/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-05ce600 [2022-02-24 04:16:20,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 04:16:20,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 04:16:20,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 04:16:20,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 04:16:20,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 04:16:20,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 04:16:20,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 04:16:20,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 04:16:20,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 04:16:20,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 04:16:20,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 04:16:20,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 04:16:20,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 04:16:20,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 04:16:20,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 04:16:20,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 04:16:20,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 04:16:20,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 04:16:20,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 04:16:20,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-24 04:16:20,866 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 04:16:20,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 04:16:20,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 04:16:20,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 04:16:20,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 04:16:20,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 04:16:20,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 04:16:20,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 04:16:20,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 04:16:20,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 04:16:20,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 04:16:20,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 04:16:20,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 04:16:20,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 04:16:20,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 04:16:20,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 04:16:20,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 04:16:20,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 04:16:20,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 04:16:20,869 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 04:16:20,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 04:16:21,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 04:16:21,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 04:16:21,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 04:16:21,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 04:16:21,116 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 04:16:21,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c [2022-02-24 04:16:21,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc797440/440dde19dd554661846ff15ddd7c877c/FLAG8e27445f0 [2022-02-24 04:16:21,486 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 04:16:21,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c [2022-02-24 04:16:21,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc797440/440dde19dd554661846ff15ddd7c877c/FLAG8e27445f0 [2022-02-24 04:16:21,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc797440/440dde19dd554661846ff15ddd7c877c [2022-02-24 04:16:21,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 04:16:21,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 04:16:21,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 04:16:21,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 04:16:21,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 04:16:21,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:16:21" (1/1) ... [2022-02-24 04:16:21,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41395bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:21, skipping insertion in model container [2022-02-24 04:16:21,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:16:21" (1/1) ... [2022-02-24 04:16:21,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 04:16:21,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 04:16:22,160 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] [2022-02-24 04:16:22,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 04:16:22,170 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 04:16:22,232 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] [2022-02-24 04:16:22,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 04:16:22,243 INFO L208 MainTranslator]: Completed translation [2022-02-24 04:16:22,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22 WrapperNode [2022-02-24 04:16:22,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 04:16:22,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 04:16:22,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 04:16:22,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 04:16:22,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 04:16:22,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 04:16:22,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 04:16:22,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 04:16:22,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (1/1) ... [2022-02-24 04:16:22,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 04:16:22,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 04:16:22,308 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) [2022-02-24 04:16:22,309 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 [2022-02-24 04:16:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 04:16:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 04:16:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 04:16:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 04:16:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 04:16:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 04:16:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 04:16:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 04:16:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 04:16:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 04:16:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 04:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 04:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 04:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 04:16:22,418 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 04:16:22,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 04:16:22,481 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 04:16:22,788 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-24 04:16:22,788 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-24 04:16:22,796 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 04:16:22,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 04:16:22,802 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 04:16:22,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:16:22 BoogieIcfgContainer [2022-02-24 04:16:22,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 04:16:22,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 04:16:22,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 04:16:22,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 04:16:22,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:16:21" (1/3) ... [2022-02-24 04:16:22,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf1b2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:16:22, skipping insertion in model container [2022-02-24 04:16:22,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:22" (2/3) ... [2022-02-24 04:16:22,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf1b2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:16:22, skipping insertion in model container [2022-02-24 04:16:22,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:16:22" (3/3) ... [2022-02-24 04:16:22,810 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_11.cil.c [2022-02-24 04:16:22,814 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 04:16:22,814 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 04:16:22,840 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 04:16:22,845 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, 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, mLoopAccelerationTechnique=QVASR [2022-02-24 04:16:22,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 04:16:22,859 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) [2022-02-24 04:16:22,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-02-24 04:16:22,868 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:22,869 INFO L514 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] [2022-02-24 04:16:22,869 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:22,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:22,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1730008188, now seen corresponding path program 1 times [2022-02-24 04:16:22,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:22,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168920190] [2022-02-24 04:16:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:22,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:22,919 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:23,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:23,088 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:23,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168920190] [2022-02-24 04:16:23,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1168920190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:23,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:23,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:23,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391250022] [2022-02-24 04:16:23,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:23,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:23,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:23,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:23,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:23,122 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) [2022-02-24 04:16:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:23,585 INFO L93 Difference]: Finished difference Result 365 states and 628 transitions. [2022-02-24 04:16:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:23,587 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 [2022-02-24 04:16:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:23,593 INFO L225 Difference]: With dead ends: 365 [2022-02-24 04:16:23,593 INFO L226 Difference]: Without dead ends: 186 [2022-02-24 04:16:23,595 INFO L932 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 [2022-02-24 04:16:23,597 INFO L933 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, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:23,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 290 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 04:16:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-02-24 04:16:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2022-02-24 04:16:23,633 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) [2022-02-24 04:16:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 271 transitions. [2022-02-24 04:16:23,635 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 271 transitions. Word has length 32 [2022-02-24 04:16:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:23,636 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 271 transitions. [2022-02-24 04:16:23,636 INFO L471 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) [2022-02-24 04:16:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 271 transitions. [2022-02-24 04:16:23,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-24 04:16:23,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:23,637 INFO L514 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] [2022-02-24 04:16:23,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 04:16:23,637 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:23,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:23,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1886345113, now seen corresponding path program 1 times [2022-02-24 04:16:23,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:23,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081144079] [2022-02-24 04:16:23,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:23,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:23,640 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:23,691 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:23,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081144079] [2022-02-24 04:16:23,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2081144079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:23,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:23,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 04:16:23,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048122910] [2022-02-24 04:16:23,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:23,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 04:16:23,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:23,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 04:16:23,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 04:16:23,693 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) [2022-02-24 04:16:23,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:23,977 INFO L93 Difference]: Finished difference Result 385 states and 567 transitions. [2022-02-24 04:16:23,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 04:16:23,977 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 [2022-02-24 04:16:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:23,979 INFO L225 Difference]: With dead ends: 385 [2022-02-24 04:16:23,979 INFO L226 Difference]: Without dead ends: 214 [2022-02-24 04:16:23,980 INFO L932 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 [2022-02-24 04:16:23,981 INFO L933 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:23,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 185 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:16:23,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-24 04:16:23,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 193. [2022-02-24 04:16:23,999 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) [2022-02-24 04:16:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 284 transitions. [2022-02-24 04:16:24,000 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 284 transitions. Word has length 33 [2022-02-24 04:16:24,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:24,000 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 284 transitions. [2022-02-24 04:16:24,001 INFO L471 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) [2022-02-24 04:16:24,001 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 284 transitions. [2022-02-24 04:16:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-24 04:16:24,002 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:24,002 INFO L514 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] [2022-02-24 04:16:24,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 04:16:24,002 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:24,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:24,002 INFO L85 PathProgramCache]: Analyzing trace with hash -818420097, now seen corresponding path program 1 times [2022-02-24 04:16:24,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:24,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442988488] [2022-02-24 04:16:24,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:24,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:24,004 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:24,048 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:24,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442988488] [2022-02-24 04:16:24,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [442988488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:24,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:24,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 04:16:24,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372745499] [2022-02-24 04:16:24,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:24,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 04:16:24,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:24,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 04:16:24,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 04:16:24,050 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) [2022-02-24 04:16:24,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:24,309 INFO L93 Difference]: Finished difference Result 411 states and 605 transitions. [2022-02-24 04:16:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 04:16:24,310 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 [2022-02-24 04:16:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:24,312 INFO L225 Difference]: With dead ends: 411 [2022-02-24 04:16:24,312 INFO L226 Difference]: Without dead ends: 232 [2022-02-24 04:16:24,315 INFO L932 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 [2022-02-24 04:16:24,320 INFO L933 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:24,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 196 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:16:24,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-02-24 04:16:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2022-02-24 04:16:24,348 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) [2022-02-24 04:16:24,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 295 transitions. [2022-02-24 04:16:24,349 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 295 transitions. Word has length 35 [2022-02-24 04:16:24,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:24,350 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 295 transitions. [2022-02-24 04:16:24,350 INFO L471 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) [2022-02-24 04:16:24,350 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 295 transitions. [2022-02-24 04:16:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-24 04:16:24,359 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:24,359 INFO L514 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] [2022-02-24 04:16:24,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 04:16:24,360 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash -148338235, now seen corresponding path program 1 times [2022-02-24 04:16:24,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:24,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000380973] [2022-02-24 04:16:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:24,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:24,364 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:24,440 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:24,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000380973] [2022-02-24 04:16:24,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1000380973] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:24,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:24,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:24,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530631593] [2022-02-24 04:16:24,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:24,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:24,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:24,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:24,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:24,443 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) [2022-02-24 04:16:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:24,660 INFO L93 Difference]: Finished difference Result 441 states and 666 transitions. [2022-02-24 04:16:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:24,660 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 [2022-02-24 04:16:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:24,661 INFO L225 Difference]: With dead ends: 441 [2022-02-24 04:16:24,661 INFO L226 Difference]: Without dead ends: 241 [2022-02-24 04:16:24,671 INFO L932 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 [2022-02-24 04:16:24,672 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 310 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-24 04:16:24,672 INFO L934 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] [2022-02-24 04:16:24,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-02-24 04:16:24,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 225. [2022-02-24 04:16:24,687 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) [2022-02-24 04:16:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 333 transitions. [2022-02-24 04:16:24,688 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 333 transitions. Word has length 36 [2022-02-24 04:16:24,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:24,688 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 333 transitions. [2022-02-24 04:16:24,688 INFO L471 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) [2022-02-24 04:16:24,688 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 333 transitions. [2022-02-24 04:16:24,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-24 04:16:24,689 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:24,689 INFO L514 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] [2022-02-24 04:16:24,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 04:16:24,689 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:24,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:24,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1107449201, now seen corresponding path program 1 times [2022-02-24 04:16:24,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:24,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616780167] [2022-02-24 04:16:24,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:24,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:24,692 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:24,734 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:24,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616780167] [2022-02-24 04:16:24,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [616780167] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:24,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:24,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:24,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695720336] [2022-02-24 04:16:24,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:24,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:24,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:24,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:24,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:24,735 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) [2022-02-24 04:16:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:24,916 INFO L93 Difference]: Finished difference Result 646 states and 962 transitions. [2022-02-24 04:16:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:24,917 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 [2022-02-24 04:16:24,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:24,918 INFO L225 Difference]: With dead ends: 646 [2022-02-24 04:16:24,918 INFO L226 Difference]: Without dead ends: 435 [2022-02-24 04:16:24,919 INFO L932 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 [2022-02-24 04:16:24,920 INFO L933 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:24,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 220 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 04:16:24,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-02-24 04:16:24,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2022-02-24 04:16:24,945 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) [2022-02-24 04:16:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 641 transitions. [2022-02-24 04:16:24,947 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 641 transitions. Word has length 41 [2022-02-24 04:16:24,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:24,947 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 641 transitions. [2022-02-24 04:16:24,948 INFO L471 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) [2022-02-24 04:16:24,948 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 641 transitions. [2022-02-24 04:16:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-24 04:16:24,948 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:24,949 INFO L514 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] [2022-02-24 04:16:24,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 04:16:24,949 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:24,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1540817245, now seen corresponding path program 1 times [2022-02-24 04:16:24,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:24,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38467745] [2022-02-24 04:16:24,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:24,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:24,951 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:24,979 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:24,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38467745] [2022-02-24 04:16:24,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [38467745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:24,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:24,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:24,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178039196] [2022-02-24 04:16:24,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:24,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:24,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:24,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:24,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:24,980 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) [2022-02-24 04:16:25,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:25,201 INFO L93 Difference]: Finished difference Result 972 states and 1480 transitions. [2022-02-24 04:16:25,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:25,202 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 [2022-02-24 04:16:25,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:25,204 INFO L225 Difference]: With dead ends: 972 [2022-02-24 04:16:25,204 INFO L226 Difference]: Without dead ends: 529 [2022-02-24 04:16:25,205 INFO L932 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 [2022-02-24 04:16:25,205 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 348 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-24 04:16:25,206 INFO L934 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] [2022-02-24 04:16:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-02-24 04:16:25,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 489. [2022-02-24 04:16:25,232 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) [2022-02-24 04:16:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 735 transitions. [2022-02-24 04:16:25,235 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 735 transitions. Word has length 41 [2022-02-24 04:16:25,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:25,235 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 735 transitions. [2022-02-24 04:16:25,235 INFO L471 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) [2022-02-24 04:16:25,235 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 735 transitions. [2022-02-24 04:16:25,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-24 04:16:25,236 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:25,237 INFO L514 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] [2022-02-24 04:16:25,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 04:16:25,237 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:25,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:25,237 INFO L85 PathProgramCache]: Analyzing trace with hash 162840181, now seen corresponding path program 1 times [2022-02-24 04:16:25,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:25,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627779987] [2022-02-24 04:16:25,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:25,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:25,239 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:25,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:25,288 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:25,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627779987] [2022-02-24 04:16:25,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1627779987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:25,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:25,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:25,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779265988] [2022-02-24 04:16:25,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:25,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:25,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:25,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:25,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:25,289 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) [2022-02-24 04:16:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:25,516 INFO L93 Difference]: Finished difference Result 1058 states and 1625 transitions. [2022-02-24 04:16:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:25,516 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 [2022-02-24 04:16:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:25,518 INFO L225 Difference]: With dead ends: 1058 [2022-02-24 04:16:25,518 INFO L226 Difference]: Without dead ends: 583 [2022-02-24 04:16:25,519 INFO L932 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 [2022-02-24 04:16:25,521 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:25,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 238 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:16:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-02-24 04:16:25,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 571. [2022-02-24 04:16:25,548 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) [2022-02-24 04:16:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 835 transitions. [2022-02-24 04:16:25,550 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 835 transitions. Word has length 42 [2022-02-24 04:16:25,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:25,552 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 835 transitions. [2022-02-24 04:16:25,552 INFO L471 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) [2022-02-24 04:16:25,552 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 835 transitions. [2022-02-24 04:16:25,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-24 04:16:25,552 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:25,552 INFO L514 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] [2022-02-24 04:16:25,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 04:16:25,553 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:25,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1441142835, now seen corresponding path program 1 times [2022-02-24 04:16:25,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:25,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844084138] [2022-02-24 04:16:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:25,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:25,556 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:25,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:25,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:25,598 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:25,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844084138] [2022-02-24 04:16:25,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1844084138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:25,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:25,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:25,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122273519] [2022-02-24 04:16:25,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:25,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:25,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:25,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:25,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:25,601 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) [2022-02-24 04:16:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:25,791 INFO L93 Difference]: Finished difference Result 1224 states and 1828 transitions. [2022-02-24 04:16:25,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:25,792 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 [2022-02-24 04:16:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:25,794 INFO L225 Difference]: With dead ends: 1224 [2022-02-24 04:16:25,794 INFO L226 Difference]: Without dead ends: 643 [2022-02-24 04:16:25,795 INFO L932 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 [2022-02-24 04:16:25,796 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 339 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:25,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 235 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 04:16:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-02-24 04:16:25,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 633. [2022-02-24 04:16:25,821 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) [2022-02-24 04:16:25,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 943 transitions. [2022-02-24 04:16:25,823 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 943 transitions. Word has length 43 [2022-02-24 04:16:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:25,824 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 943 transitions. [2022-02-24 04:16:25,824 INFO L471 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) [2022-02-24 04:16:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 943 transitions. [2022-02-24 04:16:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-24 04:16:25,825 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:25,825 INFO L514 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] [2022-02-24 04:16:25,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 04:16:25,826 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:25,826 INFO L85 PathProgramCache]: Analyzing trace with hash -111424063, now seen corresponding path program 1 times [2022-02-24 04:16:25,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:25,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173961100] [2022-02-24 04:16:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:25,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:25,828 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:25,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:25,878 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:25,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173961100] [2022-02-24 04:16:25,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [173961100] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:25,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:25,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 04:16:25,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965487175] [2022-02-24 04:16:25,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:25,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 04:16:25,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:25,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 04:16:25,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 04:16:25,879 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) [2022-02-24 04:16:26,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:26,176 INFO L93 Difference]: Finished difference Result 1392 states and 2069 transitions. [2022-02-24 04:16:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 04:16:26,176 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 [2022-02-24 04:16:26,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:26,179 INFO L225 Difference]: With dead ends: 1392 [2022-02-24 04:16:26,180 INFO L226 Difference]: Without dead ends: 773 [2022-02-24 04:16:26,181 INFO L932 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 [2022-02-24 04:16:26,182 INFO L933 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:26,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 196 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:16:26,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-02-24 04:16:26,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 627. [2022-02-24 04:16:26,210 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) [2022-02-24 04:16:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 943 transitions. [2022-02-24 04:16:26,212 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 943 transitions. Word has length 48 [2022-02-24 04:16:26,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:26,212 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 943 transitions. [2022-02-24 04:16:26,212 INFO L471 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) [2022-02-24 04:16:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 943 transitions. [2022-02-24 04:16:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-24 04:16:26,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:26,213 INFO L514 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] [2022-02-24 04:16:26,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 04:16:26,213 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:26,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1022300905, now seen corresponding path program 1 times [2022-02-24 04:16:26,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:26,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891403] [2022-02-24 04:16:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:26,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:26,215 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:26,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:26,251 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:26,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891403] [2022-02-24 04:16:26,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [891403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:26,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:26,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:26,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400505755] [2022-02-24 04:16:26,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:26,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:26,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:26,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:26,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:26,252 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) [2022-02-24 04:16:26,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:26,477 INFO L93 Difference]: Finished difference Result 1334 states and 2041 transitions. [2022-02-24 04:16:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:26,477 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 [2022-02-24 04:16:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:26,480 INFO L225 Difference]: With dead ends: 1334 [2022-02-24 04:16:26,480 INFO L226 Difference]: Without dead ends: 721 [2022-02-24 04:16:26,481 INFO L932 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 [2022-02-24 04:16:26,481 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 297 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:26,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 238 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:16:26,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-02-24 04:16:26,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 701. [2022-02-24 04:16:26,511 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) [2022-02-24 04:16:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1035 transitions. [2022-02-24 04:16:26,514 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1035 transitions. Word has length 51 [2022-02-24 04:16:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:26,514 INFO L470 AbstractCegarLoop]: Abstraction has 701 states and 1035 transitions. [2022-02-24 04:16:26,515 INFO L471 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) [2022-02-24 04:16:26,515 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1035 transitions. [2022-02-24 04:16:26,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-24 04:16:26,516 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:26,516 INFO L514 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] [2022-02-24 04:16:26,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 04:16:26,516 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:26,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1802448233, now seen corresponding path program 1 times [2022-02-24 04:16:26,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:26,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965358896] [2022-02-24 04:16:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:26,519 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:26,546 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:26,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965358896] [2022-02-24 04:16:26,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [965358896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:26,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:26,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:16:26,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694253294] [2022-02-24 04:16:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:26,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:16:26,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:16:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:16:26,548 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) [2022-02-24 04:16:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:26,816 INFO L93 Difference]: Finished difference Result 2066 states and 3050 transitions. [2022-02-24 04:16:26,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:16:26,816 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 [2022-02-24 04:16:26,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:26,821 INFO L225 Difference]: With dead ends: 2066 [2022-02-24 04:16:26,821 INFO L226 Difference]: Without dead ends: 1379 [2022-02-24 04:16:26,822 INFO L932 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 [2022-02-24 04:16:26,823 INFO L933 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 [2022-02-24 04:16:26,823 INFO L934 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] [2022-02-24 04:16:26,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-02-24 04:16:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1377. [2022-02-24 04:16:26,890 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) [2022-02-24 04:16:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2030 transitions. [2022-02-24 04:16:26,893 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2030 transitions. Word has length 51 [2022-02-24 04:16:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:26,894 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 2030 transitions. [2022-02-24 04:16:26,894 INFO L471 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) [2022-02-24 04:16:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2030 transitions. [2022-02-24 04:16:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-24 04:16:26,895 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:26,895 INFO L514 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] [2022-02-24 04:16:26,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 04:16:26,895 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:26,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:26,896 INFO L85 PathProgramCache]: Analyzing trace with hash 821412563, now seen corresponding path program 1 times [2022-02-24 04:16:26,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:26,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484599087] [2022-02-24 04:16:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:26,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:26,898 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:16:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:26,937 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:26,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484599087] [2022-02-24 04:16:26,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [484599087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:26,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:26,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 04:16:26,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460319432] [2022-02-24 04:16:26,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:26,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 04:16:26,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:26,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 04:16:26,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 04:16:26,938 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) [2022-02-24 04:16:27,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:27,319 INFO L93 Difference]: Finished difference Result 2953 states and 4379 transitions. [2022-02-24 04:16:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 04:16:27,319 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 [2022-02-24 04:16:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:27,324 INFO L225 Difference]: With dead ends: 2953 [2022-02-24 04:16:27,324 INFO L226 Difference]: Without dead ends: 1567 [2022-02-24 04:16:27,328 INFO L932 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 [2022-02-24 04:16:27,329 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 614 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:27,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 194 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:16:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-02-24 04:16:27,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1453. [2022-02-24 04:16:27,427 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) [2022-02-24 04:16:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2138 transitions. [2022-02-24 04:16:27,431 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2138 transitions. Word has length 52 [2022-02-24 04:16:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:27,431 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 2138 transitions. [2022-02-24 04:16:27,432 INFO L471 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) [2022-02-24 04:16:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2138 transitions. [2022-02-24 04:16:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-24 04:16:27,434 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:27,434 INFO L514 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] [2022-02-24 04:16:27,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 04:16:27,434 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:27,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1685857253, now seen corresponding path program 1 times [2022-02-24 04:16:27,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:27,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677104549] [2022-02-24 04:16:27,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:27,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:16:27,708 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Basisvector must contain only constants! [2022-02-24 04:16:27,709 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 04:16:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:16:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:16:27,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:16:27,760 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:16:27,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677104549] [2022-02-24 04:16:27,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1677104549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:16:27,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:16:27,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 04:16:27,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089590251] [2022-02-24 04:16:27,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:16:27,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 04:16:27,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:16:27,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 04:16:27,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 04:16:27,761 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) [2022-02-24 04:16:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:16:28,103 INFO L93 Difference]: Finished difference Result 2328 states and 3430 transitions. [2022-02-24 04:16:28,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 04:16:28,103 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 [2022-02-24 04:16:28,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:16:28,106 INFO L225 Difference]: With dead ends: 2328 [2022-02-24 04:16:28,106 INFO L226 Difference]: Without dead ends: 838 [2022-02-24 04:16:28,108 INFO L932 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 [2022-02-24 04:16:28,109 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 691 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:16:28,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 189 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:16:28,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-02-24 04:16:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 812. [2022-02-24 04:16:28,185 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) [2022-02-24 04:16:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1175 transitions. [2022-02-24 04:16:28,187 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1175 transitions. Word has length 81 [2022-02-24 04:16:28,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:16:28,187 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1175 transitions. [2022-02-24 04:16:28,187 INFO L471 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) [2022-02-24 04:16:28,188 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1175 transitions. [2022-02-24 04:16:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-24 04:16:28,191 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:16:28,191 INFO L514 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] [2022-02-24 04:16:28,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 04:16:28,191 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:16:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:16:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 925080400, now seen corresponding path program 1 times [2022-02-24 04:16:28,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:16:28,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851622922] [2022-02-24 04:16:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:16:28,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:19:00,969 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Basisvector must contain only constants! [2022-02-24 04:19:00,969 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 04:19:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:19:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:19:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:19:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:19:01,001 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:19:01,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851622922] [2022-02-24 04:19:01,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1851622922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:19:01,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:19:01,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:19:01,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130823503] [2022-02-24 04:19:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:19:01,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:19:01,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:19:01,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:19:01,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:19:01,003 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) [2022-02-24 04:19:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:19:01,219 INFO L93 Difference]: Finished difference Result 1675 states and 2419 transitions. [2022-02-24 04:19:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:19:01,219 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 [2022-02-24 04:19:01,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:19:01,222 INFO L225 Difference]: With dead ends: 1675 [2022-02-24 04:19:01,222 INFO L226 Difference]: Without dead ends: 904 [2022-02-24 04:19:01,223 INFO L932 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 [2022-02-24 04:19:01,223 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 245 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 04:19:01,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 229 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 04:19:01,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2022-02-24 04:19:01,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 896. [2022-02-24 04:19:01,280 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) [2022-02-24 04:19:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1271 transitions. [2022-02-24 04:19:01,282 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1271 transitions. Word has length 89 [2022-02-24 04:19:01,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:19:01,282 INFO L470 AbstractCegarLoop]: Abstraction has 896 states and 1271 transitions. [2022-02-24 04:19:01,282 INFO L471 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) [2022-02-24 04:19:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1271 transitions. [2022-02-24 04:19:01,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-24 04:19:01,286 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:19:01,286 INFO L514 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] [2022-02-24 04:19:01,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 04:19:01,286 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:19:01,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:19:01,286 INFO L85 PathProgramCache]: Analyzing trace with hash -257491177, now seen corresponding path program 1 times [2022-02-24 04:19:01,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:19:01,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153571982] [2022-02-24 04:19:01,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:19:01,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms