/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_12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 23:39:09,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 23:39:09,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 23:39:09,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 23:39:09,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 23:39:09,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 23:39:09,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 23:39:09,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-20 23:39:09,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 23:39:09,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 23:39:09,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 23:39:09,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 23:39:09,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 23:39:09,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 23:39:09,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 23:39:09,631 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-20 23:39:09,631 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 23:39:09,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 23:39:09,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 23:39:09,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 23:39:09,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 23:39:09,833 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 23:39:09,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-03-20 23:39:09,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76534e86f/5b6b749969b34415bb3077003c347f00/FLAG6c1d45d21 [2022-03-20 23:39:10,270 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 23:39:10,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-03-20 23:39:10,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76534e86f/5b6b749969b34415bb3077003c347f00/FLAG6c1d45d21 [2022-03-20 23:39:10,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76534e86f/5b6b749969b34415bb3077003c347f00 [2022-03-20 23:39:10,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 23:39:10,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 23:39:10,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 23:39:10,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 23:39:10,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 23:39:10,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dad17b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10, skipping insertion in model container [2022-03-20 23:39:10,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 23:39:10,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 23:39:10,509 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_12.cil.c[49672,49685] [2022-03-20 23:39:10,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 23:39:10,527 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 23:39:10,567 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_12.cil.c[49672,49685] [2022-03-20 23:39:10,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 23:39:10,577 INFO L208 MainTranslator]: Completed translation [2022-03-20 23:39:10,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10 WrapperNode [2022-03-20 23:39:10,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 23:39:10,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 23:39:10,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 23:39:10,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 23:39:10,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 23:39:10,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 23:39:10,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 23:39:10,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 23:39:10,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (1/1) ... [2022-03-20 23:39:10,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 23:39:10,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 23:39:10,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 23:39:10,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 23:39:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 23:39:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 23:39:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 23:39:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 23:39:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 23:39:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 23:39:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 23:39:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 23:39:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 23:39:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 23:39:10,779 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 23:39:10,780 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 23:39:10,824 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 23:39:11,127 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-03-20 23:39:11,127 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-03-20 23:39:11,132 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 23:39:11,139 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 23:39:11,139 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 23:39:11,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 11:39:11 BoogieIcfgContainer [2022-03-20 23:39:11,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 23:39:11,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 23:39:11,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 23:39:11,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 23:39:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 11:39:10" (1/3) ... [2022-03-20 23:39:11,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f2d7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 11:39:11, skipping insertion in model container [2022-03-20 23:39:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 11:39:10" (2/3) ... [2022-03-20 23:39:11,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f2d7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 11:39:11, skipping insertion in model container [2022-03-20 23:39:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 11:39:11" (3/3) ... [2022-03-20 23:39:11,150 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c [2022-03-20 23:39:11,154 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 23:39:11,154 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 23:39:11,186 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 23:39:11,200 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 23:39:11,201 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 23:39:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 23:39:11,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-03-20 23:39:11,225 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:11,226 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] [2022-03-20 23:39:11,226 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:11,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:11,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1199187261, now seen corresponding path program 1 times [2022-03-20 23:39:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:11,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [186868423] [2022-03-20 23:39:11,245 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:11,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1199187261, now seen corresponding path program 2 times [2022-03-20 23:39:11,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:11,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668106163] [2022-03-20 23:39:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:11,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:11,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:11,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668106163] [2022-03-20 23:39:11,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668106163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:11,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:11,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:11,493 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:11,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [186868423] [2022-03-20 23:39:11,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [186868423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:11,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:11,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:11,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945039123] [2022-03-20 23:39:11,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:11,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:11,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:11,522 INFO L87 Difference]: Start difference. First operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 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 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:12,010 INFO L93 Difference]: Finished difference Result 363 states and 624 transitions. [2022-03-20 23:39:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:12,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 34 [2022-03-20 23:39:12,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:12,024 INFO L225 Difference]: With dead ends: 363 [2022-03-20 23:39:12,024 INFO L226 Difference]: Without dead ends: 180 [2022-03-20 23:39:12,027 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:12,029 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 862 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:12,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 258 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-20 23:39:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-03-20 23:39:12,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2022-03-20 23:39:12,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.6127167630057804) internal successors, (279), 173 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 283 transitions. [2022-03-20 23:39:12,067 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 283 transitions. Word has length 34 [2022-03-20 23:39:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:12,067 INFO L478 AbstractCegarLoop]: Abstraction has 178 states and 283 transitions. [2022-03-20 23:39:12,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 283 transitions. [2022-03-20 23:39:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-20 23:39:12,068 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:12,068 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] [2022-03-20 23:39:12,068 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 23:39:12,069 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash -576860, now seen corresponding path program 1 times [2022-03-20 23:39:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:12,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1584200133] [2022-03-20 23:39:12,070 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash -576860, now seen corresponding path program 2 times [2022-03-20 23:39:12,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:12,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120725049] [2022-03-20 23:39:12,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:12,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:12,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:12,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120725049] [2022-03-20 23:39:12,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120725049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:12,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:12,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:12,132 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:12,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1584200133] [2022-03-20 23:39:12,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1584200133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:12,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:12,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018867181] [2022-03-20 23:39:12,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:12,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:12,134 INFO L87 Difference]: Start difference. First operand 178 states and 283 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:12,443 INFO L93 Difference]: Finished difference Result 364 states and 581 transitions. [2022-03-20 23:39:12,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:12,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-03-20 23:39:12,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:12,445 INFO L225 Difference]: With dead ends: 364 [2022-03-20 23:39:12,445 INFO L226 Difference]: Without dead ends: 200 [2022-03-20 23:39:12,446 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:12,447 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 766 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:12,447 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 197 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 23:39:12,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-20 23:39:12,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-03-20 23:39:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.5846153846153845) internal successors, (309), 195 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 313 transitions. [2022-03-20 23:39:12,463 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 313 transitions. Word has length 35 [2022-03-20 23:39:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:12,463 INFO L478 AbstractCegarLoop]: Abstraction has 200 states and 313 transitions. [2022-03-20 23:39:12,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 313 transitions. [2022-03-20 23:39:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-20 23:39:12,464 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:12,464 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] [2022-03-20 23:39:12,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 23:39:12,464 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1037347800, now seen corresponding path program 1 times [2022-03-20 23:39:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:12,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [455455869] [2022-03-20 23:39:12,465 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1037347800, now seen corresponding path program 2 times [2022-03-20 23:39:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:12,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65830050] [2022-03-20 23:39:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:12,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:12,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65830050] [2022-03-20 23:39:12,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65830050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:12,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:12,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:12,536 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:12,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [455455869] [2022-03-20 23:39:12,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [455455869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:12,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:12,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:12,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894866892] [2022-03-20 23:39:12,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:12,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:12,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:12,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:12,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:12,537 INFO L87 Difference]: Start difference. First operand 200 states and 313 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:12,887 INFO L93 Difference]: Finished difference Result 393 states and 622 transitions. [2022-03-20 23:39:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:12,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-03-20 23:39:12,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:12,889 INFO L225 Difference]: With dead ends: 393 [2022-03-20 23:39:12,889 INFO L226 Difference]: Without dead ends: 207 [2022-03-20 23:39:12,890 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:12,890 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 758 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:12,891 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 23:39:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-20 23:39:12,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-03-20 23:39:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5940594059405941) internal successors, (322), 202 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 326 transitions. [2022-03-20 23:39:12,907 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 326 transitions. Word has length 35 [2022-03-20 23:39:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:12,907 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 326 transitions. [2022-03-20 23:39:12,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 326 transitions. [2022-03-20 23:39:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-20 23:39:12,908 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:12,908 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] [2022-03-20 23:39:12,908 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 23:39:12,908 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1441132167, now seen corresponding path program 1 times [2022-03-20 23:39:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:12,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [125948465] [2022-03-20 23:39:12,909 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1441132167, now seen corresponding path program 2 times [2022-03-20 23:39:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:12,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374698767] [2022-03-20 23:39:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:12,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:12,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374698767] [2022-03-20 23:39:12,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374698767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:12,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:12,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:12,987 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:12,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [125948465] [2022-03-20 23:39:12,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [125948465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:12,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:12,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715752498] [2022-03-20 23:39:12,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:12,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:12,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:12,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:12,988 INFO L87 Difference]: Start difference. First operand 207 states and 326 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:13,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:13,282 INFO L93 Difference]: Finished difference Result 402 states and 636 transitions. [2022-03-20 23:39:13,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:13,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-03-20 23:39:13,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:13,283 INFO L225 Difference]: With dead ends: 402 [2022-03-20 23:39:13,283 INFO L226 Difference]: Without dead ends: 209 [2022-03-20 23:39:13,284 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:13,284 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:13,285 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-20 23:39:13,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-03-20 23:39:13,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2022-03-20 23:39:13,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 202 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 325 transitions. [2022-03-20 23:39:13,296 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 325 transitions. Word has length 35 [2022-03-20 23:39:13,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:13,296 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 325 transitions. [2022-03-20 23:39:13,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 325 transitions. [2022-03-20 23:39:13,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-03-20 23:39:13,297 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:13,297 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] [2022-03-20 23:39:13,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 23:39:13,297 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:13,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:13,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1028210496, now seen corresponding path program 1 times [2022-03-20 23:39:13,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:13,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [921520703] [2022-03-20 23:39:13,298 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:13,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1028210496, now seen corresponding path program 2 times [2022-03-20 23:39:13,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:13,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309647875] [2022-03-20 23:39:13,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:13,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:13,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:13,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309647875] [2022-03-20 23:39:13,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309647875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:13,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:13,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:13,347 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:13,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [921520703] [2022-03-20 23:39:13,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [921520703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:13,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:13,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:13,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901196197] [2022-03-20 23:39:13,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:13,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:13,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:13,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:13,349 INFO L87 Difference]: Start difference. First operand 207 states and 325 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:13,628 INFO L93 Difference]: Finished difference Result 410 states and 644 transitions. [2022-03-20 23:39:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:13,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 36 [2022-03-20 23:39:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:13,629 INFO L225 Difference]: With dead ends: 410 [2022-03-20 23:39:13,629 INFO L226 Difference]: Without dead ends: 217 [2022-03-20 23:39:13,630 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:13,630 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:13,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 197 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-20 23:39:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-03-20 23:39:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5792079207920793) internal successors, (319), 202 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 323 transitions. [2022-03-20 23:39:13,648 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 323 transitions. Word has length 36 [2022-03-20 23:39:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:13,649 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 323 transitions. [2022-03-20 23:39:13,649 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 323 transitions. [2022-03-20 23:39:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-03-20 23:39:13,653 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:13,654 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] [2022-03-20 23:39:13,654 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 23:39:13,654 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:13,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:13,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2097728708, now seen corresponding path program 1 times [2022-03-20 23:39:13,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:13,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [412668565] [2022-03-20 23:39:13,655 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:13,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2097728708, now seen corresponding path program 2 times [2022-03-20 23:39:13,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:13,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739849288] [2022-03-20 23:39:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:13,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:13,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:13,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:13,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739849288] [2022-03-20 23:39:13,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739849288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:13,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:13,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:13,719 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:13,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [412668565] [2022-03-20 23:39:13,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [412668565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:13,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:13,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606162567] [2022-03-20 23:39:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:13,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:13,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:13,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:13,721 INFO L87 Difference]: Start difference. First operand 207 states and 323 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:13,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:13,981 INFO L93 Difference]: Finished difference Result 410 states and 640 transitions. [2022-03-20 23:39:13,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:13,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 37 [2022-03-20 23:39:13,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:13,983 INFO L225 Difference]: With dead ends: 410 [2022-03-20 23:39:13,983 INFO L226 Difference]: Without dead ends: 217 [2022-03-20 23:39:13,983 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:13,985 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:13,985 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:13,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-20 23:39:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-03-20 23:39:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5693069306930694) internal successors, (317), 202 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 321 transitions. [2022-03-20 23:39:14,035 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 321 transitions. Word has length 37 [2022-03-20 23:39:14,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:14,036 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 321 transitions. [2022-03-20 23:39:14,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,036 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 321 transitions. [2022-03-20 23:39:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-20 23:39:14,036 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:14,036 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] [2022-03-20 23:39:14,037 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 23:39:14,037 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1553278138, now seen corresponding path program 1 times [2022-03-20 23:39:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:14,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1005374761] [2022-03-20 23:39:14,037 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:14,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1553278138, now seen corresponding path program 2 times [2022-03-20 23:39:14,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:14,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496671233] [2022-03-20 23:39:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:14,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:14,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:14,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:14,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496671233] [2022-03-20 23:39:14,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496671233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:14,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:14,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 23:39:14,084 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:14,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1005374761] [2022-03-20 23:39:14,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1005374761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:14,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:14,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 23:39:14,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493133008] [2022-03-20 23:39:14,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:14,084 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 23:39:14,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:14,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 23:39:14,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-20 23:39:14,085 INFO L87 Difference]: Start difference. First operand 207 states and 321 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:14,336 INFO L93 Difference]: Finished difference Result 443 states and 687 transitions. [2022-03-20 23:39:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 23:39:14,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 38 [2022-03-20 23:39:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:14,337 INFO L225 Difference]: With dead ends: 443 [2022-03-20 23:39:14,337 INFO L226 Difference]: Without dead ends: 250 [2022-03-20 23:39:14,338 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-20 23:39:14,338 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 482 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:14,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 195 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:14,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-20 23:39:14,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 214. [2022-03-20 23:39:14,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-03-20 23:39:14,358 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 38 [2022-03-20 23:39:14,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:14,358 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-03-20 23:39:14,358 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,358 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-03-20 23:39:14,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-03-20 23:39:14,359 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:14,360 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] [2022-03-20 23:39:14,360 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 23:39:14,360 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:14,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash 839158341, now seen corresponding path program 1 times [2022-03-20 23:39:14,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:14,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [953108914] [2022-03-20 23:39:14,361 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash 839158341, now seen corresponding path program 2 times [2022-03-20 23:39:14,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:14,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272793013] [2022-03-20 23:39:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:14,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:14,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:14,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272793013] [2022-03-20 23:39:14,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272793013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:14,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:14,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:14,416 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:14,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [953108914] [2022-03-20 23:39:14,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [953108914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:14,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:14,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:14,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117522525] [2022-03-20 23:39:14,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:14,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:14,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:14,417 INFO L87 Difference]: Start difference. First operand 214 states and 331 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:14,692 INFO L93 Difference]: Finished difference Result 424 states and 656 transitions. [2022-03-20 23:39:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:14,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 38 [2022-03-20 23:39:14,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:14,694 INFO L225 Difference]: With dead ends: 424 [2022-03-20 23:39:14,694 INFO L226 Difference]: Without dead ends: 224 [2022-03-20 23:39:14,694 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:14,695 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:14,695 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 199 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:14,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-03-20 23:39:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-03-20 23:39:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.555023923444976) internal successors, (325), 209 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 329 transitions. [2022-03-20 23:39:14,713 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 329 transitions. Word has length 38 [2022-03-20 23:39:14,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:14,713 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 329 transitions. [2022-03-20 23:39:14,713 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 329 transitions. [2022-03-20 23:39:14,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-20 23:39:14,714 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:14,714 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] [2022-03-20 23:39:14,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 23:39:14,714 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:14,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1549869087, now seen corresponding path program 1 times [2022-03-20 23:39:14,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:14,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [866133181] [2022-03-20 23:39:14,714 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1549869087, now seen corresponding path program 2 times [2022-03-20 23:39:14,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:14,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361892092] [2022-03-20 23:39:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:14,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:14,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:14,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:14,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361892092] [2022-03-20 23:39:14,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361892092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:14,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:14,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:14,767 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:14,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [866133181] [2022-03-20 23:39:14,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [866133181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:14,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:14,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:14,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104602055] [2022-03-20 23:39:14,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:14,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:14,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:14,768 INFO L87 Difference]: Start difference. First operand 214 states and 329 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:15,044 INFO L93 Difference]: Finished difference Result 424 states and 652 transitions. [2022-03-20 23:39:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:15,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 39 [2022-03-20 23:39:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:15,046 INFO L225 Difference]: With dead ends: 424 [2022-03-20 23:39:15,047 INFO L226 Difference]: Without dead ends: 224 [2022-03-20 23:39:15,048 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:15,049 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:15,049 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 200 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-03-20 23:39:15,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-03-20 23:39:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5454545454545454) internal successors, (323), 209 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 327 transitions. [2022-03-20 23:39:15,067 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 327 transitions. Word has length 39 [2022-03-20 23:39:15,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:15,068 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 327 transitions. [2022-03-20 23:39:15,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 327 transitions. [2022-03-20 23:39:15,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-20 23:39:15,069 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:15,069 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] [2022-03-20 23:39:15,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 23:39:15,069 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:15,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:15,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1904631677, now seen corresponding path program 1 times [2022-03-20 23:39:15,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:15,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [617320171] [2022-03-20 23:39:15,070 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:15,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1904631677, now seen corresponding path program 2 times [2022-03-20 23:39:15,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:15,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036399268] [2022-03-20 23:39:15,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:15,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:15,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:15,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036399268] [2022-03-20 23:39:15,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036399268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:15,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:15,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:15,126 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:15,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [617320171] [2022-03-20 23:39:15,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [617320171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:15,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:15,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:15,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719844778] [2022-03-20 23:39:15,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:15,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:15,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:15,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:15,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:15,127 INFO L87 Difference]: Start difference. First operand 214 states and 327 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:15,396 INFO L93 Difference]: Finished difference Result 419 states and 644 transitions. [2022-03-20 23:39:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 39 [2022-03-20 23:39:15,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:15,397 INFO L225 Difference]: With dead ends: 419 [2022-03-20 23:39:15,397 INFO L226 Difference]: Without dead ends: 219 [2022-03-20 23:39:15,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:15,398 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:15,398 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 204 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-20 23:39:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-03-20 23:39:15,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5450236966824644) internal successors, (326), 211 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 330 transitions. [2022-03-20 23:39:15,415 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 330 transitions. Word has length 39 [2022-03-20 23:39:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:15,416 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 330 transitions. [2022-03-20 23:39:15,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,416 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 330 transitions. [2022-03-20 23:39:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-20 23:39:15,416 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:15,416 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] [2022-03-20 23:39:15,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 23:39:15,416 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:15,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:15,417 INFO L85 PathProgramCache]: Analyzing trace with hash -827017343, now seen corresponding path program 1 times [2022-03-20 23:39:15,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:15,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1165957919] [2022-03-20 23:39:15,417 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:15,417 INFO L85 PathProgramCache]: Analyzing trace with hash -827017343, now seen corresponding path program 2 times [2022-03-20 23:39:15,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:15,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161941802] [2022-03-20 23:39:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:15,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:15,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:15,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161941802] [2022-03-20 23:39:15,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161941802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:15,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:15,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:15,446 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:15,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1165957919] [2022-03-20 23:39:15,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1165957919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:15,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:15,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132784366] [2022-03-20 23:39:15,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:15,446 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:15,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:15,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:15,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:15,447 INFO L87 Difference]: Start difference. First operand 216 states and 330 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:15,729 INFO L93 Difference]: Finished difference Result 444 states and 678 transitions. [2022-03-20 23:39:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:15,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 40 [2022-03-20 23:39:15,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:15,730 INFO L225 Difference]: With dead ends: 444 [2022-03-20 23:39:15,731 INFO L226 Difference]: Without dead ends: 242 [2022-03-20 23:39:15,731 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:15,731 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:15,732 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 205 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-03-20 23:39:15,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 239. [2022-03-20 23:39:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5256410256410255) internal successors, (357), 234 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 361 transitions. [2022-03-20 23:39:15,757 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 361 transitions. Word has length 40 [2022-03-20 23:39:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:15,757 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 361 transitions. [2022-03-20 23:39:15,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 361 transitions. [2022-03-20 23:39:15,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-20 23:39:15,757 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:15,757 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] [2022-03-20 23:39:15,758 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 23:39:15,758 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:15,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:15,758 INFO L85 PathProgramCache]: Analyzing trace with hash 341017417, now seen corresponding path program 1 times [2022-03-20 23:39:15,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:15,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2117979323] [2022-03-20 23:39:15,758 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash 341017417, now seen corresponding path program 2 times [2022-03-20 23:39:15,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:15,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564696609] [2022-03-20 23:39:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:15,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:15,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:15,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:15,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564696609] [2022-03-20 23:39:15,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564696609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:15,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:15,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:15,791 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:15,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2117979323] [2022-03-20 23:39:15,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2117979323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:15,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:15,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:15,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281746127] [2022-03-20 23:39:15,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:15,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:15,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:15,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:15,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:15,792 INFO L87 Difference]: Start difference. First operand 239 states and 361 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:16,071 INFO L93 Difference]: Finished difference Result 493 states and 745 transitions. [2022-03-20 23:39:16,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:16,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 43 [2022-03-20 23:39:16,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:16,072 INFO L225 Difference]: With dead ends: 493 [2022-03-20 23:39:16,072 INFO L226 Difference]: Without dead ends: 268 [2022-03-20 23:39:16,073 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:16,073 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 732 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:16,073 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 220 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:16,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-03-20 23:39:16,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 264. [2022-03-20 23:39:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.5096525096525097) internal successors, (391), 259 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 395 transitions. [2022-03-20 23:39:16,096 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 395 transitions. Word has length 43 [2022-03-20 23:39:16,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:16,096 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 395 transitions. [2022-03-20 23:39:16,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 395 transitions. [2022-03-20 23:39:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-20 23:39:16,097 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:16,097 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] [2022-03-20 23:39:16,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 23:39:16,097 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1564538053, now seen corresponding path program 1 times [2022-03-20 23:39:16,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:16,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1257877904] [2022-03-20 23:39:16,097 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:16,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1564538053, now seen corresponding path program 2 times [2022-03-20 23:39:16,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:16,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315961362] [2022-03-20 23:39:16,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:16,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:16,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:16,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315961362] [2022-03-20 23:39:16,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315961362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:16,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:16,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:16,132 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:16,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1257877904] [2022-03-20 23:39:16,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1257877904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:16,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:16,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:16,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135327713] [2022-03-20 23:39:16,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:16,133 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:16,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:16,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:16,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:16,133 INFO L87 Difference]: Start difference. First operand 264 states and 395 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:16,426 INFO L93 Difference]: Finished difference Result 547 states and 818 transitions. [2022-03-20 23:39:16,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:16,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 43 [2022-03-20 23:39:16,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:16,428 INFO L225 Difference]: With dead ends: 547 [2022-03-20 23:39:16,428 INFO L226 Difference]: Without dead ends: 297 [2022-03-20 23:39:16,428 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:16,429 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 768 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:16,429 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 206 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:16,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-03-20 23:39:16,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 292. [2022-03-20 23:39:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.494773519163763) internal successors, (429), 287 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 433 transitions. [2022-03-20 23:39:16,478 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 433 transitions. Word has length 43 [2022-03-20 23:39:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:16,478 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 433 transitions. [2022-03-20 23:39:16,478 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,478 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 433 transitions. [2022-03-20 23:39:16,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-20 23:39:16,479 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:16,479 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] [2022-03-20 23:39:16,479 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 23:39:16,479 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:16,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash -570717011, now seen corresponding path program 1 times [2022-03-20 23:39:16,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:16,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1650735280] [2022-03-20 23:39:16,480 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:16,480 INFO L85 PathProgramCache]: Analyzing trace with hash -570717011, now seen corresponding path program 2 times [2022-03-20 23:39:16,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:16,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203284418] [2022-03-20 23:39:16,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:16,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:16,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:16,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203284418] [2022-03-20 23:39:16,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203284418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:16,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:16,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:16,509 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:16,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1650735280] [2022-03-20 23:39:16,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1650735280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:16,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:16,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:16,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029864506] [2022-03-20 23:39:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:16,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:16,510 INFO L87 Difference]: Start difference. First operand 292 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:16,817 INFO L93 Difference]: Finished difference Result 575 states and 856 transitions. [2022-03-20 23:39:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:16,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 44 [2022-03-20 23:39:16,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:16,819 INFO L225 Difference]: With dead ends: 575 [2022-03-20 23:39:16,819 INFO L226 Difference]: Without dead ends: 297 [2022-03-20 23:39:16,820 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:16,820 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 761 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:16,820 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 206 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-03-20 23:39:16,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 293. [2022-03-20 23:39:16,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 288 states have (on average 1.4895833333333333) internal successors, (429), 288 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 433 transitions. [2022-03-20 23:39:16,862 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 433 transitions. Word has length 44 [2022-03-20 23:39:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:16,863 INFO L478 AbstractCegarLoop]: Abstraction has 293 states and 433 transitions. [2022-03-20 23:39:16,863 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 433 transitions. [2022-03-20 23:39:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-20 23:39:16,863 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:16,863 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] [2022-03-20 23:39:16,864 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 23:39:16,864 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:16,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1737605119, now seen corresponding path program 1 times [2022-03-20 23:39:16,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:16,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [508165418] [2022-03-20 23:39:16,865 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1737605119, now seen corresponding path program 2 times [2022-03-20 23:39:16,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:16,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801172088] [2022-03-20 23:39:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:16,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:16,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:16,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801172088] [2022-03-20 23:39:16,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801172088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:16,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:16,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:16,903 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:16,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [508165418] [2022-03-20 23:39:16,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [508165418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:16,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:16,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:16,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533228608] [2022-03-20 23:39:16,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:16,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:16,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:16,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:16,905 INFO L87 Difference]: Start difference. First operand 293 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:17,194 INFO L93 Difference]: Finished difference Result 579 states and 859 transitions. [2022-03-20 23:39:17,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:17,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 44 [2022-03-20 23:39:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:17,195 INFO L225 Difference]: With dead ends: 579 [2022-03-20 23:39:17,195 INFO L226 Difference]: Without dead ends: 300 [2022-03-20 23:39:17,196 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:17,196 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 763 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:17,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 208 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:17,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-03-20 23:39:17,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 295. [2022-03-20 23:39:17,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.4896551724137932) internal successors, (432), 290 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 436 transitions. [2022-03-20 23:39:17,246 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 436 transitions. Word has length 44 [2022-03-20 23:39:17,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:17,247 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 436 transitions. [2022-03-20 23:39:17,247 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,247 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 436 transitions. [2022-03-20 23:39:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 23:39:17,247 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:17,247 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] [2022-03-20 23:39:17,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 23:39:17,247 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:17,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:17,248 INFO L85 PathProgramCache]: Analyzing trace with hash -970621315, now seen corresponding path program 1 times [2022-03-20 23:39:17,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:17,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1345015111] [2022-03-20 23:39:17,248 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:17,248 INFO L85 PathProgramCache]: Analyzing trace with hash -970621315, now seen corresponding path program 2 times [2022-03-20 23:39:17,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:17,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839719823] [2022-03-20 23:39:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:17,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:17,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:17,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839719823] [2022-03-20 23:39:17,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839719823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:17,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:17,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:17,280 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:17,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1345015111] [2022-03-20 23:39:17,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1345015111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:17,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:17,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:17,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413807656] [2022-03-20 23:39:17,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:17,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:17,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:17,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:17,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:17,281 INFO L87 Difference]: Start difference. First operand 295 states and 436 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:17,570 INFO L93 Difference]: Finished difference Result 615 states and 910 transitions. [2022-03-20 23:39:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:17,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 45 [2022-03-20 23:39:17,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:17,571 INFO L225 Difference]: With dead ends: 615 [2022-03-20 23:39:17,571 INFO L226 Difference]: Without dead ends: 334 [2022-03-20 23:39:17,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:17,572 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 785 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:17,572 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 209 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:17,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-03-20 23:39:17,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2022-03-20 23:39:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.475) internal successors, (472), 320 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-03-20 23:39:17,608 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-03-20 23:39:17,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:17,608 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-03-20 23:39:17,608 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,608 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-03-20 23:39:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-20 23:39:17,608 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:17,608 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] [2022-03-20 23:39:17,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 23:39:17,609 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:17,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash -957955839, now seen corresponding path program 1 times [2022-03-20 23:39:17,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:17,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1492408600] [2022-03-20 23:39:17,609 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash -957955839, now seen corresponding path program 2 times [2022-03-20 23:39:17,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:17,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723174677] [2022-03-20 23:39:17,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:17,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:17,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:17,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:17,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723174677] [2022-03-20 23:39:17,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723174677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:17,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:17,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:17,637 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:17,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1492408600] [2022-03-20 23:39:17,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1492408600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:17,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:17,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:17,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764291554] [2022-03-20 23:39:17,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:17,638 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:17,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:17,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:17,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:17,638 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:17,945 INFO L93 Difference]: Finished difference Result 649 states and 957 transitions. [2022-03-20 23:39:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:17,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 46 [2022-03-20 23:39:17,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:17,947 INFO L225 Difference]: With dead ends: 649 [2022-03-20 23:39:17,947 INFO L226 Difference]: Without dead ends: 338 [2022-03-20 23:39:17,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:17,948 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 788 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:17,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 209 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:17,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-20 23:39:17,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 329. [2022-03-20 23:39:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 324 states have (on average 1.478395061728395) internal successors, (479), 324 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 483 transitions. [2022-03-20 23:39:17,987 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 483 transitions. Word has length 46 [2022-03-20 23:39:17,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:17,987 INFO L478 AbstractCegarLoop]: Abstraction has 329 states and 483 transitions. [2022-03-20 23:39:17,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 483 transitions. [2022-03-20 23:39:17,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 23:39:17,987 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:17,987 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, 1] [2022-03-20 23:39:17,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 23:39:17,988 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:17,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash 14351293, now seen corresponding path program 1 times [2022-03-20 23:39:17,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:17,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [441037803] [2022-03-20 23:39:17,988 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash 14351293, now seen corresponding path program 2 times [2022-03-20 23:39:17,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:17,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669496197] [2022-03-20 23:39:17,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:17,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:18,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:18,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:18,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669496197] [2022-03-20 23:39:18,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669496197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:18,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:18,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:18,032 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:18,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [441037803] [2022-03-20 23:39:18,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [441037803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:18,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:18,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:18,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137596779] [2022-03-20 23:39:18,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:18,033 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:18,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:18,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:18,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:18,033 INFO L87 Difference]: Start difference. First operand 329 states and 483 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:18,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:18,325 INFO L93 Difference]: Finished difference Result 686 states and 1008 transitions. [2022-03-20 23:39:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:18,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 48 [2022-03-20 23:39:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:18,327 INFO L225 Difference]: With dead ends: 686 [2022-03-20 23:39:18,327 INFO L226 Difference]: Without dead ends: 371 [2022-03-20 23:39:18,327 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:18,329 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:18,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 209 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-03-20 23:39:18,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 357. [2022-03-20 23:39:18,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 352 states have (on average 1.4602272727272727) internal successors, (514), 352 states have internal predecessors, (514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 518 transitions. [2022-03-20 23:39:18,371 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 518 transitions. Word has length 48 [2022-03-20 23:39:18,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:18,372 INFO L478 AbstractCegarLoop]: Abstraction has 357 states and 518 transitions. [2022-03-20 23:39:18,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 518 transitions. [2022-03-20 23:39:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 23:39:18,372 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:18,372 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, 1] [2022-03-20 23:39:18,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 23:39:18,372 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:18,373 INFO L85 PathProgramCache]: Analyzing trace with hash -447006304, now seen corresponding path program 1 times [2022-03-20 23:39:18,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:18,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [342152467] [2022-03-20 23:39:18,373 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:18,373 INFO L85 PathProgramCache]: Analyzing trace with hash -447006304, now seen corresponding path program 2 times [2022-03-20 23:39:18,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:18,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238343789] [2022-03-20 23:39:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:18,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:18,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238343789] [2022-03-20 23:39:18,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238343789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:18,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:18,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:18,404 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:18,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [342152467] [2022-03-20 23:39:18,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [342152467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:18,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:18,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:18,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246060051] [2022-03-20 23:39:18,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:18,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:18,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:18,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:18,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:18,405 INFO L87 Difference]: Start difference. First operand 357 states and 518 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:18,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:18,730 INFO L93 Difference]: Finished difference Result 734 states and 1062 transitions. [2022-03-20 23:39:18,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:18,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 48 [2022-03-20 23:39:18,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:18,731 INFO L225 Difference]: With dead ends: 734 [2022-03-20 23:39:18,731 INFO L226 Difference]: Without dead ends: 391 [2022-03-20 23:39:18,732 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:18,732 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:18,732 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 211 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-03-20 23:39:18,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2022-03-20 23:39:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4453125) internal successors, (555), 384 states have internal predecessors, (555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 559 transitions. [2022-03-20 23:39:18,783 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 559 transitions. Word has length 48 [2022-03-20 23:39:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:18,783 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 559 transitions. [2022-03-20 23:39:18,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:18,783 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 559 transitions. [2022-03-20 23:39:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 23:39:18,786 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:18,786 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, 1, 1] [2022-03-20 23:39:18,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 23:39:18,786 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:18,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:18,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1888205337, now seen corresponding path program 1 times [2022-03-20 23:39:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:18,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1438238875] [2022-03-20 23:39:18,787 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:18,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1888205337, now seen corresponding path program 2 times [2022-03-20 23:39:18,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:18,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479085310] [2022-03-20 23:39:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:18,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:18,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:18,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:18,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:18,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479085310] [2022-03-20 23:39:18,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479085310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:18,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:18,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:18,818 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:18,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1438238875] [2022-03-20 23:39:18,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1438238875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:18,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:18,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:18,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000474277] [2022-03-20 23:39:18,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:18,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:18,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:18,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:18,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:18,819 INFO L87 Difference]: Start difference. First operand 389 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:19,146 INFO L93 Difference]: Finished difference Result 778 states and 1123 transitions. [2022-03-20 23:39:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:19,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 49 [2022-03-20 23:39:19,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:19,148 INFO L225 Difference]: With dead ends: 778 [2022-03-20 23:39:19,148 INFO L226 Difference]: Without dead ends: 403 [2022-03-20 23:39:19,149 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:19,149 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:19,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 210 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:19,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-03-20 23:39:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 389. [2022-03-20 23:39:19,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4375) internal successors, (552), 384 states have internal predecessors, (552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 556 transitions. [2022-03-20 23:39:19,226 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 556 transitions. Word has length 49 [2022-03-20 23:39:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:19,226 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 556 transitions. [2022-03-20 23:39:19,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 556 transitions. [2022-03-20 23:39:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 23:39:19,227 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:19,227 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, 1, 1] [2022-03-20 23:39:19,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 23:39:19,227 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:19,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:19,227 INFO L85 PathProgramCache]: Analyzing trace with hash -396811972, now seen corresponding path program 1 times [2022-03-20 23:39:19,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:19,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [443715931] [2022-03-20 23:39:19,228 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:19,228 INFO L85 PathProgramCache]: Analyzing trace with hash -396811972, now seen corresponding path program 2 times [2022-03-20 23:39:19,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:19,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562587549] [2022-03-20 23:39:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:19,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:19,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:19,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562587549] [2022-03-20 23:39:19,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562587549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:19,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:19,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:19,264 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:19,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [443715931] [2022-03-20 23:39:19,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [443715931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:19,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:19,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:19,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853326749] [2022-03-20 23:39:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:19,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:19,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:19,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:19,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:19,265 INFO L87 Difference]: Start difference. First operand 389 states and 556 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:19,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:19,548 INFO L93 Difference]: Finished difference Result 768 states and 1100 transitions. [2022-03-20 23:39:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:19,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 49 [2022-03-20 23:39:19,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:19,549 INFO L225 Difference]: With dead ends: 768 [2022-03-20 23:39:19,549 INFO L226 Difference]: Without dead ends: 393 [2022-03-20 23:39:19,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:19,550 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 746 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:19,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 217 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:19,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-03-20 23:39:19,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2022-03-20 23:39:19,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4378238341968912) internal successors, (555), 386 states have internal predecessors, (555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:19,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 559 transitions. [2022-03-20 23:39:19,603 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 559 transitions. Word has length 49 [2022-03-20 23:39:19,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:19,603 INFO L478 AbstractCegarLoop]: Abstraction has 391 states and 559 transitions. [2022-03-20 23:39:19,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:19,603 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 559 transitions. [2022-03-20 23:39:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 23:39:19,605 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:19,605 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, 1, 1, 1] [2022-03-20 23:39:19,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 23:39:19,605 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:19,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1088761570, now seen corresponding path program 1 times [2022-03-20 23:39:19,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:19,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1875660604] [2022-03-20 23:39:19,606 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1088761570, now seen corresponding path program 2 times [2022-03-20 23:39:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:19,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366803051] [2022-03-20 23:39:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:19,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:19,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:19,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366803051] [2022-03-20 23:39:19,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366803051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:19,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:19,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:19,639 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:19,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1875660604] [2022-03-20 23:39:19,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1875660604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:19,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:19,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:19,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256189387] [2022-03-20 23:39:19,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:19,640 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:19,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:19,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:19,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:19,640 INFO L87 Difference]: Start difference. First operand 391 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:19,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:19,965 INFO L93 Difference]: Finished difference Result 832 states and 1196 transitions. [2022-03-20 23:39:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:19,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2022-03-20 23:39:19,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:19,967 INFO L225 Difference]: With dead ends: 832 [2022-03-20 23:39:19,967 INFO L226 Difference]: Without dead ends: 455 [2022-03-20 23:39:19,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:19,969 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 739 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:19,969 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 213 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:19,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-03-20 23:39:20,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2022-03-20 23:39:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4308035714285714) internal successors, (641), 448 states have internal predecessors, (641), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2022-03-20 23:39:20,032 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 50 [2022-03-20 23:39:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:20,032 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2022-03-20 23:39:20,032 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2022-03-20 23:39:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 23:39:20,033 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:20,033 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, 1, 1, 1] [2022-03-20 23:39:20,033 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 23:39:20,033 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1090858659, now seen corresponding path program 1 times [2022-03-20 23:39:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:20,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [711603309] [2022-03-20 23:39:20,035 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:20,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1090858659, now seen corresponding path program 2 times [2022-03-20 23:39:20,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:20,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770437571] [2022-03-20 23:39:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:20,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:20,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:20,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770437571] [2022-03-20 23:39:20,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770437571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:20,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:20,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:20,063 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:20,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [711603309] [2022-03-20 23:39:20,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [711603309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:20,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:20,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:20,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251882876] [2022-03-20 23:39:20,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:20,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:20,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:20,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:20,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:20,064 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:20,381 INFO L93 Difference]: Finished difference Result 944 states and 1344 transitions. [2022-03-20 23:39:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:20,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2022-03-20 23:39:20,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:20,383 INFO L225 Difference]: With dead ends: 944 [2022-03-20 23:39:20,383 INFO L226 Difference]: Without dead ends: 505 [2022-03-20 23:39:20,384 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:20,384 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 809 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:20,384 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 212 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-03-20 23:39:20,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 495. [2022-03-20 23:39:20,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.4224489795918367) internal successors, (697), 490 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 701 transitions. [2022-03-20 23:39:20,476 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 701 transitions. Word has length 50 [2022-03-20 23:39:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:20,477 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 701 transitions. [2022-03-20 23:39:20,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 701 transitions. [2022-03-20 23:39:20,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 23:39:20,477 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:20,477 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, 1, 1, 1, 1] [2022-03-20 23:39:20,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 23:39:20,477 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:20,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:20,478 INFO L85 PathProgramCache]: Analyzing trace with hash -163662636, now seen corresponding path program 1 times [2022-03-20 23:39:20,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:20,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [88711082] [2022-03-20 23:39:20,478 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:20,478 INFO L85 PathProgramCache]: Analyzing trace with hash -163662636, now seen corresponding path program 2 times [2022-03-20 23:39:20,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:20,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491676250] [2022-03-20 23:39:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:20,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:20,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:20,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:20,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491676250] [2022-03-20 23:39:20,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491676250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:20,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:20,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:20,510 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:20,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [88711082] [2022-03-20 23:39:20,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [88711082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:20,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:20,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:20,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141128752] [2022-03-20 23:39:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:20,511 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:20,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:20,511 INFO L87 Difference]: Start difference. First operand 495 states and 701 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:20,843 INFO L93 Difference]: Finished difference Result 995 states and 1416 transitions. [2022-03-20 23:39:20,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:20,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 51 [2022-03-20 23:39:20,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:20,845 INFO L225 Difference]: With dead ends: 995 [2022-03-20 23:39:20,845 INFO L226 Difference]: Without dead ends: 514 [2022-03-20 23:39:20,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:20,846 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 812 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:20,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 212 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:20,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-03-20 23:39:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 504. [2022-03-20 23:39:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 499 states have (on average 1.4288577154308617) internal successors, (713), 499 states have internal predecessors, (713), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 717 transitions. [2022-03-20 23:39:20,922 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 717 transitions. Word has length 51 [2022-03-20 23:39:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:20,923 INFO L478 AbstractCegarLoop]: Abstraction has 504 states and 717 transitions. [2022-03-20 23:39:20,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:20,923 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 717 transitions. [2022-03-20 23:39:20,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 23:39:20,923 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:20,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 23:39:20,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 23:39:20,923 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:20,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:20,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1175453866, now seen corresponding path program 1 times [2022-03-20 23:39:20,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:20,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [62640940] [2022-03-20 23:39:20,926 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:20,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1175453866, now seen corresponding path program 2 times [2022-03-20 23:39:20,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:20,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987340824] [2022-03-20 23:39:20,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:20,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:20,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:20,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987340824] [2022-03-20 23:39:20,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987340824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:20,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:20,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:20,958 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:20,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [62640940] [2022-03-20 23:39:20,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [62640940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:20,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:20,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:20,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265407577] [2022-03-20 23:39:20,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:20,958 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:20,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:20,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:20,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:20,959 INFO L87 Difference]: Start difference. First operand 504 states and 717 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:21,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:21,357 INFO L93 Difference]: Finished difference Result 1045 states and 1487 transitions. [2022-03-20 23:39:21,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:21,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 64 [2022-03-20 23:39:21,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:21,359 INFO L225 Difference]: With dead ends: 1045 [2022-03-20 23:39:21,359 INFO L226 Difference]: Without dead ends: 555 [2022-03-20 23:39:21,360 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:21,360 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 807 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:21,361 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 213 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:21,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-03-20 23:39:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 549. [2022-03-20 23:39:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.4209558823529411) internal successors, (773), 544 states have internal predecessors, (773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 777 transitions. [2022-03-20 23:39:21,444 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 777 transitions. Word has length 64 [2022-03-20 23:39:21,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:21,445 INFO L478 AbstractCegarLoop]: Abstraction has 549 states and 777 transitions. [2022-03-20 23:39:21,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 777 transitions. [2022-03-20 23:39:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 23:39:21,445 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:21,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 23:39:21,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 23:39:21,446 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:21,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:21,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1954305357, now seen corresponding path program 1 times [2022-03-20 23:39:21,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:21,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1721648702] [2022-03-20 23:39:21,446 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 23:39:21,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1954305357, now seen corresponding path program 2 times [2022-03-20 23:39:21,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 23:39:21,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695670957] [2022-03-20 23:39:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 23:39:21,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 23:39:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:21,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 23:39:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 23:39:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 23:39:21,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 23:39:21,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695670957] [2022-03-20 23:39:21,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695670957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:21,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:21,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:21,479 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 23:39:21,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1721648702] [2022-03-20 23:39:21,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1721648702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 23:39:21,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 23:39:21,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 23:39:21,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940484408] [2022-03-20 23:39:21,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 23:39:21,480 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 23:39:21,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:21,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 23:39:21,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 23:39:21,481 INFO L87 Difference]: Start difference. First operand 549 states and 777 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:21,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 23:39:21,833 INFO L93 Difference]: Finished difference Result 1094 states and 1553 transitions. [2022-03-20 23:39:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 23:39:21,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 65 [2022-03-20 23:39:21,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 23:39:21,836 INFO L225 Difference]: With dead ends: 1094 [2022-03-20 23:39:21,836 INFO L226 Difference]: Without dead ends: 557 [2022-03-20 23:39:21,837 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 23:39:21,837 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 815 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-20 23:39:21,837 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 211 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-20 23:39:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-03-20 23:39:21,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551. [2022-03-20 23:39:21,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4212454212454213) internal successors, (776), 546 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 780 transitions. [2022-03-20 23:39:21,938 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 780 transitions. Word has length 65 [2022-03-20 23:39:21,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 23:39:21,938 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 780 transitions. [2022-03-20 23:39:21,938 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 23:39:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 780 transitions. [2022-03-20 23:39:21,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 23:39:21,939 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 23:39:21,939 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 23:39:21,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 23:39:21,939 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 23:39:21,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 23:39:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1606826053, now seen corresponding path program 1 times [2022-03-20 23:39:21,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 23:39:21,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1033269038]