/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_11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 00:49:45,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 00:49:45,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 00:49:45,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-07 00:49:45,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 00:49:45,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 00:49:45,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 00:49:45,591 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 00:49:45,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 00:49:45,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 00:49:45,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 00:49:45,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 00:49:45,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 00:49:45,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 00:49:45,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 00:49:45,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 00:49:45,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 00:49:45,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 00:49:45,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 00:49:45,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 00:49:45,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 00:49:45,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 00:49:45,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 00:49:45,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:49:45,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 00:49:45,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-07 00:49:45,606 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-07 00:49:45,606 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-07 00:49:45,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 00:49:45,606 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-07 00:49:45,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 00:49:45,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 00:49:45,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 00:49:45,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 00:49:45,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 00:49:45,854 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 00:49:45,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c [2022-04-07 00:49:45,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bcace53/3a0e9c72bc8e4cc2989ff4d508b29b9f/FLAG7eef2d6ae [2022-04-07 00:49:46,254 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 00:49:46,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c [2022-04-07 00:49:46,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bcace53/3a0e9c72bc8e4cc2989ff4d508b29b9f/FLAG7eef2d6ae [2022-04-07 00:49:46,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bcace53/3a0e9c72bc8e4cc2989ff4d508b29b9f [2022-04-07 00:49:46,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 00:49:46,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-07 00:49:46,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 00:49:46,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 00:49:46,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 00:49:46,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc668c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46, skipping insertion in model container [2022-04-07 00:49:46,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 00:49:46,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 00:49:46,910 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_11.cil.c[43646,43659] [2022-04-07 00:49:46,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:49:46,925 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 00:49:46,964 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_11.cil.c[43646,43659] [2022-04-07 00:49:46,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:49:46,977 INFO L208 MainTranslator]: Completed translation [2022-04-07 00:49:46,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46 WrapperNode [2022-04-07 00:49:46,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 00:49:46,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 00:49:46,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 00:49:46,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 00:49:46,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:47,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:47,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:47,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:47,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 00:49:47,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 00:49:47,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 00:49:47,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 00:49:47,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:47,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:49:47,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:49:47,081 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 00:49:47,100 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 00:49:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 00:49:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 00:49:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 00:49:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-07 00:49:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 00:49:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 00:49:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 00:49:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 00:49:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 00:49:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-07 00:49:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 00:49:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-07 00:49:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-07 00:49:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-07 00:49:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 00:49:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 00:49:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 00:49:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 00:49:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 00:49:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 00:49:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 00:49:47,226 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 00:49:47,228 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 00:49:47,306 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-07 00:49:47,653 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-07 00:49:47,654 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-07 00:49:47,660 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 00:49:47,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 00:49:47,668 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 00:49:47,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:49:47 BoogieIcfgContainer [2022-04-07 00:49:47,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 00:49:47,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 00:49:47,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 00:49:47,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 00:49:47,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 12:49:46" (1/3) ... [2022-04-07 00:49:47,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2560d3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:49:47, skipping insertion in model container [2022-04-07 00:49:47,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (2/3) ... [2022-04-07 00:49:47,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2560d3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:49:47, skipping insertion in model container [2022-04-07 00:49:47,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:49:47" (3/3) ... [2022-04-07 00:49:47,677 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_11.cil.c [2022-04-07 00:49:47,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-07 00:49:47,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 00:49:47,737 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 00:49:47,742 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 00:49:47,743 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 00:49:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7266666666666666) internal successors, (259), 151 states have internal predecessors, (259), 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 00:49:47,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-07 00:49:47,772 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:47,773 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:47,773 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:47,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:47,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1730008188, now seen corresponding path program 1 times [2022-04-07 00:49:47,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:47,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1622368087] [2022-04-07 00:49:47,791 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:47,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1730008188, now seen corresponding path program 2 times [2022-04-07 00:49:47,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:47,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456787496] [2022-04-07 00:49:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:47,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,055 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 00:49:48,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:48,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456787496] [2022-04-07 00:49:48,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456787496] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:48,059 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:48,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1622368087] [2022-04-07 00:49:48,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1622368087] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:48,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048505506] [2022-04-07 00:49:48,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:48,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:48,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:48,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:48,090 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7266666666666666) internal successors, (259), 151 states have internal predecessors, (259), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:48,650 INFO L93 Difference]: Finished difference Result 365 states and 628 transitions. [2022-04-07 00:49:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:48,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-04-07 00:49:48,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:48,673 INFO L225 Difference]: With dead ends: 365 [2022-04-07 00:49:48,674 INFO L226 Difference]: Without dead ends: 186 [2022-04-07 00:49:48,679 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 00:49:48,682 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 355 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:48,683 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 290 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-07 00:49:48,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-04-07 00:49:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2022-04-07 00:49:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.4833333333333334) internal successors, (267), 180 states have internal predecessors, (267), 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 00:49:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 271 transitions. [2022-04-07 00:49:48,749 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 271 transitions. Word has length 32 [2022-04-07 00:49:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:48,749 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 271 transitions. [2022-04-07 00:49:48,749 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 271 transitions. [2022-04-07 00:49:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-07 00:49:48,751 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:48,751 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:48,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 00:49:48,752 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:48,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:48,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1886345113, now seen corresponding path program 1 times [2022-04-07 00:49:48,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:48,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [555225075] [2022-04-07 00:49:48,753 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:48,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1886345113, now seen corresponding path program 2 times [2022-04-07 00:49:48,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:48,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468975645] [2022-04-07 00:49:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:48,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,856 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 00:49:48,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:48,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468975645] [2022-04-07 00:49:48,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468975645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:48,858 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:48,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [555225075] [2022-04-07 00:49:48,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [555225075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:48,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399364897] [2022-04-07 00:49:48,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:48,859 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:49:48,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:48,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:49:48,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:49:48,860 INFO L87 Difference]: Start difference. First operand 185 states and 271 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:49,251 INFO L93 Difference]: Finished difference Result 385 states and 567 transitions. [2022-04-07 00:49:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 00:49:49,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-04-07 00:49:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:49,262 INFO L225 Difference]: With dead ends: 385 [2022-04-07 00:49:49,263 INFO L226 Difference]: Without dead ends: 214 [2022-04-07 00:49:49,268 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-07 00:49:49,269 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 423 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:49,269 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 185 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-04-07 00:49:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 193. [2022-04-07 00:49:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 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 00:49:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 284 transitions. [2022-04-07 00:49:49,294 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 284 transitions. Word has length 33 [2022-04-07 00:49:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:49,294 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 284 transitions. [2022-04-07 00:49:49,294 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 284 transitions. [2022-04-07 00:49:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-04-07 00:49:49,296 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:49,296 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:49,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 00:49:49,296 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash -818420097, now seen corresponding path program 1 times [2022-04-07 00:49:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1478804380] [2022-04-07 00:49:49,297 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:49,298 INFO L85 PathProgramCache]: Analyzing trace with hash -818420097, now seen corresponding path program 2 times [2022-04-07 00:49:49,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:49,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301558532] [2022-04-07 00:49:49,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:49,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,364 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 00:49:49,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:49,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301558532] [2022-04-07 00:49:49,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301558532] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:49,365 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:49,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1478804380] [2022-04-07 00:49:49,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1478804380] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:49,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239076326] [2022-04-07 00:49:49,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:49,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:49:49,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:49:49,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:49:49,367 INFO L87 Difference]: Start difference. First operand 193 states and 284 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 00:49:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:49,720 INFO L93 Difference]: Finished difference Result 411 states and 605 transitions. [2022-04-07 00:49:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 00:49:49,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-04-07 00:49:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:49,722 INFO L225 Difference]: With dead ends: 411 [2022-04-07 00:49:49,722 INFO L226 Difference]: Without dead ends: 232 [2022-04-07 00:49:49,723 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-07 00:49:49,724 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 396 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:49,725 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 196 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-04-07 00:49:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2022-04-07 00:49:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.4771573604060915) internal successors, (291), 197 states have internal predecessors, (291), 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 00:49:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 295 transitions. [2022-04-07 00:49:49,752 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 295 transitions. Word has length 35 [2022-04-07 00:49:49,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:49,752 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 295 transitions. [2022-04-07 00:49:49,752 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 00:49:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 295 transitions. [2022-04-07 00:49:49,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-04-07 00:49:49,754 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:49,754 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:49,754 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-07 00:49:49,754 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:49,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:49,755 INFO L85 PathProgramCache]: Analyzing trace with hash -148338235, now seen corresponding path program 1 times [2022-04-07 00:49:49,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1314478984] [2022-04-07 00:49:49,756 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:49,756 INFO L85 PathProgramCache]: Analyzing trace with hash -148338235, now seen corresponding path program 2 times [2022-04-07 00:49:49,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:49,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283573347] [2022-04-07 00:49:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:49,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,845 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 00:49:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:49,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283573347] [2022-04-07 00:49:49,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283573347] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:49,846 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:49,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1314478984] [2022-04-07 00:49:49,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1314478984] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:49,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360463715] [2022-04-07 00:49:49,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:49,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:49,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:49,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:49,850 INFO L87 Difference]: Start difference. First operand 202 states and 295 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 00:49:50,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:50,130 INFO L93 Difference]: Finished difference Result 441 states and 666 transitions. [2022-04-07 00:49:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:50,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 36 [2022-04-07 00:49:50,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:50,132 INFO L225 Difference]: With dead ends: 441 [2022-04-07 00:49:50,132 INFO L226 Difference]: Without dead ends: 241 [2022-04-07 00:49:50,133 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 00:49:50,134 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 310 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:50,134 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 234 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-04-07 00:49:50,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 225. [2022-04-07 00:49:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 220 states have (on average 1.4954545454545454) internal successors, (329), 220 states have internal predecessors, (329), 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 00:49:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 333 transitions. [2022-04-07 00:49:50,162 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 333 transitions. Word has length 36 [2022-04-07 00:49:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:50,162 INFO L478 AbstractCegarLoop]: Abstraction has 225 states and 333 transitions. [2022-04-07 00:49:50,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 00:49:50,163 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 333 transitions. [2022-04-07 00:49:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-07 00:49:50,164 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:50,164 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:50,164 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-07 00:49:50,164 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1107449201, now seen corresponding path program 1 times [2022-04-07 00:49:50,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1478730287] [2022-04-07 00:49:50,166 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:50,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1107449201, now seen corresponding path program 2 times [2022-04-07 00:49:50,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:50,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177247648] [2022-04-07 00:49:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:50,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,235 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 00:49:50,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:50,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177247648] [2022-04-07 00:49:50,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177247648] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:50,237 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:50,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1478730287] [2022-04-07 00:49:50,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1478730287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:50,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120968029] [2022-04-07 00:49:50,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:50,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:50,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:50,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:50,239 INFO L87 Difference]: Start difference. First operand 225 states and 333 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:50,468 INFO L93 Difference]: Finished difference Result 646 states and 962 transitions. [2022-04-07 00:49:50,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:50,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-04-07 00:49:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:50,473 INFO L225 Difference]: With dead ends: 646 [2022-04-07 00:49:50,473 INFO L226 Difference]: Without dead ends: 435 [2022-04-07 00:49:50,473 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 00:49:50,475 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 589 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:50,475 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 220 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:50,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-04-07 00:49:50,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2022-04-07 00:49:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 428 states have (on average 1.4883177570093458) internal successors, (637), 428 states have internal predecessors, (637), 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 00:49:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 641 transitions. [2022-04-07 00:49:50,520 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 641 transitions. Word has length 41 [2022-04-07 00:49:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:50,521 INFO L478 AbstractCegarLoop]: Abstraction has 433 states and 641 transitions. [2022-04-07 00:49:50,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,521 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 641 transitions. [2022-04-07 00:49:50,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-04-07 00:49:50,524 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:50,524 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:50,524 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 00:49:50,524 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:50,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1540817245, now seen corresponding path program 1 times [2022-04-07 00:49:50,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [401653424] [2022-04-07 00:49:50,526 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:50,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1540817245, now seen corresponding path program 2 times [2022-04-07 00:49:50,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:50,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805703225] [2022-04-07 00:49:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:50,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,612 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 00:49:50,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:50,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805703225] [2022-04-07 00:49:50,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805703225] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:50,613 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:50,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [401653424] [2022-04-07 00:49:50,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [401653424] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:50,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524255701] [2022-04-07 00:49:50,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:50,614 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:50,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:50,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:50,615 INFO L87 Difference]: Start difference. First operand 433 states and 641 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:50,906 INFO L93 Difference]: Finished difference Result 972 states and 1480 transitions. [2022-04-07 00:49:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:50,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-04-07 00:49:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:50,910 INFO L225 Difference]: With dead ends: 972 [2022-04-07 00:49:50,910 INFO L226 Difference]: Without dead ends: 529 [2022-04-07 00:49:50,911 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 00:49:50,913 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 348 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:50,914 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 235 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-04-07 00:49:50,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 489. [2022-04-07 00:49:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5103305785123966) internal successors, (731), 484 states have internal predecessors, (731), 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 00:49:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 735 transitions. [2022-04-07 00:49:50,960 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 735 transitions. Word has length 41 [2022-04-07 00:49:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:50,960 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 735 transitions. [2022-04-07 00:49:50,960 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 735 transitions. [2022-04-07 00:49:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-07 00:49:50,963 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:50,963 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] [2022-04-07 00:49:50,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-07 00:49:50,963 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:50,964 INFO L85 PathProgramCache]: Analyzing trace with hash 162840181, now seen corresponding path program 1 times [2022-04-07 00:49:50,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1557282369] [2022-04-07 00:49:50,965 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:50,965 INFO L85 PathProgramCache]: Analyzing trace with hash 162840181, now seen corresponding path program 2 times [2022-04-07 00:49:50,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:50,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945911176] [2022-04-07 00:49:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:50,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,020 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 00:49:51,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:51,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945911176] [2022-04-07 00:49:51,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945911176] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:51,021 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:51,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1557282369] [2022-04-07 00:49:51,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1557282369] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:51,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612143160] [2022-04-07 00:49:51,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:51,022 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:51,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:51,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:51,022 INFO L87 Difference]: Start difference. First operand 489 states and 735 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 00:49:51,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:51,355 INFO L93 Difference]: Finished difference Result 1058 states and 1625 transitions. [2022-04-07 00:49:51,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:51,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 42 [2022-04-07 00:49:51,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:51,359 INFO L225 Difference]: With dead ends: 1058 [2022-04-07 00:49:51,359 INFO L226 Difference]: Without dead ends: 583 [2022-04-07 00:49:51,360 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 00:49:51,361 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:51,361 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 238 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:51,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-04-07 00:49:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 571. [2022-04-07 00:49:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 566 states have (on average 1.4681978798586572) internal successors, (831), 566 states have internal predecessors, (831), 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 00:49:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 835 transitions. [2022-04-07 00:49:51,409 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 835 transitions. Word has length 42 [2022-04-07 00:49:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:51,410 INFO L478 AbstractCegarLoop]: Abstraction has 571 states and 835 transitions. [2022-04-07 00:49:51,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 00:49:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 835 transitions. [2022-04-07 00:49:51,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-04-07 00:49:51,411 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:51,411 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:51,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-07 00:49:51,411 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:51,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1441142835, now seen corresponding path program 1 times [2022-04-07 00:49:51,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [163003170] [2022-04-07 00:49:51,412 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1441142835, now seen corresponding path program 2 times [2022-04-07 00:49:51,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:51,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351862470] [2022-04-07 00:49:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:51,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,453 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 00:49:51,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:51,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351862470] [2022-04-07 00:49:51,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351862470] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:51,454 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:51,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [163003170] [2022-04-07 00:49:51,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [163003170] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65241615] [2022-04-07 00:49:51,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:51,455 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:51,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:51,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:51,456 INFO L87 Difference]: Start difference. First operand 571 states and 835 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:51,737 INFO L93 Difference]: Finished difference Result 1224 states and 1828 transitions. [2022-04-07 00:49:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:51,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-04-07 00:49:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:51,741 INFO L225 Difference]: With dead ends: 1224 [2022-04-07 00:49:51,742 INFO L226 Difference]: Without dead ends: 643 [2022-04-07 00:49:51,743 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 00:49:51,744 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 339 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:51,744 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 235 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:51,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-04-07 00:49:51,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 633. [2022-04-07 00:49:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 628 states have (on average 1.4952229299363058) internal successors, (939), 628 states have internal predecessors, (939), 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 00:49:51,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 943 transitions. [2022-04-07 00:49:51,795 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 943 transitions. Word has length 43 [2022-04-07 00:49:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:51,795 INFO L478 AbstractCegarLoop]: Abstraction has 633 states and 943 transitions. [2022-04-07 00:49:51,795 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 943 transitions. [2022-04-07 00:49:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-07 00:49:51,797 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:51,797 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:51,797 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-07 00:49:51,797 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:51,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash -111424063, now seen corresponding path program 1 times [2022-04-07 00:49:51,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [417833315] [2022-04-07 00:49:51,798 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash -111424063, now seen corresponding path program 2 times [2022-04-07 00:49:51,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:51,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221834622] [2022-04-07 00:49:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:51,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,858 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 00:49:51,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:51,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221834622] [2022-04-07 00:49:51,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221834622] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:51,859 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:51,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [417833315] [2022-04-07 00:49:51,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [417833315] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:51,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563920356] [2022-04-07 00:49:51,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:51,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:49:51,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:49:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:49:51,861 INFO L87 Difference]: Start difference. First operand 633 states and 943 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 00:49:52,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:52,249 INFO L93 Difference]: Finished difference Result 1392 states and 2069 transitions. [2022-04-07 00:49:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:52,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 48 [2022-04-07 00:49:52,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:52,253 INFO L225 Difference]: With dead ends: 1392 [2022-04-07 00:49:52,254 INFO L226 Difference]: Without dead ends: 773 [2022-04-07 00:49:52,255 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-07 00:49:52,256 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 400 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:52,256 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 196 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-04-07 00:49:52,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 627. [2022-04-07 00:49:52,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 622 states have (on average 1.5096463022508038) internal successors, (939), 622 states have internal predecessors, (939), 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 00:49:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 943 transitions. [2022-04-07 00:49:52,315 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 943 transitions. Word has length 48 [2022-04-07 00:49:52,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:52,315 INFO L478 AbstractCegarLoop]: Abstraction has 627 states and 943 transitions. [2022-04-07 00:49:52,315 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 00:49:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 943 transitions. [2022-04-07 00:49:52,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-07 00:49:52,316 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:52,316 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 00:49:52,317 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-07 00:49:52,317 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:52,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1022300905, now seen corresponding path program 1 times [2022-04-07 00:49:52,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1376418431] [2022-04-07 00:49:52,318 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:52,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1022300905, now seen corresponding path program 2 times [2022-04-07 00:49:52,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:52,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849372812] [2022-04-07 00:49:52,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:52,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,358 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 00:49:52,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:52,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849372812] [2022-04-07 00:49:52,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849372812] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:52,359 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:52,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1376418431] [2022-04-07 00:49:52,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1376418431] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:52,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763966505] [2022-04-07 00:49:52,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:52,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:52,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:52,361 INFO L87 Difference]: Start difference. First operand 627 states and 943 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 00:49:52,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:52,683 INFO L93 Difference]: Finished difference Result 1334 states and 2041 transitions. [2022-04-07 00:49:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:52,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-04-07 00:49:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:52,687 INFO L225 Difference]: With dead ends: 1334 [2022-04-07 00:49:52,687 INFO L226 Difference]: Without dead ends: 721 [2022-04-07 00:49:52,689 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 00:49:52,689 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 297 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:52,690 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 238 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-04-07 00:49:52,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 701. [2022-04-07 00:49:52,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 696 states have (on average 1.4813218390804597) internal successors, (1031), 696 states have internal predecessors, (1031), 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 00:49:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1035 transitions. [2022-04-07 00:49:52,738 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1035 transitions. Word has length 51 [2022-04-07 00:49:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:52,738 INFO L478 AbstractCegarLoop]: Abstraction has 701 states and 1035 transitions. [2022-04-07 00:49:52,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 00:49:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1035 transitions. [2022-04-07 00:49:52,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-07 00:49:52,740 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:52,740 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 00:49:52,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-07 00:49:52,740 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:52,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1802448233, now seen corresponding path program 1 times [2022-04-07 00:49:52,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1941356169] [2022-04-07 00:49:52,741 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1802448233, now seen corresponding path program 2 times [2022-04-07 00:49:52,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:52,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204311380] [2022-04-07 00:49:52,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:52,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,777 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 00:49:52,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:52,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204311380] [2022-04-07 00:49:52,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204311380] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:52,778 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:52,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1941356169] [2022-04-07 00:49:52,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1941356169] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:52,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437958449] [2022-04-07 00:49:52,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:52,779 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:52,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:52,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:52,780 INFO L87 Difference]: Start difference. First operand 701 states and 1035 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 00:49:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:53,100 INFO L93 Difference]: Finished difference Result 2066 states and 3050 transitions. [2022-04-07 00:49:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:53,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 51 [2022-04-07 00:49:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:53,106 INFO L225 Difference]: With dead ends: 2066 [2022-04-07 00:49:53,106 INFO L226 Difference]: Without dead ends: 1379 [2022-04-07 00:49:53,108 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 00:49:53,109 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 558 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:53,109 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 225 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:53,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-04-07 00:49:53,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1377. [2022-04-07 00:49:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.4766763848396502) internal successors, (2026), 1372 states have internal predecessors, (2026), 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 00:49:53,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2030 transitions. [2022-04-07 00:49:53,213 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2030 transitions. Word has length 51 [2022-04-07 00:49:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:53,213 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2030 transitions. [2022-04-07 00:49:53,214 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 00:49:53,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2030 transitions. [2022-04-07 00:49:53,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-07 00:49:53,216 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:53,216 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:53,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-07 00:49:53,216 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash 821412563, now seen corresponding path program 1 times [2022-04-07 00:49:53,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1347770860] [2022-04-07 00:49:53,217 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash 821412563, now seen corresponding path program 2 times [2022-04-07 00:49:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:53,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420978011] [2022-04-07 00:49:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:53,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:53,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:53,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420978011] [2022-04-07 00:49:53,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420978011] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,264 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:53,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1347770860] [2022-04-07 00:49:53,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1347770860] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012292117] [2022-04-07 00:49:53,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:53,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:53,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:53,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:53,266 INFO L87 Difference]: Start difference. First operand 1377 states and 2030 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 00:49:53,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:53,752 INFO L93 Difference]: Finished difference Result 2953 states and 4379 transitions. [2022-04-07 00:49:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:53,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 52 [2022-04-07 00:49:53,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:53,759 INFO L225 Difference]: With dead ends: 2953 [2022-04-07 00:49:53,759 INFO L226 Difference]: Without dead ends: 1567 [2022-04-07 00:49:53,762 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 00:49:53,763 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 614 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:53,763 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 194 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:53,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-04-07 00:49:53,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1453. [2022-04-07 00:49:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1448 states have (on average 1.473756906077348) internal successors, (2134), 1448 states have internal predecessors, (2134), 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 00:49:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2138 transitions. [2022-04-07 00:49:53,912 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2138 transitions. Word has length 52 [2022-04-07 00:49:53,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:53,912 INFO L478 AbstractCegarLoop]: Abstraction has 1453 states and 2138 transitions. [2022-04-07 00:49:53,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 00:49:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2138 transitions. [2022-04-07 00:49:53,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-07 00:49:53,915 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:53,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:53,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-07 00:49:53,916 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:53,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:53,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1685857253, now seen corresponding path program 1 times [2022-04-07 00:49:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [448853385] [2022-04-07 00:49:53,932 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:53,932 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:53,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1685857253, now seen corresponding path program 2 times [2022-04-07 00:49:53,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:53,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232131891] [2022-04-07 00:49:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:53,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-07 00:49:53,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:53,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232131891] [2022-04-07 00:49:53,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232131891] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,998 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:53,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [448853385] [2022-04-07 00:49:53,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [448853385] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588394771] [2022-04-07 00:49:53,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:53,999 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:54,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:54,000 INFO L87 Difference]: Start difference. First operand 1453 states and 2138 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 00:49:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:54,451 INFO L93 Difference]: Finished difference Result 2328 states and 3430 transitions. [2022-04-07 00:49:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:54,452 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 81 [2022-04-07 00:49:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:54,455 INFO L225 Difference]: With dead ends: 2328 [2022-04-07 00:49:54,455 INFO L226 Difference]: Without dead ends: 838 [2022-04-07 00:49:54,458 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 00:49:54,460 INFO L913 BasicCegarLoop]: 172 mSDtfsCounter, 691 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:54,460 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 189 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:54,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-04-07 00:49:54,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 812. [2022-04-07 00:49:54,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 807 states have (on average 1.4510532837670385) internal successors, (1171), 807 states have internal predecessors, (1171), 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 00:49:54,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1175 transitions. [2022-04-07 00:49:54,562 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1175 transitions. Word has length 81 [2022-04-07 00:49:54,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:54,562 INFO L478 AbstractCegarLoop]: Abstraction has 812 states and 1175 transitions. [2022-04-07 00:49:54,563 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 00:49:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1175 transitions. [2022-04-07 00:49:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-07 00:49:54,567 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:54,567 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:54,567 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-07 00:49:54,567 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:54,568 INFO L85 PathProgramCache]: Analyzing trace with hash 925080400, now seen corresponding path program 1 times [2022-04-07 00:49:54,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:54,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [515390079] [2022-04-07 00:49:54,576 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:54,576 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:54,576 INFO L85 PathProgramCache]: Analyzing trace with hash 925080400, now seen corresponding path program 2 times [2022-04-07 00:49:54,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:54,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260215273] [2022-04-07 00:49:54,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:54,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:54,630 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 00:49:54,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:54,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260215273] [2022-04-07 00:49:54,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260215273] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:54,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:54,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:54,631 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:54,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [515390079] [2022-04-07 00:49:54,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [515390079] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:54,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:54,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:54,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292154769] [2022-04-07 00:49:54,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:54,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:54,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:54,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:54,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:54,633 INFO L87 Difference]: Start difference. First operand 812 states and 1175 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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 00:49:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:54,942 INFO L93 Difference]: Finished difference Result 1675 states and 2419 transitions. [2022-04-07 00:49:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:54,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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 89 [2022-04-07 00:49:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:54,946 INFO L225 Difference]: With dead ends: 1675 [2022-04-07 00:49:54,947 INFO L226 Difference]: Without dead ends: 904 [2022-04-07 00:49:54,948 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 00:49:54,949 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 245 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:54,949 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 229 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:54,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2022-04-07 00:49:55,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 896. [2022-04-07 00:49:55,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 891 states have (on average 1.4219977553310887) internal successors, (1267), 891 states have internal predecessors, (1267), 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 00:49:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1271 transitions. [2022-04-07 00:49:55,068 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1271 transitions. Word has length 89 [2022-04-07 00:49:55,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:55,068 INFO L478 AbstractCegarLoop]: Abstraction has 896 states and 1271 transitions. [2022-04-07 00:49:55,069 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 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 00:49:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1271 transitions. [2022-04-07 00:49:55,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-07 00:49:55,071 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:55,071 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-04-07 00:49:55,071 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-07 00:49:55,071 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash -257491177, now seen corresponding path program 1 times [2022-04-07 00:49:55,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1221513222] [2022-04-07 00:49:55,076 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:55,076 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:55,076 INFO L85 PathProgramCache]: Analyzing trace with hash -257491177, now seen corresponding path program 2 times [2022-04-07 00:49:55,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:55,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077281132] [2022-04-07 00:49:55,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:55,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-07 00:49:55,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:55,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077281132] [2022-04-07 00:49:55,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077281132] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:55,117 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:55,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1221513222] [2022-04-07 00:49:55,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1221513222] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136424169] [2022-04-07 00:49:55,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:55,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:55,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:55,120 INFO L87 Difference]: Start difference. First operand 896 states and 1271 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 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 00:49:55,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:55,390 INFO L93 Difference]: Finished difference Result 1823 states and 2615 transitions. [2022-04-07 00:49:55,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:55,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 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 109 [2022-04-07 00:49:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:55,394 INFO L225 Difference]: With dead ends: 1823 [2022-04-07 00:49:55,394 INFO L226 Difference]: Without dead ends: 968 [2022-04-07 00:49:55,396 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 00:49:55,397 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 416 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:55,397 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 180 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:55,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-04-07 00:49:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 940. [2022-04-07 00:49:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.3764705882352941) internal successors, (1287), 935 states have internal predecessors, (1287), 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 00:49:55,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1291 transitions. [2022-04-07 00:49:55,486 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1291 transitions. Word has length 109 [2022-04-07 00:49:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:55,486 INFO L478 AbstractCegarLoop]: Abstraction has 940 states and 1291 transitions. [2022-04-07 00:49:55,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 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 00:49:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1291 transitions. [2022-04-07 00:49:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-07 00:49:55,488 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:55,489 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2022-04-07 00:49:55,489 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-07 00:49:55,489 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:55,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:55,489 INFO L85 PathProgramCache]: Analyzing trace with hash -407928853, now seen corresponding path program 1 times [2022-04-07 00:49:55,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [891598085] [2022-04-07 00:49:55,494 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:55,494 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:55,494 INFO L85 PathProgramCache]: Analyzing trace with hash -407928853, now seen corresponding path program 2 times [2022-04-07 00:49:55,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:55,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065681222] [2022-04-07 00:49:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:55,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-07 00:49:55,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:55,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065681222] [2022-04-07 00:49:55,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065681222] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:55,544 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:55,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [891598085] [2022-04-07 00:49:55,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [891598085] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:55,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043468525] [2022-04-07 00:49:55,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:55,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:55,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:55,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:55,546 INFO L87 Difference]: Start difference. First operand 940 states and 1291 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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 00:49:55,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:55,898 INFO L93 Difference]: Finished difference Result 2730 states and 3773 transitions. [2022-04-07 00:49:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:55,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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 130 [2022-04-07 00:49:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:55,905 INFO L225 Difference]: With dead ends: 2730 [2022-04-07 00:49:55,905 INFO L226 Difference]: Without dead ends: 1831 [2022-04-07 00:49:55,908 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 00:49:55,908 INFO L913 BasicCegarLoop]: 364 mSDtfsCounter, 401 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:55,909 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 371 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:55,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2022-04-07 00:49:56,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1829. [2022-04-07 00:49:56,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1824 states have (on average 1.3771929824561404) internal successors, (2512), 1824 states have internal predecessors, (2512), 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 00:49:56,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2516 transitions. [2022-04-07 00:49:56,085 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2516 transitions. Word has length 130 [2022-04-07 00:49:56,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:56,085 INFO L478 AbstractCegarLoop]: Abstraction has 1829 states and 2516 transitions. [2022-04-07 00:49:56,085 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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 00:49:56,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2516 transitions. [2022-04-07 00:49:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-07 00:49:56,087 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:56,088 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2022-04-07 00:49:56,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-07 00:49:56,088 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:56,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:56,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1837650601, now seen corresponding path program 1 times [2022-04-07 00:49:56,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [641543786] [2022-04-07 00:49:56,093 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:56,093 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:56,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1837650601, now seen corresponding path program 2 times [2022-04-07 00:49:56,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:56,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713004643] [2022-04-07 00:49:56,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:56,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 00:49:56,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:56,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713004643] [2022-04-07 00:49:56,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713004643] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:56,131 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:56,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [641543786] [2022-04-07 00:49:56,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [641543786] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:56,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879144819] [2022-04-07 00:49:56,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:56,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:56,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:56,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:56,133 INFO L87 Difference]: Start difference. First operand 1829 states and 2516 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 00:49:56,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:56,567 INFO L93 Difference]: Finished difference Result 4430 states and 6129 transitions. [2022-04-07 00:49:56,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:56,567 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 130 [2022-04-07 00:49:56,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:56,577 INFO L225 Difference]: With dead ends: 4430 [2022-04-07 00:49:56,578 INFO L226 Difference]: Without dead ends: 2642 [2022-04-07 00:49:56,582 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 00:49:56,583 INFO L913 BasicCegarLoop]: 287 mSDtfsCounter, 481 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:56,583 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 294 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-04-07 00:49:56,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2640. [2022-04-07 00:49:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2635 states have (on average 1.3825426944971537) internal successors, (3643), 2635 states have internal predecessors, (3643), 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 00:49:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3647 transitions. [2022-04-07 00:49:56,863 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3647 transitions. Word has length 130 [2022-04-07 00:49:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:56,864 INFO L478 AbstractCegarLoop]: Abstraction has 2640 states and 3647 transitions. [2022-04-07 00:49:56,864 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 00:49:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3647 transitions. [2022-04-07 00:49:56,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-07 00:49:56,867 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:56,867 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2022-04-07 00:49:56,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-07 00:49:56,868 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:56,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:56,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1357340335, now seen corresponding path program 1 times [2022-04-07 00:49:56,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [627803281] [2022-04-07 00:49:56,872 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:56,873 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:56,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1357340335, now seen corresponding path program 2 times [2022-04-07 00:49:56,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:56,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159493979] [2022-04-07 00:49:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:56,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-04-07 00:49:56,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:56,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159493979] [2022-04-07 00:49:56,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159493979] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:56,906 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:56,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [627803281] [2022-04-07 00:49:56,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [627803281] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:56,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206985236] [2022-04-07 00:49:56,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:56,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:56,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:56,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:56,908 INFO L87 Difference]: Start difference. First operand 2640 states and 3647 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 00:49:57,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:57,356 INFO L93 Difference]: Finished difference Result 5291 states and 7315 transitions. [2022-04-07 00:49:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:57,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 131 [2022-04-07 00:49:57,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:57,367 INFO L225 Difference]: With dead ends: 5291 [2022-04-07 00:49:57,367 INFO L226 Difference]: Without dead ends: 2692 [2022-04-07 00:49:57,373 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 00:49:57,373 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 245 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:57,374 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 234 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2022-04-07 00:49:57,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 2692. [2022-04-07 00:49:57,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2687 states have (on average 1.3796055080014886) internal successors, (3707), 2687 states have internal predecessors, (3707), 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 00:49:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2022-04-07 00:49:57,613 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 131 [2022-04-07 00:49:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:57,613 INFO L478 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2022-04-07 00:49:57,613 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 00:49:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2022-04-07 00:49:57,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-07 00:49:57,618 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:57,618 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:57,618 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-07 00:49:57,618 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:57,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:57,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1065449283, now seen corresponding path program 1 times [2022-04-07 00:49:57,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:57,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2143109336] [2022-04-07 00:49:57,625 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:57,625 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:57,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1065449283, now seen corresponding path program 2 times [2022-04-07 00:49:57,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:57,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362780038] [2022-04-07 00:49:57,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:57,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-04-07 00:49:57,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:57,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362780038] [2022-04-07 00:49:57,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362780038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:57,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:57,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:57,669 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:57,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2143109336] [2022-04-07 00:49:57,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2143109336] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:57,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:57,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322525181] [2022-04-07 00:49:57,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:57,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:57,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:57,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:57,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:57,670 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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 00:49:58,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:58,140 INFO L93 Difference]: Finished difference Result 5467 states and 7543 transitions. [2022-04-07 00:49:58,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:58,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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 174 [2022-04-07 00:49:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:58,151 INFO L225 Difference]: With dead ends: 5467 [2022-04-07 00:49:58,152 INFO L226 Difference]: Without dead ends: 2816 [2022-04-07 00:49:58,157 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 00:49:58,158 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 234 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:58,158 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 238 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:58,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2022-04-07 00:49:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2792. [2022-04-07 00:49:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.3745963401506998) internal successors, (3831), 2787 states have internal predecessors, (3831), 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 00:49:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3835 transitions. [2022-04-07 00:49:58,455 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3835 transitions. Word has length 174 [2022-04-07 00:49:58,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:58,456 INFO L478 AbstractCegarLoop]: Abstraction has 2792 states and 3835 transitions. [2022-04-07 00:49:58,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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 00:49:58,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3835 transitions. [2022-04-07 00:49:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-04-07 00:49:58,461 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:58,461 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:58,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-07 00:49:58,462 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:58,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:58,462 INFO L85 PathProgramCache]: Analyzing trace with hash 332540075, now seen corresponding path program 1 times [2022-04-07 00:49:58,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:58,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [306867529] [2022-04-07 00:49:58,469 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:58,470 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 332540075, now seen corresponding path program 2 times [2022-04-07 00:49:58,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:58,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966948482] [2022-04-07 00:49:58,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:58,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:58,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-04-07 00:49:58,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:58,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966948482] [2022-04-07 00:49:58,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966948482] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:58,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:58,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:58,519 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:58,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [306867529] [2022-04-07 00:49:58,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [306867529] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:58,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:58,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:58,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739022251] [2022-04-07 00:49:58,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:58,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:58,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:58,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:58,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:58,522 INFO L87 Difference]: Start difference. First operand 2792 states and 3835 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 00:49:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:59,022 INFO L93 Difference]: Finished difference Result 5641 states and 7790 transitions. [2022-04-07 00:49:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:49:59,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 188 [2022-04-07 00:49:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:59,034 INFO L225 Difference]: With dead ends: 5641 [2022-04-07 00:49:59,034 INFO L226 Difference]: Without dead ends: 2884 [2022-04-07 00:49:59,043 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 00:49:59,044 INFO L913 BasicCegarLoop]: 174 mSDtfsCounter, 431 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:59,044 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 181 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:59,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2022-04-07 00:49:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2858. [2022-04-07 00:49:59,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 2853 states have (on average 1.370136698212408) internal successors, (3909), 2853 states have internal predecessors, (3909), 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 00:49:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 3913 transitions. [2022-04-07 00:49:59,346 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 3913 transitions. Word has length 188 [2022-04-07 00:49:59,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:59,346 INFO L478 AbstractCegarLoop]: Abstraction has 2858 states and 3913 transitions. [2022-04-07 00:49:59,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 00:49:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 3913 transitions. [2022-04-07 00:49:59,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-07 00:49:59,352 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:59,352 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:59,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-07 00:49:59,352 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:59,353 INFO L85 PathProgramCache]: Analyzing trace with hash 965319883, now seen corresponding path program 1 times [2022-04-07 00:49:59,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:59,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [521651314] [2022-04-07 00:49:59,369 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:59,369 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:59,369 INFO L85 PathProgramCache]: Analyzing trace with hash 965319883, now seen corresponding path program 2 times [2022-04-07 00:49:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:59,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603074676] [2022-04-07 00:49:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:59,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-04-07 00:49:59,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:59,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603074676] [2022-04-07 00:49:59,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603074676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:59,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:59,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:59,413 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:59,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [521651314] [2022-04-07 00:49:59,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [521651314] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:59,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:59,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:49:59,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40790152] [2022-04-07 00:49:59,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:59,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:49:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:49:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:49:59,415 INFO L87 Difference]: Start difference. First operand 2858 states and 3913 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 00:50:00,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:00,134 INFO L93 Difference]: Finished difference Result 8450 states and 11571 transitions. [2022-04-07 00:50:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:00,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 196 [2022-04-07 00:50:00,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:00,168 INFO L225 Difference]: With dead ends: 8450 [2022-04-07 00:50:00,169 INFO L226 Difference]: Without dead ends: 5633 [2022-04-07 00:50:00,177 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 00:50:00,179 INFO L913 BasicCegarLoop]: 310 mSDtfsCounter, 502 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:00,179 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 317 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:00,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2022-04-07 00:50:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 2864. [2022-04-07 00:50:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2864 states, 2859 states have (on average 1.3693599160545646) internal successors, (3915), 2859 states have internal predecessors, (3915), 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 00:50:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 3919 transitions. [2022-04-07 00:50:00,527 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 3919 transitions. Word has length 196 [2022-04-07 00:50:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:00,528 INFO L478 AbstractCegarLoop]: Abstraction has 2864 states and 3919 transitions. [2022-04-07 00:50:00,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 00:50:00,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 3919 transitions. [2022-04-07 00:50:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-07 00:50:00,533 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:00,533 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:00,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-07 00:50:00,533 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:00,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:00,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1901584278, now seen corresponding path program 1 times [2022-04-07 00:50:00,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:00,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [140330123] [2022-04-07 00:50:00,541 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:00,541 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:00,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1901584278, now seen corresponding path program 2 times [2022-04-07 00:50:00,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:00,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709560706] [2022-04-07 00:50:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:00,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-07 00:50:00,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:00,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709560706] [2022-04-07 00:50:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709560706] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:00,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:00,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:00,591 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:00,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [140330123] [2022-04-07 00:50:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [140330123] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:00,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:00,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:00,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306206511] [2022-04-07 00:50:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:00,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:00,593 INFO L87 Difference]: Start difference. First operand 2864 states and 3919 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 00:50:01,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:01,177 INFO L93 Difference]: Finished difference Result 5909 states and 8123 transitions. [2022-04-07 00:50:01,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:01,181 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 196 [2022-04-07 00:50:01,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:01,189 INFO L225 Difference]: With dead ends: 5909 [2022-04-07 00:50:01,189 INFO L226 Difference]: Without dead ends: 3086 [2022-04-07 00:50:01,196 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 00:50:01,197 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 247 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:01,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 237 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2022-04-07 00:50:01,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 3038. [2022-04-07 00:50:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 3033 states have (on average 1.3600395647873393) internal successors, (4125), 3033 states have internal predecessors, (4125), 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 00:50:01,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4129 transitions. [2022-04-07 00:50:01,520 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4129 transitions. Word has length 196 [2022-04-07 00:50:01,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:01,520 INFO L478 AbstractCegarLoop]: Abstraction has 3038 states and 4129 transitions. [2022-04-07 00:50:01,521 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 00:50:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4129 transitions. [2022-04-07 00:50:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-07 00:50:01,526 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:01,526 INFO L499 BasicCegarLoop]: trace histogram [7, 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 00:50:01,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-07 00:50:01,527 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:01,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:01,527 INFO L85 PathProgramCache]: Analyzing trace with hash 604034522, now seen corresponding path program 1 times [2022-04-07 00:50:01,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:01,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [562160959] [2022-04-07 00:50:01,534 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:01,534 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:01,534 INFO L85 PathProgramCache]: Analyzing trace with hash 604034522, now seen corresponding path program 2 times [2022-04-07 00:50:01,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:01,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218181066] [2022-04-07 00:50:01,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:01,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:01,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-04-07 00:50:01,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:01,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218181066] [2022-04-07 00:50:01,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218181066] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:01,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:01,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:01,622 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:01,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [562160959] [2022-04-07 00:50:01,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [562160959] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:01,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:01,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265721253] [2022-04-07 00:50:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:01,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:01,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:01,624 INFO L87 Difference]: Start difference. First operand 3038 states and 4129 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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 00:50:02,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:02,803 INFO L93 Difference]: Finished difference Result 8972 states and 12189 transitions. [2022-04-07 00:50:02,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:02,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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 198 [2022-04-07 00:50:02,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:02,814 INFO L225 Difference]: With dead ends: 8972 [2022-04-07 00:50:02,815 INFO L226 Difference]: Without dead ends: 5975 [2022-04-07 00:50:02,821 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 00:50:02,822 INFO L913 BasicCegarLoop]: 399 mSDtfsCounter, 403 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:02,822 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 406 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:02,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2022-04-07 00:50:03,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 3038. [2022-04-07 00:50:03,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 3033 states have (on average 1.358061325420376) internal successors, (4119), 3033 states have internal predecessors, (4119), 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 00:50:03,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4123 transitions. [2022-04-07 00:50:03,231 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4123 transitions. Word has length 198 [2022-04-07 00:50:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:03,232 INFO L478 AbstractCegarLoop]: Abstraction has 3038 states and 4123 transitions. [2022-04-07 00:50:03,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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 00:50:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4123 transitions. [2022-04-07 00:50:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-07 00:50:03,238 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:03,238 INFO L499 BasicCegarLoop]: trace histogram [7, 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 00:50:03,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-07 00:50:03,238 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:03,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:03,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1788512263, now seen corresponding path program 1 times [2022-04-07 00:50:03,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:03,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2146313295] [2022-04-07 00:50:03,246 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:03,247 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:03,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1788512263, now seen corresponding path program 2 times [2022-04-07 00:50:03,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:03,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869736979] [2022-04-07 00:50:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:03,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 00:50:03,273 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-07 00:50:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 00:50:03,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-07 00:50:03,385 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-07 00:50:03,385 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-07 00:50:03,393 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 00:50:03,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-07 00:50:03,400 INFO L719 BasicCegarLoop]: Path program 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] [2022-04-07 00:50:03,403 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 00:50:03,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 12:50:03 BoogieIcfgContainer [2022-04-07 00:50:03,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 00:50:03,450 INFO L158 Benchmark]: Toolchain (without parser) took 16787.87ms. Allocated memory was 204.5MB in the beginning and 1.1GB in the end (delta: 847.2MB). Free memory was 156.5MB in the beginning and 480.4MB in the end (delta: -324.0MB). Peak memory consumption was 523.6MB. Max. memory is 8.0GB. [2022-04-07 00:50:03,450 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 204.5MB. Free memory is still 173.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 00:50:03,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.84ms. Allocated memory is still 204.5MB. Free memory was 156.3MB in the beginning and 179.0MB in the end (delta: -22.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-07 00:50:03,451 INFO L158 Benchmark]: Boogie Preprocessor took 51.91ms. Allocated memory is still 204.5MB. Free memory was 179.0MB in the beginning and 176.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-04-07 00:50:03,451 INFO L158 Benchmark]: RCFGBuilder took 639.04ms. Allocated memory is still 204.5MB. Free memory was 176.3MB in the beginning and 148.0MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-04-07 00:50:03,451 INFO L158 Benchmark]: TraceAbstraction took 15775.16ms. Allocated memory was 204.5MB in the beginning and 1.1GB in the end (delta: 847.2MB). Free memory was 147.5MB in the beginning and 480.4MB in the end (delta: -332.9MB). Peak memory consumption was 515.4MB. Max. memory is 8.0GB. [2022-04-07 00:50:03,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 204.5MB. Free memory is still 173.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 316.84ms. Allocated memory is still 204.5MB. Free memory was 156.3MB in the beginning and 179.0MB in the end (delta: -22.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.91ms. Allocated memory is still 204.5MB. Free memory was 179.0MB in the beginning and 176.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 639.04ms. Allocated memory is still 204.5MB. Free memory was 176.3MB in the beginning and 148.0MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 15775.16ms. Allocated memory was 204.5MB in the beginning and 1.1GB in the end (delta: 847.2MB). Free memory was 147.5MB in the beginning and 480.4MB in the end (delta: -332.9MB). Peak memory consumption was 515.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 642]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L653] CALL ssl3_accept(s) [L24] int s__info_callback = __VERIFIER_nondet_int() ; [L25] int s__in_handshake = __VERIFIER_nondet_int() ; [L26] int s__state ; [L27] int s__new_session ; [L28] int s__server ; [L29] int s__version = __VERIFIER_nondet_int() ; [L30] int s__type ; [L31] int s__init_num ; [L32] int s__hit = __VERIFIER_nondet_int() ; [L33] int s__rwstate ; [L34] int s__init_buf___0 = 1; [L35] int s__debug = __VERIFIER_nondet_int() ; [L36] int s__shutdown ; [L37] int s__cert = __VERIFIER_nondet_int() ; [L38] int s__options = __VERIFIER_nondet_int() ; [L39] int s__verify_mode = __VERIFIER_nondet_int() ; [L40] int s__session__peer = __VERIFIER_nondet_int() ; [L41] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L42] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L43] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L44] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L45] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L46] int s__s3__tmp__cert_request ; [L47] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L48] int s__s3__tmp__use_rsa_tmp ; [L49] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L50] int s__s3__tmp__new_cipher__algorithms ; [L51] int s__s3__tmp__next_state___0 ; [L52] int s__s3__tmp__new_cipher__algo_strength ; [L53] int s__session__cipher ; [L54] int buf ; [L55] unsigned long l ; [L56] unsigned long Time ; [L57] unsigned long tmp ; [L58] int cb ; [L59] long num1 = __VERIFIER_nondet_long() ; [L60] int ret ; [L61] int new_state ; [L62] int state ; [L63] int skip ; [L64] int got_new_session ; [L65] int tmp___1 = __VERIFIER_nondet_int() ; [L66] int tmp___2 = __VERIFIER_nondet_int() ; [L67] int tmp___3 = __VERIFIER_nondet_int() ; [L68] int tmp___4 = __VERIFIER_nondet_int() ; [L69] int tmp___5 = __VERIFIER_nondet_int() ; [L70] int tmp___6 = __VERIFIER_nondet_int() ; [L71] int tmp___7 = __VERIFIER_nondet_int() ; [L72] long tmp___8 = __VERIFIER_nondet_long() ; [L73] int tmp___9 = __VERIFIER_nondet_int() ; [L74] int tmp___10 = __VERIFIER_nondet_int() ; [L75] int blastFlag ; [L76] int __cil_tmp55 ; [L77] unsigned long __cil_tmp56 ; [L78] unsigned long __cil_tmp57 ; [L79] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L80] unsigned long __cil_tmp59 ; [L81] int __cil_tmp60 ; [L82] unsigned long __cil_tmp61 ; [L85] s__state = initial_state [L86] blastFlag = 0 [L87] tmp = __VERIFIER_nondet_int() [L88] Time = tmp [L89] cb = 0 [L90] ret = -1 [L91] skip = 0 [L92] got_new_session = 0 [L93] COND TRUE s__info_callback != 0 [L94] cb = s__info_callback [L100] s__in_handshake ++ [L101] COND TRUE tmp___1 + 12288 [L102] COND TRUE tmp___2 + 16384 [L106] COND FALSE !(s__cert == 0) [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND TRUE s__state == 8464 [L283] s__shutdown = 0 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 0 [L286] blastFlag = 1 [L288] COND FALSE !(ret <= 0) [L291] got_new_session = 1 [L292] s__state = 8496 [L293] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND TRUE s__state == 8496 [L297] ret = __VERIFIER_nondet_int() [L298] COND TRUE blastFlag == 1 [L299] blastFlag = 2 [L305] COND FALSE !(ret <= 0) [L308] COND FALSE !(\read(s__hit)) [L311] s__state = 8512 [L313] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND TRUE s__state == 8512 [L318] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L319] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L320] COND TRUE __cil_tmp56 + 256UL [L321] skip = 1 [L329] s__state = 8528 [L330] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND TRUE s__state == 8528 [L334] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L335] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L337] __cil_tmp57 = (unsigned long )s__options [L338] COND TRUE __cil_tmp57 + 2097152UL [L339] s__s3__tmp__use_rsa_tmp = 1 [L344] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L371] ret = __VERIFIER_nondet_int() [L372] COND FALSE !(ret <= 0) [L389] s__state = 8544 [L390] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND TRUE s__state == 8544 [L394] COND TRUE s__verify_mode + 1 [L395] COND FALSE !(s__session__peer != 0) [L406] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L407] __cil_tmp61 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L408] COND FALSE !(__cil_tmp61 + 256UL) [L418] s__s3__tmp__cert_request = 1 [L419] ret = __VERIFIER_nondet_int() [L420] COND FALSE !(ret <= 0) [L423] s__state = 8448 [L424] s__s3__tmp__next_state___0 = 8576 [L425] s__init_num = 0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND FALSE !(s__state == 8544) [L167] COND FALSE !(s__state == 8545) [L170] COND FALSE !(s__state == 8560) [L173] COND FALSE !(s__state == 8561) [L176] COND TRUE s__state == 8448 [L446] COND FALSE !(num1 > 0L) [L455] s__state = s__s3__tmp__next_state___0 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND FALSE !(state == 8576) [L631] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND FALSE !(s__state == 8544) [L167] COND FALSE !(s__state == 8545) [L170] COND FALSE !(s__state == 8560) [L173] COND FALSE !(s__state == 8561) [L176] COND FALSE !(s__state == 8448) [L179] COND TRUE s__state == 8576 [L459] ret = __VERIFIER_nondet_int() [L460] COND FALSE !(ret <= 0) [L463] COND FALSE !(ret == 2) [L466] ret = __VERIFIER_nondet_int() [L467] COND FALSE !(ret <= 0) [L470] s__init_num = 0 [L471] s__state = 8592 [L596] COND FALSE !(! s__s3__tmp__reuse_message) [L614] COND TRUE state == 8576 [L615] COND TRUE s__state == 8592 [L616] COND TRUE tmp___1 != -12288 [L617] COND TRUE tmp___2 != -16384 [L618] COND TRUE __cil_tmp56 != 4294967040 [L619] COND TRUE __cil_tmp58 != 4294967294 [L620] COND TRUE tmp___7 != 1024 [L621] COND TRUE tmp___7 != 512 [L642] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 161 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 24, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9219 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9218 mSDsluCounter, 5562 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 567 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5888 IncrementalHoareTripleChecker+Invalid, 6455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 567 mSolverCounterUnsat, 5364 mSDtfsCounter, 5888 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3038occurred in iteration=22, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 6284 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-07 00:50:03,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...