/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_6.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 00:50:23,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 00:50:23,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 00:50:23,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-07 00:50:23,605 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-07 00:50:23,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 00:50:23,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 00:50:23,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 00:50:23,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 00:50:23,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:50:23,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 00:50:23,613 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-07 00:50:23,614 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 00:50:23,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 00:50:23,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 00:50:23,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 00:50:23,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 00:50:23,830 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 00:50:23,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-04-07 00:50:23,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f226e193/3adab571114e4f75b639a3cd1cbc9759/FLAG4bee61a56 [2022-04-07 00:50:24,254 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 00:50:24,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-04-07 00:50:24,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f226e193/3adab571114e4f75b639a3cd1cbc9759/FLAG4bee61a56 [2022-04-07 00:50:24,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f226e193/3adab571114e4f75b639a3cd1cbc9759 [2022-04-07 00:50:24,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 00:50:24,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-07 00:50:24,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 00:50:24,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 00:50:24,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 00:50:24,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24, skipping insertion in model container [2022-04-07 00:50:24,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 00:50:24,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 00:50:24,592 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_6.cil-2.c[48455,48468] [2022-04-07 00:50:24,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:50:24,613 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 00:50:24,682 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_6.cil-2.c[48455,48468] [2022-04-07 00:50:24,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:50:24,692 INFO L208 MainTranslator]: Completed translation [2022-04-07 00:50:24,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24 WrapperNode [2022-04-07 00:50:24,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 00:50:24,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 00:50:24,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 00:50:24,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 00:50:24,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 00:50:24,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 00:50:24,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 00:50:24,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 00:50:24,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (1/1) ... [2022-04-07 00:50:24,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:50:24,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:50:24,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-07 00:50:24,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-07 00:50:24,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 00:50:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 00:50:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 00:50:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-07 00:50:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 00:50:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 00:50:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 00:50:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 00:50:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 00:50:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-07 00:50:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 00:50:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-07 00:50:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-07 00:50:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 00:50:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 00:50:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 00:50:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 00:50:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 00:50:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 00:50:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 00:50:24,902 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 00:50:24,903 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 00:50:24,995 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-07 00:50:25,280 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-07 00:50:25,280 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-07 00:50:25,285 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 00:50:25,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 00:50:25,291 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 00:50:25,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:50:25 BoogieIcfgContainer [2022-04-07 00:50:25,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 00:50:25,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 00:50:25,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 00:50:25,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 00:50:25,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 12:50:24" (1/3) ... [2022-04-07 00:50:25,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e52508e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:50:25, skipping insertion in model container [2022-04-07 00:50:25,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:50:24" (2/3) ... [2022-04-07 00:50:25,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e52508e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:50:25, skipping insertion in model container [2022-04-07 00:50:25,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:50:25" (3/3) ... [2022-04-07 00:50:25,312 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2022-04-07 00:50:25,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-07 00:50:25,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 00:50:25,377 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 00:50:25,381 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-07 00:50:25,382 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 00:50:25,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-07 00:50:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-07 00:50:25,417 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:25,417 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] [2022-04-07 00:50:25,417 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1438315917, now seen corresponding path program 1 times [2022-04-07 00:50:25,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:25,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1943915106] [2022-04-07 00:50:25,434 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:25,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1438315917, now seen corresponding path program 2 times [2022-04-07 00:50:25,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:25,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917494188] [2022-04-07 00:50:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:25,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:25,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:25,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:25,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917494188] [2022-04-07 00:50:25,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917494188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:25,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:25,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:25,736 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:25,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1943915106] [2022-04-07 00:50:25,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1943915106] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:25,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:25,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:25,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45625283] [2022-04-07 00:50:25,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:25,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:25,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:25,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:25,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:25,766 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 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 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) [2022-04-07 00:50:26,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:26,296 INFO L93 Difference]: Finished difference Result 373 states and 645 transitions. [2022-04-07 00:50:26,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:26,298 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 [2022-04-07 00:50:26,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:26,304 INFO L225 Difference]: With dead ends: 373 [2022-04-07 00:50:26,305 INFO L226 Difference]: Without dead ends: 199 [2022-04-07 00:50:26,307 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:26,310 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 931 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:26,310 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 225 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-07 00:50:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-04-07 00:50:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 189. [2022-04-07 00:50:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.6467391304347827) internal successors, (303), 184 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 307 transitions. [2022-04-07 00:50:26,350 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 307 transitions. Word has length 50 [2022-04-07 00:50:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:26,350 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 307 transitions. [2022-04-07 00:50:26,351 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) [2022-04-07 00:50:26,351 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 307 transitions. [2022-04-07 00:50:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-07 00:50:26,352 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:26,352 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] [2022-04-07 00:50:26,353 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 00:50:26,353 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:26,353 INFO L85 PathProgramCache]: Analyzing trace with hash 931339332, now seen corresponding path program 1 times [2022-04-07 00:50:26,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:26,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [78056712] [2022-04-07 00:50:26,354 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:50:26,354 INFO L85 PathProgramCache]: Analyzing trace with hash 931339332, now seen corresponding path program 2 times [2022-04-07 00:50:26,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:26,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606084512] [2022-04-07 00:50:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:26,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606084512] [2022-04-07 00:50:26,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606084512] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:26,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:26,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:26,414 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [78056712] [2022-04-07 00:50:26,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [78056712] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:26,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:26,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:26,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200690518] [2022-04-07 00:50:26,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:26,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:26,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:26,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:26,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:26,417 INFO L87 Difference]: Start difference. First operand 189 states and 307 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) [2022-04-07 00:50:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:26,784 INFO L93 Difference]: Finished difference Result 413 states and 685 transitions. [2022-04-07 00:50:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:26,784 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 [2022-04-07 00:50:26,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:26,787 INFO L225 Difference]: With dead ends: 413 [2022-04-07 00:50:26,788 INFO L226 Difference]: Without dead ends: 238 [2022-04-07 00:50:26,788 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:26,789 INFO L913 BasicCegarLoop]: 165 mSDtfsCounter, 796 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:26,790 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [796 Valid, 182 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:26,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-04-07 00:50:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2022-04-07 00:50:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.6860986547085202) internal successors, (376), 223 states have internal predecessors, (376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:26,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 380 transitions. [2022-04-07 00:50:26,839 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 380 transitions. Word has length 51 [2022-04-07 00:50:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:26,839 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 380 transitions. [2022-04-07 00:50:26,839 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) [2022-04-07 00:50:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 380 transitions. [2022-04-07 00:50:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-07 00:50:26,841 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:26,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:26,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 00:50:26,842 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1405895752, now seen corresponding path program 1 times [2022-04-07 00:50:26,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:26,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1193433340] [2022-04-07 00:50:26,854 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:26,855 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:26,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1405895752, now seen corresponding path program 2 times [2022-04-07 00:50:26,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:26,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466014026] [2022-04-07 00:50:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:26,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:26,944 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:26,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:26,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466014026] [2022-04-07 00:50:26,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466014026] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:26,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:26,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:26,945 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:26,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1193433340] [2022-04-07 00:50:26,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1193433340] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:26,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:26,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:26,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489495428] [2022-04-07 00:50:26,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:26,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:26,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:26,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:26,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:26,947 INFO L87 Difference]: Start difference. First operand 228 states and 380 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:27,250 INFO L93 Difference]: Finished difference Result 473 states and 800 transitions. [2022-04-07 00:50:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:27,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 78 [2022-04-07 00:50:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:27,252 INFO L225 Difference]: With dead ends: 473 [2022-04-07 00:50:27,252 INFO L226 Difference]: Without dead ends: 259 [2022-04-07 00:50:27,252 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:27,253 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 717 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:27,253 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 193 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:27,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-04-07 00:50:27,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2022-04-07 00:50:27,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 254 states have (on average 1.7007874015748032) internal successors, (432), 254 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) [2022-04-07 00:50:27,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 436 transitions. [2022-04-07 00:50:27,269 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 436 transitions. Word has length 78 [2022-04-07 00:50:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:27,269 INFO L478 AbstractCegarLoop]: Abstraction has 259 states and 436 transitions. [2022-04-07 00:50:27,269 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 436 transitions. [2022-04-07 00:50:27,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-07 00:50:27,271 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:27,271 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] [2022-04-07 00:50:27,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-07 00:50:27,271 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:27,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash -775891619, now seen corresponding path program 1 times [2022-04-07 00:50:27,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:27,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2067568599] [2022-04-07 00:50:27,274 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:27,275 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash -775891619, now seen corresponding path program 2 times [2022-04-07 00:50:27,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:27,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012513748] [2022-04-07 00:50:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:27,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:27,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:27,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012513748] [2022-04-07 00:50:27,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012513748] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:27,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:27,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:27,340 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:27,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2067568599] [2022-04-07 00:50:27,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2067568599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:27,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:27,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:27,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23901539] [2022-04-07 00:50:27,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:27,341 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:27,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:27,341 INFO L87 Difference]: Start difference. First operand 259 states and 436 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:27,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:27,646 INFO L93 Difference]: Finished difference Result 543 states and 925 transitions. [2022-04-07 00:50:27,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:27,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 84 [2022-04-07 00:50:27,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:27,648 INFO L225 Difference]: With dead ends: 543 [2022-04-07 00:50:27,648 INFO L226 Difference]: Without dead ends: 298 [2022-04-07 00:50:27,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:27,649 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 768 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:27,650 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 181 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:27,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-04-07 00:50:27,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2022-04-07 00:50:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.7137931034482758) internal successors, (497), 290 states have internal predecessors, (497), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 501 transitions. [2022-04-07 00:50:27,665 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 501 transitions. Word has length 84 [2022-04-07 00:50:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:27,665 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 501 transitions. [2022-04-07 00:50:27,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 501 transitions. [2022-04-07 00:50:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-07 00:50:27,667 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:27,667 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, 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] [2022-04-07 00:50:27,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-07 00:50:27,667 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1404001012, now seen corresponding path program 1 times [2022-04-07 00:50:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:27,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [799305988] [2022-04-07 00:50:27,670 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:27,670 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1404001012, now seen corresponding path program 2 times [2022-04-07 00:50:27,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:27,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379653845] [2022-04-07 00:50:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:27,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:27,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:50:27,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:27,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379653845] [2022-04-07 00:50:27,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379653845] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:27,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:27,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:27,713 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:27,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [799305988] [2022-04-07 00:50:27,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [799305988] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:27,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:27,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625449347] [2022-04-07 00:50:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:27,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:27,715 INFO L87 Difference]: Start difference. First operand 295 states and 501 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:28,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:28,039 INFO L93 Difference]: Finished difference Result 579 states and 988 transitions. [2022-04-07 00:50:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:28,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 85 [2022-04-07 00:50:28,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:28,041 INFO L225 Difference]: With dead ends: 579 [2022-04-07 00:50:28,041 INFO L226 Difference]: Without dead ends: 298 [2022-04-07 00:50:28,041 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:28,042 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 771 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:28,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 181 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:28,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-04-07 00:50:28,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2022-04-07 00:50:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.706896551724138) internal successors, (495), 290 states have internal predecessors, (495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 499 transitions. [2022-04-07 00:50:28,058 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 499 transitions. Word has length 85 [2022-04-07 00:50:28,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:28,058 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 499 transitions. [2022-04-07 00:50:28,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 499 transitions. [2022-04-07 00:50:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-07 00:50:28,060 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:28,060 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:28,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 00:50:28,060 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:28,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1282972194, now seen corresponding path program 1 times [2022-04-07 00:50:28,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:28,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1520959466] [2022-04-07 00:50:28,063 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:28,063 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:28,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1282972194, now seen corresponding path program 2 times [2022-04-07 00:50:28,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:28,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047364115] [2022-04-07 00:50:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:28,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:28,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:28,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047364115] [2022-04-07 00:50:28,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047364115] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:28,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:28,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:28,101 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:28,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1520959466] [2022-04-07 00:50:28,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1520959466] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:28,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:28,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:28,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495141740] [2022-04-07 00:50:28,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:28,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:28,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:28,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:28,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:28,103 INFO L87 Difference]: Start difference. First operand 295 states and 499 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) [2022-04-07 00:50:28,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:28,373 INFO L93 Difference]: Finished difference Result 593 states and 1008 transitions. [2022-04-07 00:50:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:28,373 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 90 [2022-04-07 00:50:28,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:28,375 INFO L225 Difference]: With dead ends: 593 [2022-04-07 00:50:28,375 INFO L226 Difference]: Without dead ends: 312 [2022-04-07 00:50:28,376 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:28,376 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 679 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:28,376 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [679 Valid, 193 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:28,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-04-07 00:50:28,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2022-04-07 00:50:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 305 states have (on average 1.6950819672131148) internal successors, (517), 305 states have internal predecessors, (517), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:28,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 521 transitions. [2022-04-07 00:50:28,393 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 521 transitions. Word has length 90 [2022-04-07 00:50:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:28,394 INFO L478 AbstractCegarLoop]: Abstraction has 310 states and 521 transitions. [2022-04-07 00:50:28,394 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) [2022-04-07 00:50:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 521 transitions. [2022-04-07 00:50:28,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-04-07 00:50:28,395 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:28,395 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:28,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-07 00:50:28,395 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:28,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:28,395 INFO L85 PathProgramCache]: Analyzing trace with hash -571117222, now seen corresponding path program 1 times [2022-04-07 00:50:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:28,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1691297842] [2022-04-07 00:50:28,398 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:28,398 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:28,398 INFO L85 PathProgramCache]: Analyzing trace with hash -571117222, now seen corresponding path program 2 times [2022-04-07 00:50:28,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:28,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539944113] [2022-04-07 00:50:28,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:28,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:28,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:28,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:28,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539944113] [2022-04-07 00:50:28,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539944113] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:28,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:28,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:28,434 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:28,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1691297842] [2022-04-07 00:50:28,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1691297842] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:28,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:28,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:28,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107951247] [2022-04-07 00:50:28,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:28,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:28,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:28,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:28,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:28,435 INFO L87 Difference]: Start difference. First operand 310 states and 521 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:28,717 INFO L93 Difference]: Finished difference Result 608 states and 1026 transitions. [2022-04-07 00:50:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:28,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 91 [2022-04-07 00:50:28,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:28,719 INFO L225 Difference]: With dead ends: 608 [2022-04-07 00:50:28,719 INFO L226 Difference]: Without dead ends: 312 [2022-04-07 00:50:28,720 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:28,720 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 704 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:28,720 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 181 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:28,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-04-07 00:50:28,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2022-04-07 00:50:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 305 states have (on average 1.681967213114754) internal successors, (513), 305 states have internal predecessors, (513), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 517 transitions. [2022-04-07 00:50:28,743 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 517 transitions. Word has length 91 [2022-04-07 00:50:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:28,743 INFO L478 AbstractCegarLoop]: Abstraction has 310 states and 517 transitions. [2022-04-07 00:50:28,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:28,744 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 517 transitions. [2022-04-07 00:50:28,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-04-07 00:50:28,744 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:28,744 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:28,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-07 00:50:28,745 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:28,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash -652524645, now seen corresponding path program 1 times [2022-04-07 00:50:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:28,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1971475503] [2022-04-07 00:50:28,748 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:28,749 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash -652524645, now seen corresponding path program 2 times [2022-04-07 00:50:28,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:28,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879615896] [2022-04-07 00:50:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:28,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-04-07 00:50:28,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:28,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879615896] [2022-04-07 00:50:28,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879615896] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:28,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:28,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:28,786 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:28,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1971475503] [2022-04-07 00:50:28,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1971475503] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:28,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:28,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:28,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441867891] [2022-04-07 00:50:28,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:28,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:28,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:28,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:28,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:28,788 INFO L87 Difference]: Start difference. First operand 310 states and 517 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:29,037 INFO L93 Difference]: Finished difference Result 615 states and 1028 transitions. [2022-04-07 00:50:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:29,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 103 [2022-04-07 00:50:29,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:29,039 INFO L225 Difference]: With dead ends: 615 [2022-04-07 00:50:29,039 INFO L226 Difference]: Without dead ends: 319 [2022-04-07 00:50:29,039 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:29,040 INFO L913 BasicCegarLoop]: 165 mSDtfsCounter, 705 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:29,040 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 182 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-04-07 00:50:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2022-04-07 00:50:29,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.6528662420382165) internal successors, (519), 314 states have internal predecessors, (519), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 523 transitions. [2022-04-07 00:50:29,060 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 523 transitions. Word has length 103 [2022-04-07 00:50:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:29,060 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 523 transitions. [2022-04-07 00:50:29,060 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,060 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 523 transitions. [2022-04-07 00:50:29,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-04-07 00:50:29,061 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:29,061 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:29,061 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-07 00:50:29,061 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:29,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:29,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1663251135, now seen corresponding path program 1 times [2022-04-07 00:50:29,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:29,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [52350175] [2022-04-07 00:50:29,064 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:29,064 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:29,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1663251135, now seen corresponding path program 2 times [2022-04-07 00:50:29,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:29,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543196942] [2022-04-07 00:50:29,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:29,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:29,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:29,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543196942] [2022-04-07 00:50:29,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543196942] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:29,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:29,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:29,109 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:29,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [52350175] [2022-04-07 00:50:29,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [52350175] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:29,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:29,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:29,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132516694] [2022-04-07 00:50:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:29,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:29,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:29,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:29,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:29,110 INFO L87 Difference]: Start difference. First operand 319 states and 523 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:29,381 INFO L93 Difference]: Finished difference Result 655 states and 1081 transitions. [2022-04-07 00:50:29,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 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 104 [2022-04-07 00:50:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:29,383 INFO L225 Difference]: With dead ends: 655 [2022-04-07 00:50:29,383 INFO L226 Difference]: Without dead ends: 350 [2022-04-07 00:50:29,384 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 [2022-04-07 00:50:29,384 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 734 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:29,384 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 184 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-04-07 00:50:29,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-04-07 00:50:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 343 states have (on average 1.6501457725947521) internal successors, (566), 343 states have internal predecessors, (566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 570 transitions. [2022-04-07 00:50:29,432 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 570 transitions. Word has length 104 [2022-04-07 00:50:29,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:29,432 INFO L478 AbstractCegarLoop]: Abstraction has 348 states and 570 transitions. [2022-04-07 00:50:29,432 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 570 transitions. [2022-04-07 00:50:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-04-07 00:50:29,433 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:29,433 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:29,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-07 00:50:29,433 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:29,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2045213667, now seen corresponding path program 1 times [2022-04-07 00:50:29,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:29,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [485425892] [2022-04-07 00:50:29,436 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:29,436 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:29,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2045213667, now seen corresponding path program 2 times [2022-04-07 00:50:29,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:29,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417361556] [2022-04-07 00:50:29,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:29,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:29,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:29,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417361556] [2022-04-07 00:50:29,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417361556] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:29,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:29,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:29,470 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:29,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [485425892] [2022-04-07 00:50:29,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [485425892] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:29,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:29,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:29,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954366209] [2022-04-07 00:50:29,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:29,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:29,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:29,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:29,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:29,472 INFO L87 Difference]: Start difference. First operand 348 states and 570 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:29,743 INFO L93 Difference]: Finished difference Result 684 states and 1124 transitions. [2022-04-07 00:50:29,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:29,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 105 [2022-04-07 00:50:29,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:29,745 INFO L225 Difference]: With dead ends: 684 [2022-04-07 00:50:29,745 INFO L226 Difference]: Without dead ends: 350 [2022-04-07 00:50:29,745 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:29,746 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 737 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:29,746 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 184 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-04-07 00:50:29,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-04-07 00:50:29,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 343 states have (on average 1.6384839650145773) internal successors, (562), 343 states have internal predecessors, (562), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 566 transitions. [2022-04-07 00:50:29,771 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 566 transitions. Word has length 105 [2022-04-07 00:50:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:29,771 INFO L478 AbstractCegarLoop]: Abstraction has 348 states and 566 transitions. [2022-04-07 00:50:29,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 566 transitions. [2022-04-07 00:50:29,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-04-07 00:50:29,772 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:29,773 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:29,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-07 00:50:29,773 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:29,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:29,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1753813501, now seen corresponding path program 1 times [2022-04-07 00:50:29,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:29,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [222163954] [2022-04-07 00:50:29,776 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:29,776 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:29,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1753813501, now seen corresponding path program 2 times [2022-04-07 00:50:29,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:29,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812632920] [2022-04-07 00:50:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:29,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:29,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:29,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812632920] [2022-04-07 00:50:29,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812632920] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:29,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:29,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:29,815 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:29,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [222163954] [2022-04-07 00:50:29,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [222163954] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:29,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:29,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305557896] [2022-04-07 00:50:29,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:29,816 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:29,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:29,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:29,816 INFO L87 Difference]: Start difference. First operand 348 states and 566 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:30,097 INFO L93 Difference]: Finished difference Result 718 states and 1176 transitions. [2022-04-07 00:50:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 107 [2022-04-07 00:50:30,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:30,099 INFO L225 Difference]: With dead ends: 718 [2022-04-07 00:50:30,099 INFO L226 Difference]: Without dead ends: 384 [2022-04-07 00:50:30,100 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:30,101 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:30,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 184 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:30,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-04-07 00:50:30,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 375. [2022-04-07 00:50:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.6324324324324324) internal successors, (604), 370 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 608 transitions. [2022-04-07 00:50:30,148 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 608 transitions. Word has length 107 [2022-04-07 00:50:30,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:30,148 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 608 transitions. [2022-04-07 00:50:30,148 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,148 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 608 transitions. [2022-04-07 00:50:30,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-04-07 00:50:30,149 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:30,149 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:30,149 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-07 00:50:30,149 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:30,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:30,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1394620857, now seen corresponding path program 1 times [2022-04-07 00:50:30,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:30,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1249969619] [2022-04-07 00:50:30,152 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:30,153 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:30,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1394620857, now seen corresponding path program 2 times [2022-04-07 00:50:30,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:30,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359627114] [2022-04-07 00:50:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:30,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:30,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:30,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359627114] [2022-04-07 00:50:30,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359627114] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:30,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:30,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:30,189 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:30,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1249969619] [2022-04-07 00:50:30,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1249969619] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:30,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:30,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:30,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812074247] [2022-04-07 00:50:30,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:30,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:30,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:30,191 INFO L87 Difference]: Start difference. First operand 375 states and 608 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:30,466 INFO L93 Difference]: Finished difference Result 745 states and 1213 transitions. [2022-04-07 00:50:30,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:30,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 108 [2022-04-07 00:50:30,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:30,468 INFO L225 Difference]: With dead ends: 745 [2022-04-07 00:50:30,468 INFO L226 Difference]: Without dead ends: 384 [2022-04-07 00:50:30,469 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:30,470 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 757 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:30,470 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [757 Valid, 184 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-04-07 00:50:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 375. [2022-04-07 00:50:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.6189189189189188) internal successors, (599), 370 states have internal predecessors, (599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 603 transitions. [2022-04-07 00:50:30,503 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 603 transitions. Word has length 108 [2022-04-07 00:50:30,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:30,503 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 603 transitions. [2022-04-07 00:50:30,503 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 603 transitions. [2022-04-07 00:50:30,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-04-07 00:50:30,504 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:30,504 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:30,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-07 00:50:30,504 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:30,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:30,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1654621179, now seen corresponding path program 1 times [2022-04-07 00:50:30,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:30,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [862211664] [2022-04-07 00:50:30,509 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:30,510 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1654621179, now seen corresponding path program 2 times [2022-04-07 00:50:30,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:30,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329650262] [2022-04-07 00:50:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:30,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-04-07 00:50:30,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:30,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329650262] [2022-04-07 00:50:30,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329650262] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:30,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:30,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:30,555 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:30,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [862211664] [2022-04-07 00:50:30,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [862211664] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:30,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:30,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:30,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792834359] [2022-04-07 00:50:30,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:30,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:30,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:30,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:30,556 INFO L87 Difference]: Start difference. First operand 375 states and 603 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:30,870 INFO L93 Difference]: Finished difference Result 773 states and 1248 transitions. [2022-04-07 00:50:30,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:30,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 116 [2022-04-07 00:50:30,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:30,872 INFO L225 Difference]: With dead ends: 773 [2022-04-07 00:50:30,872 INFO L226 Difference]: Without dead ends: 412 [2022-04-07 00:50:30,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:30,874 INFO L913 BasicCegarLoop]: 169 mSDtfsCounter, 747 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:30,874 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 186 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:30,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-04-07 00:50:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 409. [2022-04-07 00:50:30,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 404 states have (on average 1.613861386138614) internal successors, (652), 404 states have internal predecessors, (652), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 656 transitions. [2022-04-07 00:50:30,912 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 656 transitions. Word has length 116 [2022-04-07 00:50:30,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:30,912 INFO L478 AbstractCegarLoop]: Abstraction has 409 states and 656 transitions. [2022-04-07 00:50:30,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 656 transitions. [2022-04-07 00:50:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-07 00:50:30,913 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:30,913 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:30,913 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-07 00:50:30,913 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash -406943172, now seen corresponding path program 1 times [2022-04-07 00:50:30,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:30,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1239539982] [2022-04-07 00:50:30,918 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:30,919 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:30,919 INFO L85 PathProgramCache]: Analyzing trace with hash -406943172, now seen corresponding path program 2 times [2022-04-07 00:50:30,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:30,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007328491] [2022-04-07 00:50:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:30,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:30,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-04-07 00:50:30,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:30,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007328491] [2022-04-07 00:50:30,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007328491] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:30,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:30,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:30,962 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:30,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1239539982] [2022-04-07 00:50:30,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1239539982] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:30,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:30,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:30,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357034274] [2022-04-07 00:50:30,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:30,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:30,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:30,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:30,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:30,964 INFO L87 Difference]: Start difference. First operand 409 states and 656 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:31,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:31,247 INFO L93 Difference]: Finished difference Result 807 states and 1298 transitions. [2022-04-07 00:50:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 117 [2022-04-07 00:50:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:31,249 INFO L225 Difference]: With dead ends: 807 [2022-04-07 00:50:31,249 INFO L226 Difference]: Without dead ends: 412 [2022-04-07 00:50:31,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:31,251 INFO L913 BasicCegarLoop]: 169 mSDtfsCounter, 750 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:31,251 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 186 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-04-07 00:50:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 409. [2022-04-07 00:50:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 404 states have (on average 1.6064356435643565) internal successors, (649), 404 states have internal predecessors, (649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 653 transitions. [2022-04-07 00:50:31,288 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 653 transitions. Word has length 117 [2022-04-07 00:50:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:31,288 INFO L478 AbstractCegarLoop]: Abstraction has 409 states and 653 transitions. [2022-04-07 00:50:31,289 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 653 transitions. [2022-04-07 00:50:31,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-04-07 00:50:31,290 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:31,290 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:31,290 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-07 00:50:31,290 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:31,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:31,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1046988553, now seen corresponding path program 1 times [2022-04-07 00:50:31,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:31,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [325628436] [2022-04-07 00:50:31,295 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:31,295 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1046988553, now seen corresponding path program 2 times [2022-04-07 00:50:31,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:31,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465725810] [2022-04-07 00:50:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:31,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:31,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:31,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465725810] [2022-04-07 00:50:31,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465725810] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:31,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:31,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:31,363 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:31,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [325628436] [2022-04-07 00:50:31,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [325628436] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:31,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:31,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:31,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540222627] [2022-04-07 00:50:31,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:31,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:31,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:31,364 INFO L87 Difference]: Start difference. First operand 409 states and 653 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:31,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:31,684 INFO L93 Difference]: Finished difference Result 852 states and 1364 transitions. [2022-04-07 00:50:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 120 [2022-04-07 00:50:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:31,686 INFO L225 Difference]: With dead ends: 852 [2022-04-07 00:50:31,686 INFO L226 Difference]: Without dead ends: 457 [2022-04-07 00:50:31,688 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:31,689 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 770 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:31,689 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [770 Valid, 190 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:31,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-04-07 00:50:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 451. [2022-04-07 00:50:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.600896860986547) internal successors, (714), 446 states have internal predecessors, (714), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 718 transitions. [2022-04-07 00:50:31,732 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 718 transitions. Word has length 120 [2022-04-07 00:50:31,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:31,732 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 718 transitions. [2022-04-07 00:50:31,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 718 transitions. [2022-04-07 00:50:31,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-04-07 00:50:31,734 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:31,734 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:31,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-07 00:50:31,734 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:31,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:31,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1554968274, now seen corresponding path program 1 times [2022-04-07 00:50:31,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:31,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [582499155] [2022-04-07 00:50:31,737 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:31,737 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:31,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1554968274, now seen corresponding path program 2 times [2022-04-07 00:50:31,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:31,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974723213] [2022-04-07 00:50:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-07 00:50:31,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:31,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974723213] [2022-04-07 00:50:31,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974723213] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:31,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:31,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:31,776 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:31,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [582499155] [2022-04-07 00:50:31,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [582499155] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:31,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:31,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:31,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647677424] [2022-04-07 00:50:31,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:31,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:31,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:31,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:31,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:31,777 INFO L87 Difference]: Start difference. First operand 451 states and 718 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:32,079 INFO L93 Difference]: Finished difference Result 898 states and 1435 transitions. [2022-04-07 00:50:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:32,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 121 [2022-04-07 00:50:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:32,081 INFO L225 Difference]: With dead ends: 898 [2022-04-07 00:50:32,081 INFO L226 Difference]: Without dead ends: 459 [2022-04-07 00:50:32,082 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:32,082 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 772 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:32,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [772 Valid, 190 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:32,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-04-07 00:50:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 453. [2022-04-07 00:50:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.6004464285714286) internal successors, (717), 448 states have internal predecessors, (717), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 721 transitions. [2022-04-07 00:50:32,148 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 721 transitions. Word has length 121 [2022-04-07 00:50:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:32,148 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 721 transitions. [2022-04-07 00:50:32,148 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,148 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 721 transitions. [2022-04-07 00:50:32,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-07 00:50:32,149 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:32,149 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:32,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-07 00:50:32,150 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:32,150 INFO L85 PathProgramCache]: Analyzing trace with hash -181903955, now seen corresponding path program 1 times [2022-04-07 00:50:32,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:32,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [826307942] [2022-04-07 00:50:32,154 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:32,154 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:32,154 INFO L85 PathProgramCache]: Analyzing trace with hash -181903955, now seen corresponding path program 2 times [2022-04-07 00:50:32,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:32,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462508288] [2022-04-07 00:50:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:32,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-04-07 00:50:32,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:32,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462508288] [2022-04-07 00:50:32,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462508288] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:32,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:32,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:32,189 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:32,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [826307942] [2022-04-07 00:50:32,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [826307942] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:32,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:32,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:32,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59400161] [2022-04-07 00:50:32,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:32,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:32,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:32,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:32,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:32,191 INFO L87 Difference]: Start difference. First operand 453 states and 721 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:32,498 INFO L93 Difference]: Finished difference Result 931 states and 1490 transitions. [2022-04-07 00:50:32,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:32,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 133 [2022-04-07 00:50:32,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:32,501 INFO L225 Difference]: With dead ends: 931 [2022-04-07 00:50:32,501 INFO L226 Difference]: Without dead ends: 492 [2022-04-07 00:50:32,501 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:32,502 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 764 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:32,502 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [764 Valid, 184 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:32,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-04-07 00:50:32,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 478. [2022-04-07 00:50:32,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5898520084566596) internal successors, (752), 473 states have internal predecessors, (752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 756 transitions. [2022-04-07 00:50:32,556 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 756 transitions. Word has length 133 [2022-04-07 00:50:32,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:32,556 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 756 transitions. [2022-04-07 00:50:32,557 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,557 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 756 transitions. [2022-04-07 00:50:32,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-07 00:50:32,558 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:32,558 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:32,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-07 00:50:32,558 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:32,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:32,558 INFO L85 PathProgramCache]: Analyzing trace with hash -43727471, now seen corresponding path program 1 times [2022-04-07 00:50:32,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:32,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1497199499] [2022-04-07 00:50:32,562 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:32,562 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:32,562 INFO L85 PathProgramCache]: Analyzing trace with hash -43727471, now seen corresponding path program 2 times [2022-04-07 00:50:32,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:32,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761425688] [2022-04-07 00:50:32,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:32,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-04-07 00:50:32,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:32,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761425688] [2022-04-07 00:50:32,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761425688] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:32,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:32,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:32,594 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:32,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1497199499] [2022-04-07 00:50:32,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1497199499] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:32,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:32,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:32,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234238564] [2022-04-07 00:50:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:32,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:32,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:32,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:32,595 INFO L87 Difference]: Start difference. First operand 478 states and 756 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:32,928 INFO L93 Difference]: Finished difference Result 956 states and 1517 transitions. [2022-04-07 00:50:32,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:32,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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 134 [2022-04-07 00:50:32,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:32,930 INFO L225 Difference]: With dead ends: 956 [2022-04-07 00:50:32,930 INFO L226 Difference]: Without dead ends: 492 [2022-04-07 00:50:32,931 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:32,931 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:32,931 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 184 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:32,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-04-07 00:50:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 478. [2022-04-07 00:50:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.572938689217759) internal successors, (744), 473 states have internal predecessors, (744), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 748 transitions. [2022-04-07 00:50:32,988 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 748 transitions. Word has length 134 [2022-04-07 00:50:32,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:32,989 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 748 transitions. [2022-04-07 00:50:32,989 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:32,989 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 748 transitions. [2022-04-07 00:50:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-07 00:50:32,990 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:32,990 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:32,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-07 00:50:32,990 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1588618230, now seen corresponding path program 1 times [2022-04-07 00:50:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1751936338] [2022-04-07 00:50:32,994 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:32,995 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:32,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1588618230, now seen corresponding path program 2 times [2022-04-07 00:50:32,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:32,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167014304] [2022-04-07 00:50:32,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:32,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-04-07 00:50:33,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:33,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167014304] [2022-04-07 00:50:33,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167014304] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:33,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:33,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:33,028 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:33,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1751936338] [2022-04-07 00:50:33,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1751936338] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:33,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:33,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:33,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149547379] [2022-04-07 00:50:33,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:33,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:33,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:33,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:33,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:33,030 INFO L87 Difference]: Start difference. First operand 478 states and 748 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:33,386 INFO L93 Difference]: Finished difference Result 948 states and 1487 transitions. [2022-04-07 00:50:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:33,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 149 [2022-04-07 00:50:33,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:33,388 INFO L225 Difference]: With dead ends: 948 [2022-04-07 00:50:33,388 INFO L226 Difference]: Without dead ends: 484 [2022-04-07 00:50:33,390 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:33,391 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 748 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:33,391 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 187 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-04-07 00:50:33,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 478. [2022-04-07 00:50:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.562367864693446) internal successors, (739), 473 states have internal predecessors, (739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 743 transitions. [2022-04-07 00:50:33,450 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 743 transitions. Word has length 149 [2022-04-07 00:50:33,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:33,450 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 743 transitions. [2022-04-07 00:50:33,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 743 transitions. [2022-04-07 00:50:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-07 00:50:33,452 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:33,452 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:33,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-07 00:50:33,453 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:33,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash 679184403, now seen corresponding path program 1 times [2022-04-07 00:50:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:33,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1541743913] [2022-04-07 00:50:33,458 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:33,458 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:33,458 INFO L85 PathProgramCache]: Analyzing trace with hash 679184403, now seen corresponding path program 2 times [2022-04-07 00:50:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:33,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508758038] [2022-04-07 00:50:33,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:33,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-04-07 00:50:33,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:33,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508758038] [2022-04-07 00:50:33,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508758038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:33,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:33,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:33,504 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:33,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1541743913] [2022-04-07 00:50:33,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1541743913] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:33,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:33,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:33,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427773690] [2022-04-07 00:50:33,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:33,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:33,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:33,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:33,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:33,506 INFO L87 Difference]: Start difference. First operand 478 states and 743 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:33,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:33,818 INFO L93 Difference]: Finished difference Result 948 states and 1477 transitions. [2022-04-07 00:50:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:33,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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 150 [2022-04-07 00:50:33,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:33,820 INFO L225 Difference]: With dead ends: 948 [2022-04-07 00:50:33,820 INFO L226 Difference]: Without dead ends: 484 [2022-04-07 00:50:33,821 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:33,822 INFO L913 BasicCegarLoop]: 171 mSDtfsCounter, 748 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:33,822 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 188 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:33,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-04-07 00:50:33,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 478. [2022-04-07 00:50:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5517970401691332) internal successors, (734), 473 states have internal predecessors, (734), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 738 transitions. [2022-04-07 00:50:33,903 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 738 transitions. Word has length 150 [2022-04-07 00:50:33,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:33,903 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 738 transitions. [2022-04-07 00:50:33,903 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 738 transitions. [2022-04-07 00:50:33,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-07 00:50:33,904 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:33,905 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:33,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-07 00:50:33,905 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1708500569, now seen corresponding path program 1 times [2022-04-07 00:50:33,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:33,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [266663701] [2022-04-07 00:50:33,911 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:33,911 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:33,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1708500569, now seen corresponding path program 2 times [2022-04-07 00:50:33,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:33,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216451014] [2022-04-07 00:50:33,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:33,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-04-07 00:50:33,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:33,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216451014] [2022-04-07 00:50:33,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216451014] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:33,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:33,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:33,955 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:33,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [266663701] [2022-04-07 00:50:33,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [266663701] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:33,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:33,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:33,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188450844] [2022-04-07 00:50:33,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:33,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:33,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:33,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:33,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:33,957 INFO L87 Difference]: Start difference. First operand 478 states and 738 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:34,267 INFO L93 Difference]: Finished difference Result 971 states and 1505 transitions. [2022-04-07 00:50:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:34,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 154 [2022-04-07 00:50:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:34,270 INFO L225 Difference]: With dead ends: 971 [2022-04-07 00:50:34,270 INFO L226 Difference]: Without dead ends: 507 [2022-04-07 00:50:34,271 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:34,271 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 728 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:34,271 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 184 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:34,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-04-07 00:50:34,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 502. [2022-04-07 00:50:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.539235412474849) internal successors, (765), 497 states have internal predecessors, (765), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 769 transitions. [2022-04-07 00:50:34,336 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 769 transitions. Word has length 154 [2022-04-07 00:50:34,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:34,336 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 769 transitions. [2022-04-07 00:50:34,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:34,336 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 769 transitions. [2022-04-07 00:50:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-07 00:50:34,337 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:34,338 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:34,338 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-07 00:50:34,338 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:34,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:34,338 INFO L85 PathProgramCache]: Analyzing trace with hash -509967275, now seen corresponding path program 1 times [2022-04-07 00:50:34,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:34,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [949125752] [2022-04-07 00:50:34,343 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:34,344 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash -509967275, now seen corresponding path program 2 times [2022-04-07 00:50:34,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:34,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003434594] [2022-04-07 00:50:34,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:34,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-04-07 00:50:34,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:34,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003434594] [2022-04-07 00:50:34,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003434594] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:34,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:34,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:34,380 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:34,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [949125752] [2022-04-07 00:50:34,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [949125752] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:34,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:34,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:34,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672793052] [2022-04-07 00:50:34,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:34,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:34,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:34,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:34,382 INFO L87 Difference]: Start difference. First operand 502 states and 769 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:34,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:34,700 INFO L93 Difference]: Finished difference Result 995 states and 1527 transitions. [2022-04-07 00:50:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:34,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 155 [2022-04-07 00:50:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:34,705 INFO L225 Difference]: With dead ends: 995 [2022-04-07 00:50:34,705 INFO L226 Difference]: Without dead ends: 507 [2022-04-07 00:50:34,706 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:34,707 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 729 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:34,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 184 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:34,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-04-07 00:50:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 502. [2022-04-07 00:50:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5211267605633803) internal successors, (756), 497 states have internal predecessors, (756), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 760 transitions. [2022-04-07 00:50:34,771 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 760 transitions. Word has length 155 [2022-04-07 00:50:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:34,772 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 760 transitions. [2022-04-07 00:50:34,772 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 760 transitions. [2022-04-07 00:50:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-04-07 00:50:34,773 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:34,773 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:34,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-07 00:50:34,773 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1062089038, now seen corresponding path program 1 times [2022-04-07 00:50:34,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:34,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [755332437] [2022-04-07 00:50:34,777 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:34,777 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:34,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1062089038, now seen corresponding path program 2 times [2022-04-07 00:50:34,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:34,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312988353] [2022-04-07 00:50:34,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:34,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-04-07 00:50:34,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:34,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312988353] [2022-04-07 00:50:34,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312988353] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:34,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:34,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:34,811 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:34,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [755332437] [2022-04-07 00:50:34,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [755332437] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:34,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:34,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:34,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442722904] [2022-04-07 00:50:34,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:34,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:34,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:34,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:34,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:34,813 INFO L87 Difference]: Start difference. First operand 502 states and 760 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:35,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:35,136 INFO L93 Difference]: Finished difference Result 1038 states and 1570 transitions. [2022-04-07 00:50:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:35,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 160 [2022-04-07 00:50:35,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:35,138 INFO L225 Difference]: With dead ends: 1038 [2022-04-07 00:50:35,139 INFO L226 Difference]: Without dead ends: 550 [2022-04-07 00:50:35,140 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:35,140 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 751 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:35,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 197 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-04-07 00:50:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 543. [2022-04-07 00:50:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 538 states have (on average 1.5074349442379182) internal successors, (811), 538 states have internal predecessors, (811), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 815 transitions. [2022-04-07 00:50:35,236 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 815 transitions. Word has length 160 [2022-04-07 00:50:35,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:35,236 INFO L478 AbstractCegarLoop]: Abstraction has 543 states and 815 transitions. [2022-04-07 00:50:35,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:35,236 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 815 transitions. [2022-04-07 00:50:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-04-07 00:50:35,238 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:35,238 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:35,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-07 00:50:35,238 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:35,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:35,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1688268663, now seen corresponding path program 1 times [2022-04-07 00:50:35,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:35,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1712419202] [2022-04-07 00:50:35,242 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:35,242 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:35,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1688268663, now seen corresponding path program 2 times [2022-04-07 00:50:35,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:35,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576427858] [2022-04-07 00:50:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:35,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-04-07 00:50:35,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:35,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576427858] [2022-04-07 00:50:35,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576427858] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:35,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:35,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:35,281 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:35,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1712419202] [2022-04-07 00:50:35,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1712419202] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:35,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:35,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:35,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854749001] [2022-04-07 00:50:35,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:35,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:35,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:35,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:35,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:35,282 INFO L87 Difference]: Start difference. First operand 543 states and 815 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:35,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:35,641 INFO L93 Difference]: Finished difference Result 1079 states and 1623 transitions. [2022-04-07 00:50:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:35,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 161 [2022-04-07 00:50:35,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:35,643 INFO L225 Difference]: With dead ends: 1079 [2022-04-07 00:50:35,643 INFO L226 Difference]: Without dead ends: 531 [2022-04-07 00:50:35,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:35,645 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 752 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:35,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 196 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-04-07 00:50:35,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 524. [2022-04-07 00:50:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 519 states have (on average 1.5048169556840076) internal successors, (781), 519 states have internal predecessors, (781), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 785 transitions. [2022-04-07 00:50:35,722 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 785 transitions. Word has length 161 [2022-04-07 00:50:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:35,722 INFO L478 AbstractCegarLoop]: Abstraction has 524 states and 785 transitions. [2022-04-07 00:50:35,723 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 785 transitions. [2022-04-07 00:50:35,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-07 00:50:35,724 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:35,724 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:35,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-07 00:50:35,724 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2105509497, now seen corresponding path program 1 times [2022-04-07 00:50:35,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:35,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [421176782] [2022-04-07 00:50:35,731 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:35,731 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2105509497, now seen corresponding path program 2 times [2022-04-07 00:50:35,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:35,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657290586] [2022-04-07 00:50:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:35,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:35,765 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-04-07 00:50:35,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:35,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657290586] [2022-04-07 00:50:35,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657290586] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:35,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:35,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:35,766 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:35,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [421176782] [2022-04-07 00:50:35,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [421176782] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:35,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:35,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:35,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67016487] [2022-04-07 00:50:35,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:35,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:35,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:35,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:35,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:35,767 INFO L87 Difference]: Start difference. First operand 524 states and 785 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:36,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:36,101 INFO L93 Difference]: Finished difference Result 1059 states and 1593 transitions. [2022-04-07 00:50:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 175 [2022-04-07 00:50:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:36,104 INFO L225 Difference]: With dead ends: 1059 [2022-04-07 00:50:36,104 INFO L226 Difference]: Without dead ends: 549 [2022-04-07 00:50:36,105 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:36,105 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 718 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:36,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 184 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:36,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-04-07 00:50:36,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 545. [2022-04-07 00:50:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4907407407407407) internal successors, (805), 540 states have internal predecessors, (805), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 809 transitions. [2022-04-07 00:50:36,196 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 809 transitions. Word has length 175 [2022-04-07 00:50:36,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:36,196 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 809 transitions. [2022-04-07 00:50:36,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:36,197 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 809 transitions. [2022-04-07 00:50:36,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-04-07 00:50:36,198 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:36,199 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:36,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-07 00:50:36,199 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:36,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:36,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1880456547, now seen corresponding path program 1 times [2022-04-07 00:50:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:36,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2094717788] [2022-04-07 00:50:36,204 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:36,204 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:36,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1880456547, now seen corresponding path program 2 times [2022-04-07 00:50:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:36,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480584157] [2022-04-07 00:50:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:36,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-04-07 00:50:36,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:36,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480584157] [2022-04-07 00:50:36,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480584157] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:36,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:36,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:36,247 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:36,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2094717788] [2022-04-07 00:50:36,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2094717788] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:36,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:36,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:36,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946486984] [2022-04-07 00:50:36,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:36,248 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:36,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:36,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:36,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:36,249 INFO L87 Difference]: Start difference. First operand 545 states and 809 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:36,642 INFO L93 Difference]: Finished difference Result 1080 states and 1606 transitions. [2022-04-07 00:50:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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 176 [2022-04-07 00:50:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:36,645 INFO L225 Difference]: With dead ends: 1080 [2022-04-07 00:50:36,645 INFO L226 Difference]: Without dead ends: 547 [2022-04-07 00:50:36,646 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:36,647 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 721 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:36,647 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 184 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:50:36,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-04-07 00:50:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 543. [2022-04-07 00:50:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 538 states have (on average 1.470260223048327) internal successors, (791), 538 states have internal predecessors, (791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 795 transitions. [2022-04-07 00:50:36,774 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 795 transitions. Word has length 176 [2022-04-07 00:50:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:36,774 INFO L478 AbstractCegarLoop]: Abstraction has 543 states and 795 transitions. [2022-04-07 00:50:36,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 795 transitions. [2022-04-07 00:50:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-04-07 00:50:36,775 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:36,776 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:36,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-07 00:50:36,776 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash 491902394, now seen corresponding path program 1 times [2022-04-07 00:50:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:36,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [169653928] [2022-04-07 00:50:36,781 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:36,782 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:36,782 INFO L85 PathProgramCache]: Analyzing trace with hash 491902394, now seen corresponding path program 2 times [2022-04-07 00:50:36,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:36,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895757703] [2022-04-07 00:50:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:36,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-07 00:50:36,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:36,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895757703] [2022-04-07 00:50:36,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895757703] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:36,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:36,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:36,822 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:36,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [169653928] [2022-04-07 00:50:36,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [169653928] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:36,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:36,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:36,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539040830] [2022-04-07 00:50:36,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:36,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:36,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:36,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:36,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:36,824 INFO L87 Difference]: Start difference. First operand 543 states and 795 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:37,214 INFO L93 Difference]: Finished difference Result 1598 states and 2347 transitions. [2022-04-07 00:50:37,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:37,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 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 191 [2022-04-07 00:50:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:37,219 INFO L225 Difference]: With dead ends: 1598 [2022-04-07 00:50:37,219 INFO L226 Difference]: Without dead ends: 1069 [2022-04-07 00:50:37,220 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:37,220 INFO L913 BasicCegarLoop]: 284 mSDtfsCounter, 505 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:37,221 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 291 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2022-04-07 00:50:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1069. [2022-04-07 00:50:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1064 states have (on average 1.4511278195488722) internal successors, (1544), 1064 states have internal predecessors, (1544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1548 transitions. [2022-04-07 00:50:37,401 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1548 transitions. Word has length 191 [2022-04-07 00:50:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:37,402 INFO L478 AbstractCegarLoop]: Abstraction has 1069 states and 1548 transitions. [2022-04-07 00:50:37,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1548 transitions. [2022-04-07 00:50:37,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-04-07 00:50:37,404 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:37,404 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:37,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-07 00:50:37,405 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:37,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash 227254904, now seen corresponding path program 1 times [2022-04-07 00:50:37,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:37,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [671849480] [2022-04-07 00:50:37,419 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:37,420 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash 227254904, now seen corresponding path program 2 times [2022-04-07 00:50:37,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:37,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525627823] [2022-04-07 00:50:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:37,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:37,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-04-07 00:50:37,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:37,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525627823] [2022-04-07 00:50:37,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525627823] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:37,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:37,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:37,447 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:37,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [671849480] [2022-04-07 00:50:37,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [671849480] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:37,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:37,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:37,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56893760] [2022-04-07 00:50:37,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:37,447 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:37,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:37,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:37,448 INFO L87 Difference]: Start difference. First operand 1069 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:37,806 INFO L93 Difference]: Finished difference Result 2181 states and 3164 transitions. [2022-04-07 00:50:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:37,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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 191 [2022-04-07 00:50:37,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:37,809 INFO L225 Difference]: With dead ends: 2181 [2022-04-07 00:50:37,809 INFO L226 Difference]: Without dead ends: 1126 [2022-04-07 00:50:37,811 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:37,811 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 267 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:37,812 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 288 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-04-07 00:50:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2022-04-07 00:50:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1121 states have (on average 1.4522747546833186) internal successors, (1628), 1121 states have internal predecessors, (1628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1632 transitions. [2022-04-07 00:50:37,982 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1632 transitions. Word has length 191 [2022-04-07 00:50:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:37,982 INFO L478 AbstractCegarLoop]: Abstraction has 1126 states and 1632 transitions. [2022-04-07 00:50:37,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1632 transitions. [2022-04-07 00:50:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-04-07 00:50:37,985 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:37,985 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:37,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-07 00:50:37,985 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:37,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:37,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1180471046, now seen corresponding path program 1 times [2022-04-07 00:50:37,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:37,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1183175150] [2022-04-07 00:50:37,990 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:37,990 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:37,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1180471046, now seen corresponding path program 2 times [2022-04-07 00:50:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:37,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234794255] [2022-04-07 00:50:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:37,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:38,013 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-04-07 00:50:38,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:38,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234794255] [2022-04-07 00:50:38,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234794255] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:38,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:38,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:38,014 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:38,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1183175150] [2022-04-07 00:50:38,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1183175150] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:38,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:38,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:38,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909717830] [2022-04-07 00:50:38,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:38,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:38,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:38,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:38,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:38,015 INFO L87 Difference]: Start difference. First operand 1126 states and 1632 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:38,361 INFO L93 Difference]: Finished difference Result 2271 states and 3294 transitions. [2022-04-07 00:50:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:38,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 191 [2022-04-07 00:50:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:38,364 INFO L225 Difference]: With dead ends: 2271 [2022-04-07 00:50:38,364 INFO L226 Difference]: Without dead ends: 1159 [2022-04-07 00:50:38,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:38,367 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 316 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:38,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 242 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-04-07 00:50:38,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2022-04-07 00:50:38,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1154 states have (on average 1.451473136915078) internal successors, (1675), 1154 states have internal predecessors, (1675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:38,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1679 transitions. [2022-04-07 00:50:38,555 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1679 transitions. Word has length 191 [2022-04-07 00:50:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:38,555 INFO L478 AbstractCegarLoop]: Abstraction has 1159 states and 1679 transitions. [2022-04-07 00:50:38,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1679 transitions. [2022-04-07 00:50:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-04-07 00:50:38,557 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:38,557 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:38,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-07 00:50:38,558 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:38,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1156602436, now seen corresponding path program 1 times [2022-04-07 00:50:38,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:38,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1715993000] [2022-04-07 00:50:38,563 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:38,563 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1156602436, now seen corresponding path program 2 times [2022-04-07 00:50:38,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:38,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108099606] [2022-04-07 00:50:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:38,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-04-07 00:50:38,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:38,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108099606] [2022-04-07 00:50:38,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108099606] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:38,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:38,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:38,595 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:38,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1715993000] [2022-04-07 00:50:38,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1715993000] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:38,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:38,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:38,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097301597] [2022-04-07 00:50:38,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:38,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:38,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:38,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:38,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:38,597 INFO L87 Difference]: Start difference. First operand 1159 states and 1679 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:39,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:39,170 INFO L93 Difference]: Finished difference Result 2797 states and 4068 transitions. [2022-04-07 00:50:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:39,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 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 193 [2022-04-07 00:50:39,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:39,175 INFO L225 Difference]: With dead ends: 2797 [2022-04-07 00:50:39,175 INFO L226 Difference]: Without dead ends: 1685 [2022-04-07 00:50:39,177 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:39,177 INFO L913 BasicCegarLoop]: 405 mSDtfsCounter, 389 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:39,178 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 412 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2022-04-07 00:50:39,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2022-04-07 00:50:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1680 states have (on average 1.4452380952380952) internal successors, (2428), 1680 states have internal predecessors, (2428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2432 transitions. [2022-04-07 00:50:39,447 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2432 transitions. Word has length 193 [2022-04-07 00:50:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:39,447 INFO L478 AbstractCegarLoop]: Abstraction has 1685 states and 2432 transitions. [2022-04-07 00:50:39,447 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:39,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2432 transitions. [2022-04-07 00:50:39,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-04-07 00:50:39,449 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:39,450 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:39,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-07 00:50:39,450 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:39,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1775225849, now seen corresponding path program 1 times [2022-04-07 00:50:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:39,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1400838702] [2022-04-07 00:50:39,455 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:39,455 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:39,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1775225849, now seen corresponding path program 2 times [2022-04-07 00:50:39,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:39,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448764066] [2022-04-07 00:50:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:39,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:39,481 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-04-07 00:50:39,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:39,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448764066] [2022-04-07 00:50:39,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448764066] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:39,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:39,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:39,482 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:39,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1400838702] [2022-04-07 00:50:39,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1400838702] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:39,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:39,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:39,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212178912] [2022-04-07 00:50:39,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:39,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:39,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:39,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:39,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:39,483 INFO L87 Difference]: Start difference. First operand 1685 states and 2432 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:40,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:40,251 INFO L93 Difference]: Finished difference Result 4912 states and 7086 transitions. [2022-04-07 00:50:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:40,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 194 [2022-04-07 00:50:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:40,260 INFO L225 Difference]: With dead ends: 4912 [2022-04-07 00:50:40,260 INFO L226 Difference]: Without dead ends: 3274 [2022-04-07 00:50:40,262 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:40,263 INFO L913 BasicCegarLoop]: 372 mSDtfsCounter, 512 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:40,263 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 379 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2022-04-07 00:50:40,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 1688. [2022-04-07 00:50:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1688 states, 1683 states have (on average 1.4444444444444444) internal successors, (2431), 1683 states have internal predecessors, (2431), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2435 transitions. [2022-04-07 00:50:40,630 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2435 transitions. Word has length 194 [2022-04-07 00:50:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:40,631 INFO L478 AbstractCegarLoop]: Abstraction has 1688 states and 2435 transitions. [2022-04-07 00:50:40,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:40,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2435 transitions. [2022-04-07 00:50:40,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-04-07 00:50:40,633 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:40,633 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:40,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-07 00:50:40,634 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash 258168197, now seen corresponding path program 1 times [2022-04-07 00:50:40,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:40,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [18001238] [2022-04-07 00:50:40,638 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:40,639 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:40,639 INFO L85 PathProgramCache]: Analyzing trace with hash 258168197, now seen corresponding path program 2 times [2022-04-07 00:50:40,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:40,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884922016] [2022-04-07 00:50:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:40,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:40,672 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-04-07 00:50:40,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:40,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884922016] [2022-04-07 00:50:40,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884922016] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 00:50:40,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29668190] [2022-04-07 00:50:40,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 00:50:40,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:50:40,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:50:40,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 00:50:40,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 00:50:40,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 00:50:40,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 00:50:40,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-07 00:50:40,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 00:50:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-04-07 00:50:41,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 00:50:41,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29668190] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:41,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 00:50:41,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-07 00:50:41,282 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:41,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [18001238] [2022-04-07 00:50:41,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [18001238] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:41,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:41,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 00:50:41,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868130938] [2022-04-07 00:50:41,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:41,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 00:50:41,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:41,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 00:50:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:41,284 INFO L87 Difference]: Start difference. First operand 1688 states and 2435 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:41,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:41,930 INFO L93 Difference]: Finished difference Result 3857 states and 5582 transitions. [2022-04-07 00:50:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 00:50:41,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 1 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 194 [2022-04-07 00:50:41,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:41,936 INFO L225 Difference]: With dead ends: 3857 [2022-04-07 00:50:41,936 INFO L226 Difference]: Without dead ends: 2216 [2022-04-07 00:50:41,939 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:41,940 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 163 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:41,940 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 389 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:41,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2022-04-07 00:50:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2216. [2022-04-07 00:50:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 2211 states have (on average 1.4436906377204886) internal successors, (3192), 2211 states have internal predecessors, (3192), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3196 transitions. [2022-04-07 00:50:42,425 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3196 transitions. Word has length 194 [2022-04-07 00:50:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:42,426 INFO L478 AbstractCegarLoop]: Abstraction has 2216 states and 3196 transitions. [2022-04-07 00:50:42,426 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3196 transitions. [2022-04-07 00:50:42,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-04-07 00:50:42,429 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:42,429 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:42,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-07 00:50:42,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-04-07 00:50:42,647 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:42,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1973077742, now seen corresponding path program 1 times [2022-04-07 00:50:42,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:42,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [92741856] [2022-04-07 00:50:42,670 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:42,670 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1973077742, now seen corresponding path program 2 times [2022-04-07 00:50:42,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:42,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929145291] [2022-04-07 00:50:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:42,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2022-04-07 00:50:42,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:42,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929145291] [2022-04-07 00:50:42,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929145291] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:42,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:42,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:42,732 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:42,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [92741856] [2022-04-07 00:50:42,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [92741856] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:42,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:42,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:42,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488772247] [2022-04-07 00:50:42,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:42,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:42,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:42,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:42,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:42,734 INFO L87 Difference]: Start difference. First operand 2216 states and 3196 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:43,553 INFO L93 Difference]: Finished difference Result 4905 states and 7091 transitions. [2022-04-07 00:50:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:43,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 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 293 [2022-04-07 00:50:43,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:43,562 INFO L225 Difference]: With dead ends: 4905 [2022-04-07 00:50:43,562 INFO L226 Difference]: Without dead ends: 2736 [2022-04-07 00:50:43,566 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:43,566 INFO L913 BasicCegarLoop]: 404 mSDtfsCounter, 381 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:43,566 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 411 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:43,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-04-07 00:50:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2022-04-07 00:50:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2731 states have (on average 1.4419626510435737) internal successors, (3938), 2731 states have internal predecessors, (3938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3942 transitions. [2022-04-07 00:50:44,169 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3942 transitions. Word has length 293 [2022-04-07 00:50:44,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:44,169 INFO L478 AbstractCegarLoop]: Abstraction has 2736 states and 3942 transitions. [2022-04-07 00:50:44,169 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3942 transitions. [2022-04-07 00:50:44,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-04-07 00:50:44,173 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:44,173 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:44,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-07 00:50:44,173 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:44,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1724931248, now seen corresponding path program 1 times [2022-04-07 00:50:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:44,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1169398696] [2022-04-07 00:50:44,180 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:44,180 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:44,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1724931248, now seen corresponding path program 2 times [2022-04-07 00:50:44,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:44,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115910719] [2022-04-07 00:50:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-04-07 00:50:44,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:44,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115910719] [2022-04-07 00:50:44,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115910719] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:44,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:44,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:44,243 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:44,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1169398696] [2022-04-07 00:50:44,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1169398696] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:44,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:44,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:44,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003059922] [2022-04-07 00:50:44,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:44,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:44,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:44,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:44,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:44,244 INFO L87 Difference]: Start difference. First operand 2736 states and 3942 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:45,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:45,207 INFO L93 Difference]: Finished difference Result 5914 states and 8544 transitions. [2022-04-07 00:50:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:45,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 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 293 [2022-04-07 00:50:45,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:45,219 INFO L225 Difference]: With dead ends: 5914 [2022-04-07 00:50:45,219 INFO L226 Difference]: Without dead ends: 3225 [2022-04-07 00:50:45,224 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:45,224 INFO L913 BasicCegarLoop]: 407 mSDtfsCounter, 390 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:45,225 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 414 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:45,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-04-07 00:50:45,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3225. [2022-04-07 00:50:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 3220 states have (on average 1.441304347826087) internal successors, (4641), 3220 states have internal predecessors, (4641), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 4645 transitions. [2022-04-07 00:50:45,935 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 4645 transitions. Word has length 293 [2022-04-07 00:50:45,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:45,935 INFO L478 AbstractCegarLoop]: Abstraction has 3225 states and 4645 transitions. [2022-04-07 00:50:45,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 4645 transitions. [2022-04-07 00:50:45,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-04-07 00:50:45,939 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:45,939 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:45,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-07 00:50:45,939 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:45,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:45,939 INFO L85 PathProgramCache]: Analyzing trace with hash 492699150, now seen corresponding path program 1 times [2022-04-07 00:50:45,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:45,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1762355232] [2022-04-07 00:50:45,946 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:45,946 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:45,946 INFO L85 PathProgramCache]: Analyzing trace with hash 492699150, now seen corresponding path program 2 times [2022-04-07 00:50:45,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:45,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741235545] [2022-04-07 00:50:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:45,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-04-07 00:50:45,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:45,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741235545] [2022-04-07 00:50:45,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741235545] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:45,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:45,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:45,982 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:45,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1762355232] [2022-04-07 00:50:45,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1762355232] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:45,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:45,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:45,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140879208] [2022-04-07 00:50:45,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:45,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:45,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:45,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:45,984 INFO L87 Difference]: Start difference. First operand 3225 states and 4645 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:46,978 INFO L93 Difference]: Finished difference Result 6894 states and 9952 transitions. [2022-04-07 00:50:46,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:46,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 293 [2022-04-07 00:50:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:46,985 INFO L225 Difference]: With dead ends: 6894 [2022-04-07 00:50:46,985 INFO L226 Difference]: Without dead ends: 3716 [2022-04-07 00:50:46,990 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:46,990 INFO L913 BasicCegarLoop]: 407 mSDtfsCounter, 392 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:46,990 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 414 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2022-04-07 00:50:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3716. [2022-04-07 00:50:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 3711 states have (on average 1.4405820533548908) internal successors, (5346), 3711 states have internal predecessors, (5346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 5350 transitions. [2022-04-07 00:50:47,933 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 5350 transitions. Word has length 293 [2022-04-07 00:50:47,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:47,933 INFO L478 AbstractCegarLoop]: Abstraction has 3716 states and 5350 transitions. [2022-04-07 00:50:47,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:47,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 5350 transitions. [2022-04-07 00:50:47,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-04-07 00:50:47,950 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:47,950 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:47,950 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-07 00:50:47,950 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:47,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:47,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1480466228, now seen corresponding path program 1 times [2022-04-07 00:50:47,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:47,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1767498338] [2022-04-07 00:50:47,957 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:47,957 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:47,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1480466228, now seen corresponding path program 2 times [2022-04-07 00:50:47,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:47,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739048466] [2022-04-07 00:50:47,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:47,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:48,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-04-07 00:50:48,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:48,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739048466] [2022-04-07 00:50:48,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739048466] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:48,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:48,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:48,007 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:48,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1767498338] [2022-04-07 00:50:48,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1767498338] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:48,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:48,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:48,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156647594] [2022-04-07 00:50:48,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:48,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:48,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:48,009 INFO L87 Difference]: Start difference. First operand 3716 states and 5350 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:49,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:49,134 INFO L93 Difference]: Finished difference Result 7878 states and 11364 transitions. [2022-04-07 00:50:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:49,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 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 293 [2022-04-07 00:50:49,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:49,142 INFO L225 Difference]: With dead ends: 7878 [2022-04-07 00:50:49,142 INFO L226 Difference]: Without dead ends: 4209 [2022-04-07 00:50:49,145 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:49,146 INFO L913 BasicCegarLoop]: 407 mSDtfsCounter, 421 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:49,146 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 414 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2022-04-07 00:50:50,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2022-04-07 00:50:50,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4204 states have (on average 1.4398192197906756) internal successors, (6053), 4204 states have internal predecessors, (6053), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:50,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 6057 transitions. [2022-04-07 00:50:50,055 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 6057 transitions. Word has length 293 [2022-04-07 00:50:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:50,056 INFO L478 AbstractCegarLoop]: Abstraction has 4209 states and 6057 transitions. [2022-04-07 00:50:50,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 6057 transitions. [2022-04-07 00:50:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-04-07 00:50:50,062 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:50,062 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:50,062 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-07 00:50:50,062 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2085235269, now seen corresponding path program 1 times [2022-04-07 00:50:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:50,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1749200394] [2022-04-07 00:50:52,210 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:52,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2085235269, now seen corresponding path program 2 times [2022-04-07 00:50:52,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:52,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297454321] [2022-04-07 00:50:52,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:52,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 842 proven. 0 refuted. 0 times theorem prover too weak. 1114 trivial. 0 not checked. [2022-04-07 00:50:52,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:52,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297454321] [2022-04-07 00:50:52,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297454321] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:52,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:52,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:52,305 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:52,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1749200394] [2022-04-07 00:50:52,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1749200394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:52,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:52,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724542784] [2022-04-07 00:50:52,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:52,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:52,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:52,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:52,308 INFO L87 Difference]: Start difference. First operand 4209 states and 6057 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:54,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:54,625 INFO L93 Difference]: Finished difference Result 12279 states and 17670 transitions. [2022-04-07 00:50:54,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:54,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 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 441 [2022-04-07 00:50:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:54,641 INFO L225 Difference]: With dead ends: 12279 [2022-04-07 00:50:54,641 INFO L226 Difference]: Without dead ends: 8117 [2022-04-07 00:50:54,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:54,650 INFO L913 BasicCegarLoop]: 329 mSDtfsCounter, 469 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:54,650 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 336 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8117 states. [2022-04-07 00:50:56,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8117 to 8115. [2022-04-07 00:50:56,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8115 states, 8110 states have (on average 1.436498150431566) internal successors, (11650), 8110 states have internal predecessors, (11650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8115 states to 8115 states and 11654 transitions. [2022-04-07 00:50:56,465 INFO L78 Accepts]: Start accepts. Automaton has 8115 states and 11654 transitions. Word has length 441 [2022-04-07 00:50:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:56,466 INFO L478 AbstractCegarLoop]: Abstraction has 8115 states and 11654 transitions. [2022-04-07 00:50:56,466 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 8115 states and 11654 transitions. [2022-04-07 00:50:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-04-07 00:50:56,477 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:56,477 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:56,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-07 00:50:56,477 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:56,478 INFO L85 PathProgramCache]: Analyzing trace with hash -301274237, now seen corresponding path program 1 times [2022-04-07 00:50:56,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:56,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2047050814] [2022-04-07 00:50:58,547 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:58,548 INFO L85 PathProgramCache]: Analyzing trace with hash -301274237, now seen corresponding path program 2 times [2022-04-07 00:50:58,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:58,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357903983] [2022-04-07 00:50:58,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:58,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:58,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 572 proven. 26 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-04-07 00:50:58,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:58,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357903983] [2022-04-07 00:50:58,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357903983] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 00:50:58,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710501189] [2022-04-07 00:50:58,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 00:50:58,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:50:58,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:50:58,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 00:50:58,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-07 00:50:58,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 00:50:58,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 00:50:58,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-07 00:50:58,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 00:50:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2022-04-07 00:50:59,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 00:50:59,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710501189] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:59,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 00:50:59,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-07 00:50:59,273 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:59,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2047050814] [2022-04-07 00:50:59,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2047050814] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:59,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:59,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 00:50:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572796609] [2022-04-07 00:50:59,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:59,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 00:50:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:59,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 00:50:59,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:59,274 INFO L87 Difference]: Start difference. First operand 8115 states and 11654 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:01,558 INFO L93 Difference]: Finished difference Result 17212 states and 24754 transitions. [2022-04-07 00:51:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 00:51:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 1 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 441 [2022-04-07 00:51:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:01,576 INFO L225 Difference]: With dead ends: 17212 [2022-04-07 00:51:01,576 INFO L226 Difference]: Without dead ends: 9144 [2022-04-07 00:51:01,590 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:51:01,590 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 161 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:01,591 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 382 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:51:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2022-04-07 00:51:03,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 9144. [2022-04-07 00:51:03,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9144 states, 9139 states have (on average 1.438122332859175) internal successors, (13143), 9139 states have internal predecessors, (13143), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 13147 transitions. [2022-04-07 00:51:03,670 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 13147 transitions. Word has length 441 [2022-04-07 00:51:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:51:03,671 INFO L478 AbstractCegarLoop]: Abstraction has 9144 states and 13147 transitions. [2022-04-07 00:51:03,671 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 13147 transitions. [2022-04-07 00:51:03,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-04-07 00:51:03,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:51:03,684 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:51:03,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-07 00:51:03,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-04-07 00:51:03,902 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:51:03,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:51:03,902 INFO L85 PathProgramCache]: Analyzing trace with hash 319456453, now seen corresponding path program 1 times [2022-04-07 00:51:03,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:03,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1991944764] [2022-04-07 00:51:06,194 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:51:06,194 INFO L85 PathProgramCache]: Analyzing trace with hash 319456453, now seen corresponding path program 2 times [2022-04-07 00:51:06,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:51:06,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934862724] [2022-04-07 00:51:06,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:51:06,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:51:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:51:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 1996 proven. 26 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-04-07 00:51:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:51:06,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934862724] [2022-04-07 00:51:06,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934862724] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 00:51:06,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95740558] [2022-04-07 00:51:06,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 00:51:06,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:51:06,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:51:06,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 00:51:06,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-07 00:51:06,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 00:51:06,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 00:51:06,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-07 00:51:06,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 00:51:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 809 proven. 0 refuted. 0 times theorem prover too weak. 2753 trivial. 0 not checked. [2022-04-07 00:51:06,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 00:51:06,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95740558] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:06,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 00:51:06,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-07 00:51:06,889 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:51:06,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1991944764] [2022-04-07 00:51:06,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1991944764] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:06,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:06,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 00:51:06,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632244133] [2022-04-07 00:51:06,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:51:06,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 00:51:06,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:06,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 00:51:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:51:06,891 INFO L87 Difference]: Start difference. First operand 9144 states and 13147 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:09,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:09,654 INFO L93 Difference]: Finished difference Result 19270 states and 27740 transitions. [2022-04-07 00:51:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 00:51:09,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 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 592 [2022-04-07 00:51:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:09,705 INFO L225 Difference]: With dead ends: 19270 [2022-04-07 00:51:09,705 INFO L226 Difference]: Without dead ends: 10173 [2022-04-07 00:51:09,752 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:51:09,753 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 161 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:09,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 379 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:51:09,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10173 states. [2022-04-07 00:51:12,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10173 to 10173. [2022-04-07 00:51:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10168 states have (on average 1.4400078678206136) internal successors, (14642), 10168 states have internal predecessors, (14642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 14646 transitions. [2022-04-07 00:51:12,099 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 14646 transitions. Word has length 592 [2022-04-07 00:51:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:51:12,099 INFO L478 AbstractCegarLoop]: Abstraction has 10173 states and 14646 transitions. [2022-04-07 00:51:12,099 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 14646 transitions. [2022-04-07 00:51:12,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2022-04-07 00:51:12,117 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:51:12,117 INFO L499 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:51:12,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-07 00:51:12,331 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:51:12,331 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:51:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:51:12,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1440999343, now seen corresponding path program 1 times [2022-04-07 00:51:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:12,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [502301140] [2022-04-07 00:51:14,913 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:51:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1440999343, now seen corresponding path program 2 times [2022-04-07 00:51:14,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:51:14,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166147201] [2022-04-07 00:51:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:51:14,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:51:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:51:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2022-04-07 00:51:15,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:51:15,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166147201] [2022-04-07 00:51:15,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166147201] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 00:51:15,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386824387] [2022-04-07 00:51:15,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 00:51:15,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:51:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:51:15,064 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 00:51:15,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-07 00:51:15,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 00:51:15,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 00:51:15,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-07 00:51:15,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 00:51:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 1047 proven. 0 refuted. 0 times theorem prover too weak. 4631 trivial. 0 not checked. [2022-04-07 00:51:15,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 00:51:15,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386824387] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:15,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 00:51:15,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-07 00:51:15,869 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:51:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [502301140] [2022-04-07 00:51:15,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [502301140] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:15,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:15,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 00:51:15,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498856735] [2022-04-07 00:51:15,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:51:15,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 00:51:15,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:15,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 00:51:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:51:15,871 INFO L87 Difference]: Start difference. First operand 10173 states and 14646 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:18,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:18,550 INFO L93 Difference]: Finished difference Result 21328 states and 30738 transitions. [2022-04-07 00:51:18,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 00:51:18,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 1 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 746 [2022-04-07 00:51:18,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:18,568 INFO L225 Difference]: With dead ends: 21328 [2022-04-07 00:51:18,568 INFO L226 Difference]: Without dead ends: 11202 [2022-04-07 00:51:18,587 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 747 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:51:18,588 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 161 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:18,588 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 376 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:51:18,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2022-04-07 00:51:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 11202. [2022-04-07 00:51:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11202 states, 11197 states have (on average 1.442082700723408) internal successors, (16147), 11197 states have internal predecessors, (16147), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11202 states to 11202 states and 16151 transitions. [2022-04-07 00:51:21,245 INFO L78 Accepts]: Start accepts. Automaton has 11202 states and 16151 transitions. Word has length 746 [2022-04-07 00:51:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:51:21,245 INFO L478 AbstractCegarLoop]: Abstraction has 11202 states and 16151 transitions. [2022-04-07 00:51:21,246 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 11202 states and 16151 transitions. [2022-04-07 00:51:21,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2022-04-07 00:51:21,265 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:51:21,265 INFO L499 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:51:21,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-07 00:51:21,468 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-04-07 00:51:21,472 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:51:21,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:51:21,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1911529224, now seen corresponding path program 1 times [2022-04-07 00:51:21,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:21,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1306526594] [2022-04-07 00:51:24,495 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:51:24,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1911529224, now seen corresponding path program 2 times [2022-04-07 00:51:24,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:51:24,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914423768] [2022-04-07 00:51:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:51:24,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:51:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:51:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2022-04-07 00:51:24,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:51:24,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914423768] [2022-04-07 00:51:24,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914423768] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 00:51:24,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746187391] [2022-04-07 00:51:24,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 00:51:24,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:51:24,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:51:24,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 00:51:24,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-07 00:51:24,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 00:51:24,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 00:51:24,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-07 00:51:24,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 00:51:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2022-04-07 00:51:25,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 00:51:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2022-04-07 00:51:26,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746187391] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 00:51:26,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-07 00:51:26,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-04-07 00:51:26,116 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:51:26,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1306526594] [2022-04-07 00:51:26,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1306526594] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:26,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:26,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:51:26,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320381588] [2022-04-07 00:51:26,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:51:26,117 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:51:26,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:26,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:51:26,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:51:26,118 INFO L87 Difference]: Start difference. First operand 11202 states and 16151 transitions. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 4 states have internal predecessors, (248), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:29,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:29,514 INFO L93 Difference]: Finished difference Result 24108 states and 35132 transitions. [2022-04-07 00:51:29,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:51:29,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 4 states have internal predecessors, (248), 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 903 [2022-04-07 00:51:29,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:29,532 INFO L225 Difference]: With dead ends: 24108 [2022-04-07 00:51:29,532 INFO L226 Difference]: Without dead ends: 11573 [2022-04-07 00:51:29,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1817 GetRequests, 1807 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-04-07 00:51:29,550 INFO L913 BasicCegarLoop]: 370 mSDtfsCounter, 362 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:29,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 382 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:51:29,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11573 states. [2022-04-07 00:51:31,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11573 to 9005. [2022-04-07 00:51:31,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9005 states, 9000 states have (on average 1.4214444444444445) internal successors, (12793), 9000 states have internal predecessors, (12793), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9005 states to 9005 states and 12797 transitions. [2022-04-07 00:51:31,813 INFO L78 Accepts]: Start accepts. Automaton has 9005 states and 12797 transitions. Word has length 903 [2022-04-07 00:51:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:51:31,814 INFO L478 AbstractCegarLoop]: Abstraction has 9005 states and 12797 transitions. [2022-04-07 00:51:31,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 4 states have internal predecessors, (248), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 9005 states and 12797 transitions. [2022-04-07 00:51:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2022-04-07 00:51:31,828 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:51:31,828 INFO L499 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 37, 37, 33, 33, 33, 28, 28, 23, 23, 18, 18, 13, 13, 13, 13, 8, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:51:31,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-07 00:51:32,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:51:32,043 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:51:32,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:51:32,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1996354492, now seen corresponding path program 1 times [2022-04-07 00:51:32,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:32,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [734400481] [2022-04-07 00:51:33,706 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:51:33,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1996354492, now seen corresponding path program 2 times [2022-04-07 00:51:33,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:51:33,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962608990] [2022-04-07 00:51:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:51:33,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:51:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:51:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12949 backedges. 5608 proven. 0 refuted. 0 times theorem prover too weak. 7341 trivial. 0 not checked. [2022-04-07 00:51:33,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:51:33,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962608990] [2022-04-07 00:51:33,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962608990] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:33,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:33,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:33,855 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:51:33,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [734400481] [2022-04-07 00:51:33,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [734400481] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:33,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:33,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:33,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205894833] [2022-04-07 00:51:33,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:51:33,865 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:51:33,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:33,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:51:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:51:33,866 INFO L87 Difference]: Start difference. First operand 9005 states and 12797 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 3 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:36,281 INFO L93 Difference]: Finished difference Result 18174 states and 25783 transitions. [2022-04-07 00:51:36,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:51:36,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 3 states have internal predecessors, (187), 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 1015 [2022-04-07 00:51:36,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:36,302 INFO L225 Difference]: With dead ends: 18174 [2022-04-07 00:51:36,302 INFO L226 Difference]: Without dead ends: 9215 [2022-04-07 00:51:36,311 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:51:36,313 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 330 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:36,313 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 226 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:51:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9215 states. [2022-04-07 00:51:38,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9215 to 9005. [2022-04-07 00:51:38,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9005 states, 9000 states have (on average 1.402) internal successors, (12618), 9000 states have internal predecessors, (12618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9005 states to 9005 states and 12622 transitions. [2022-04-07 00:51:38,546 INFO L78 Accepts]: Start accepts. Automaton has 9005 states and 12622 transitions. Word has length 1015 [2022-04-07 00:51:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:51:38,547 INFO L478 AbstractCegarLoop]: Abstraction has 9005 states and 12622 transitions. [2022-04-07 00:51:38,547 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 3 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 9005 states and 12622 transitions. [2022-04-07 00:51:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2022-04-07 00:51:38,563 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:51:38,564 INFO L499 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 38, 38, 38, 38, 38, 38, 38, 33, 33, 33, 28, 28, 23, 23, 18, 18, 13, 13, 13, 13, 8, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:51:38,564 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-07 00:51:38,564 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:51:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:51:38,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1334782468, now seen corresponding path program 1 times [2022-04-07 00:51:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:38,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [817055394] [2022-04-07 00:51:40,062 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:51:40,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1334782468, now seen corresponding path program 2 times [2022-04-07 00:51:40,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:51:40,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877073946] [2022-04-07 00:51:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:51:40,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:51:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:51:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 13937 backedges. 5675 proven. 0 refuted. 0 times theorem prover too weak. 8262 trivial. 0 not checked. [2022-04-07 00:51:40,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:51:40,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877073946] [2022-04-07 00:51:40,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877073946] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:40,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:40,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:40,230 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:51:40,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [817055394] [2022-04-07 00:51:40,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [817055394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:40,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:40,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:40,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974113109] [2022-04-07 00:51:40,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:51:40,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:51:40,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:40,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:51:40,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:51:40,232 INFO L87 Difference]: Start difference. First operand 9005 states and 12622 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:42,766 INFO L93 Difference]: Finished difference Result 18325 states and 25609 transitions. [2022-04-07 00:51:42,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:51:42,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 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 1071 [2022-04-07 00:51:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:42,780 INFO L225 Difference]: With dead ends: 18325 [2022-04-07 00:51:42,780 INFO L226 Difference]: Without dead ends: 9334 [2022-04-07 00:51:42,790 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:51:42,797 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 423 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:42,798 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 223 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:51:42,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9334 states. [2022-04-07 00:51:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9334 to 9011. [2022-04-07 00:51:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9011 states, 9006 states have (on average 1.3560959360426383) internal successors, (12213), 9006 states have internal predecessors, (12213), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9011 states to 9011 states and 12217 transitions. [2022-04-07 00:51:45,115 INFO L78 Accepts]: Start accepts. Automaton has 9011 states and 12217 transitions. Word has length 1071 [2022-04-07 00:51:45,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:51:45,116 INFO L478 AbstractCegarLoop]: Abstraction has 9011 states and 12217 transitions. [2022-04-07 00:51:45,116 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 9011 states and 12217 transitions. [2022-04-07 00:51:45,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1238 [2022-04-07 00:51:45,131 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:51:45,131 INFO L499 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 42, 42, 42, 42, 42, 42, 42, 37, 37, 37, 32, 32, 27, 27, 22, 22, 17, 17, 17, 17, 12, 11, 11, 10, 10, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:51:45,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-07 00:51:45,132 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:51:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:51:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 463036114, now seen corresponding path program 1 times [2022-04-07 00:51:45,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:45,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [476158398] [2022-04-07 00:51:47,123 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:51:47,124 INFO L85 PathProgramCache]: Analyzing trace with hash 463036114, now seen corresponding path program 2 times [2022-04-07 00:51:47,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:51:47,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021858622] [2022-04-07 00:51:47,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:51:47,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:51:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:47,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:51:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 17577 backedges. 7128 proven. 0 refuted. 0 times theorem prover too weak. 10449 trivial. 0 not checked. [2022-04-07 00:51:47,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:51:47,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021858622] [2022-04-07 00:51:47,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021858622] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:47,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:47,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:47,426 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:51:47,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [476158398] [2022-04-07 00:51:47,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [476158398] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:47,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:47,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:47,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234458470] [2022-04-07 00:51:47,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:51:47,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:51:47,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:47,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:51:47,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:51:47,428 INFO L87 Difference]: Start difference. First operand 9011 states and 12217 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:49,994 INFO L93 Difference]: Finished difference Result 18275 states and 24720 transitions. [2022-04-07 00:51:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:51:49,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 1237 [2022-04-07 00:51:49,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:50,007 INFO L225 Difference]: With dead ends: 18275 [2022-04-07 00:51:50,007 INFO L226 Difference]: Without dead ends: 9316 [2022-04-07 00:51:50,019 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:51:50,020 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 438 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:50,021 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 220 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:51:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9316 states. [2022-04-07 00:51:52,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9316 to 9011. [2022-04-07 00:51:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9011 states, 9006 states have (on average 1.3520986009327116) internal successors, (12177), 9006 states have internal predecessors, (12177), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9011 states to 9011 states and 12181 transitions. [2022-04-07 00:51:52,318 INFO L78 Accepts]: Start accepts. Automaton has 9011 states and 12181 transitions. Word has length 1237 [2022-04-07 00:51:52,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:51:52,319 INFO L478 AbstractCegarLoop]: Abstraction has 9011 states and 12181 transitions. [2022-04-07 00:51:52,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 9011 states and 12181 transitions. [2022-04-07 00:51:52,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1356 [2022-04-07 00:51:52,336 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:51:52,336 INFO L499 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 41, 41, 41, 36, 36, 31, 31, 26, 26, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:51:52,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-07 00:51:52,337 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:51:52,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:51:52,337 INFO L85 PathProgramCache]: Analyzing trace with hash 416408710, now seen corresponding path program 1 times [2022-04-07 00:51:52,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:52,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [947568889] [2022-04-07 00:51:55,069 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:51:55,070 INFO L85 PathProgramCache]: Analyzing trace with hash 416408710, now seen corresponding path program 2 times [2022-04-07 00:51:55,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:51:55,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101164951] [2022-04-07 00:51:55,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:51:55,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:51:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:55,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:51:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:51:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 20609 backedges. 8724 proven. 0 refuted. 0 times theorem prover too weak. 11885 trivial. 0 not checked. [2022-04-07 00:51:55,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:51:55,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101164951] [2022-04-07 00:51:55,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101164951] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:55,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:55,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:55,265 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:51:55,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [947568889] [2022-04-07 00:51:55,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [947568889] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:51:55,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:51:55,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:51:55,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109097537] [2022-04-07 00:51:55,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:51:55,266 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:51:55,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:51:55,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:51:55,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:51:55,267 INFO L87 Difference]: Start difference. First operand 9011 states and 12181 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:51:57,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:51:57,839 INFO L93 Difference]: Finished difference Result 18380 states and 24839 transitions. [2022-04-07 00:51:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:51:57,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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 1355 [2022-04-07 00:51:57,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:51:57,852 INFO L225 Difference]: With dead ends: 18380 [2022-04-07 00:51:57,852 INFO L226 Difference]: Without dead ends: 9355 [2022-04-07 00:51:57,874 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:51:57,875 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 266 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:51:57,875 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 261 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:51:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9355 states. [2022-04-07 00:52:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9355 to 9165. [2022-04-07 00:52:00,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9165 states, 9160 states have (on average 1.3474890829694324) internal successors, (12343), 9160 states have internal predecessors, (12343), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:52:00,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9165 states to 9165 states and 12347 transitions. [2022-04-07 00:52:00,182 INFO L78 Accepts]: Start accepts. Automaton has 9165 states and 12347 transitions. Word has length 1355 [2022-04-07 00:52:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:52:00,182 INFO L478 AbstractCegarLoop]: Abstraction has 9165 states and 12347 transitions. [2022-04-07 00:52:00,182 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:52:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 9165 states and 12347 transitions. [2022-04-07 00:52:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2022-04-07 00:52:00,227 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:52:00,227 INFO L499 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 49, 49, 46, 46, 46, 46, 46, 46, 41, 41, 41, 36, 36, 31, 31, 26, 26, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:52:00,228 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-07 00:52:00,228 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:52:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:52:00,228 INFO L85 PathProgramCache]: Analyzing trace with hash 651787080, now seen corresponding path program 1 times [2022-04-07 00:52:00,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:52:00,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [658167669] [2022-04-07 00:52:02,579 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:52:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash 651787080, now seen corresponding path program 2 times [2022-04-07 00:52:02,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:52:02,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777800247] [2022-04-07 00:52:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:52:02,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:52:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:52:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:52:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:52:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 21979 backedges. 8882 proven. 0 refuted. 0 times theorem prover too weak. 13097 trivial. 0 not checked. [2022-04-07 00:52:02,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:52:02,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777800247] [2022-04-07 00:52:02,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777800247] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:52:02,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:52:02,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:52:02,796 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:52:02,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [658167669] [2022-04-07 00:52:02,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [658167669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:52:02,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:52:02,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:52:02,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51055986] [2022-04-07 00:52:02,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:52:02,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:52:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:52:02,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:52:02,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:52:02,798 INFO L87 Difference]: Start difference. First operand 9165 states and 12347 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:52:04,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:52:04,904 INFO L93 Difference]: Finished difference Result 16364 states and 21969 transitions. [2022-04-07 00:52:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:52:04,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 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 1415 [2022-04-07 00:52:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:52:04,905 INFO L225 Difference]: With dead ends: 16364 [2022-04-07 00:52:04,905 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 00:52:04,955 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:52:04,956 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 416 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:52:04,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 196 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:52:04,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 00:52:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 00:52:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-07 00:52:04,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 00:52:04,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1415 [2022-04-07 00:52:04,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:52:04,959 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 00:52:04,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:52:04,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 00:52:04,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 00:52:04,963 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 00:52:04,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-07 00:52:04,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-07 00:52:41,151 WARN L232 SmtUtils]: Spent 23.75s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:52:55,176 WARN L232 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 689 DAG size of output: 685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:53:20,921 WARN L232 SmtUtils]: Spent 25.26s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:53:34,090 WARN L232 SmtUtils]: Spent 12.95s on a formula simplification. DAG size of input: 689 DAG size of output: 685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:53:52,023 WARN L232 SmtUtils]: Spent 12.71s on a formula simplification. DAG size of input: 689 DAG size of output: 685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:53:59,858 WARN L232 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 497 DAG size of output: 493 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:54:14,566 WARN L232 SmtUtils]: Spent 13.01s on a formula simplification. DAG size of input: 690 DAG size of output: 686 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:54:27,790 WARN L232 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 688 DAG size of output: 684 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:54:53,793 WARN L232 SmtUtils]: Spent 23.55s on a formula simplification. DAG size of input: 417 DAG size of output: 407 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:55:19,361 WARN L232 SmtUtils]: Spent 25.05s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:55:32,354 WARN L232 SmtUtils]: Spent 12.99s on a formula simplification. DAG size of input: 690 DAG size of output: 686 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:55:45,993 WARN L232 SmtUtils]: Spent 12.77s on a formula simplification. DAG size of input: 690 DAG size of output: 686 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:56:13,719 WARN L232 SmtUtils]: Spent 23.70s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:56:27,133 WARN L232 SmtUtils]: Spent 13.21s on a formula simplification. DAG size of input: 696 DAG size of output: 692 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:56:39,751 WARN L232 SmtUtils]: Spent 12.61s on a formula simplification. DAG size of input: 689 DAG size of output: 685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:56:45,209 WARN L232 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 534 DAG size of output: 530 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:56:51,793 WARN L232 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 588 DAG size of output: 584 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:57:10,314 WARN L232 SmtUtils]: Spent 12.18s on a formula simplification. DAG size of input: 690 DAG size of output: 686 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:57:23,355 WARN L232 SmtUtils]: Spent 12.07s on a formula simplification. DAG size of input: 689 DAG size of output: 685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:57:36,772 WARN L232 SmtUtils]: Spent 11.54s on a formula simplification. DAG size of input: 688 DAG size of output: 684 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:58:00,735 WARN L232 SmtUtils]: Spent 23.11s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:58:15,308 WARN L232 SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 688 DAG size of output: 684 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:58:30,082 WARN L232 SmtUtils]: Spent 13.21s on a formula simplification. DAG size of input: 711 DAG size of output: 707 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:58:40,830 WARN L232 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 534 DAG size of output: 530 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:59:04,844 WARN L232 SmtUtils]: Spent 23.38s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:59:17,625 WARN L232 SmtUtils]: Spent 11.82s on a formula simplification. DAG size of input: 688 DAG size of output: 684 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:59:32,857 WARN L232 SmtUtils]: Spent 12.06s on a formula simplification. DAG size of input: 688 DAG size of output: 684 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 00:59:56,038 WARN L232 SmtUtils]: Spent 23.18s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 01:00:10,016 WARN L232 SmtUtils]: Spent 12.60s on a formula simplification. DAG size of input: 690 DAG size of output: 686 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 01:00:24,400 WARN L232 SmtUtils]: Spent 12.64s on a formula simplification. DAG size of input: 690 DAG size of output: 686 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 01:00:38,550 WARN L232 SmtUtils]: Spent 12.43s on a formula simplification. DAG size of input: 689 DAG size of output: 685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 01:00:54,307 WARN L232 SmtUtils]: Spent 12.47s on a formula simplification. DAG size of input: 689 DAG size of output: 685 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 01:01:17,925 WARN L232 SmtUtils]: Spent 23.60s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 01:01:47,804 WARN L232 SmtUtils]: Spent 23.24s on a formula simplification. DAG size of input: 440 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-04-07 01:02:21,733 WARN L232 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 679 DAG size of output: 86 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:02:34,171 WARN L232 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 679 DAG size of output: 86 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:02:49,963 WARN L232 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 679 DAG size of output: 86 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:03:11,104 WARN L232 SmtUtils]: Spent 8.97s on a formula simplification. DAG size of input: 680 DAG size of output: 110 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:03:21,612 WARN L232 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 676 DAG size of output: 116 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:03:43,326 WARN L232 SmtUtils]: Spent 8.54s on a formula simplification. DAG size of input: 680 DAG size of output: 110 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:03:51,876 WARN L232 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 680 DAG size of output: 86 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:04:07,156 WARN L232 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 684 DAG size of output: 110 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:04:12,449 WARN L232 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 679 DAG size of output: 86 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:04:39,213 WARN L232 SmtUtils]: Spent 8.76s on a formula simplification. DAG size of input: 680 DAG size of output: 110 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:04:47,359 WARN L232 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 679 DAG size of output: 86 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-04-07 01:04:57,269 WARN L232 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 676 DAG size of output: 116 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter)