/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 01:58:30,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 01:58:30,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 01:58:30,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 01:58:30,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 01:58:30,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 01:58:30,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 01:58:30,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 01:58:30,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 01:58:30,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 01:58:30,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 01:58:30,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 01:58:30,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 01:58:30,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 01:58:30,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 01:58:30,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 01:58:30,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 01:58:30,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 01:58:30,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 01:58:30,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 01:58:30,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-24 01:58:30,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 01:58:30,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 01:58:30,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 01:58:30,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 01:58:30,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 01:58:30,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 01:58:30,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 01:58:30,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 01:58:30,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 01:58:30,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:58:30,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 01:58:30,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 01:58:30,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 01:58:30,354 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-24 01:58:30,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 01:58:30,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 01:58:30,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 01:58:30,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 01:58:30,520 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 01:58:30,521 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 01:58:30,522 INFO L432 ainManager$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 01:58:30,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779ce4299/82eaf09156ba4a579cd8e5944adcea53/FLAG147ecc9ed [2022-02-24 01:58:30,898 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 01:58:30,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_11.cil.c [2022-02-24 01:58:30,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779ce4299/82eaf09156ba4a579cd8e5944adcea53/FLAG147ecc9ed [2022-02-24 01:58:31,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779ce4299/82eaf09156ba4a579cd8e5944adcea53 [2022-02-24 01:58:31,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 01:58:31,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 01:58:31,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 01:58:31,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 01:58:31,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 01:58:31,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f967231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31, skipping insertion in model container [2022-02-24 01:58:31,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 01:58:31,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 01:58:31,563 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 01:58:31,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:58:31,579 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 01:58:31,619 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 01:58:31,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:58:31,641 INFO L208 MainTranslator]: Completed translation [2022-02-24 01:58:31,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31 WrapperNode [2022-02-24 01:58:31,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 01:58:31,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 01:58:31,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 01:58:31,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 01:58:31,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 01:58:31,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 01:58:31,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 01:58:31,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 01:58:31,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (1/1) ... [2022-02-24 01:58:31,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:58:31,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:58:31,743 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 01:58:31,751 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 01:58:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 01:58:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 01:58:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 01:58:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 01:58:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 01:58:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 01:58:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 01:58:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 01:58:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 01:58:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 01:58:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 01:58:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 01:58:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 01:58:31,876 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 01:58:31,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 01:58:31,929 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 01:58:32,213 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-24 01:58:32,214 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-24 01:58:32,218 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 01:58:32,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 01:58:32,223 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 01:58:32,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:58:32 BoogieIcfgContainer [2022-02-24 01:58:32,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 01:58:32,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 01:58:32,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 01:58:32,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 01:58:32,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 01:58:31" (1/3) ... [2022-02-24 01:58:32,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e017ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:58:32, skipping insertion in model container [2022-02-24 01:58:32,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:58:31" (2/3) ... [2022-02-24 01:58:32,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e017ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:58:32, skipping insertion in model container [2022-02-24 01:58:32,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:58:32" (3/3) ... [2022-02-24 01:58:32,237 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_11.cil.c [2022-02-24 01:58:32,241 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 01:58:32,241 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 01:58:32,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 01:58:32,286 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=JORDAN [2022-02-24 01:58:32,286 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 01:58:32,304 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 01:58:32,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-02-24 01:58:32,318 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:32,319 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 01:58:32,319 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:32,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1730008188, now seen corresponding path program 1 times [2022-02-24 01:58:32,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:32,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018128870] [2022-02-24 01:58:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:32,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:32,376 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:58:32,538 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:32,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018128870] [2022-02-24 01:58:32,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2018128870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:32,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:32,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:32,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021339236] [2022-02-24 01:58:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:32,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:32,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:32,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:32,572 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 01:58:32,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:32,996 INFO L93 Difference]: Finished difference Result 365 states and 628 transitions. [2022-02-24 01:58:32,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:32,998 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 01:58:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:33,013 INFO L225 Difference]: With dead ends: 365 [2022-02-24 01:58:33,013 INFO L226 Difference]: Without dead ends: 186 [2022-02-24 01:58:33,017 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 01:58:33,019 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 355 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 01:58:33,020 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 01:58:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-02-24 01:58:33,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2022-02-24 01:58:33,074 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 01:58:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 271 transitions. [2022-02-24 01:58:33,080 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 271 transitions. Word has length 32 [2022-02-24 01:58:33,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:33,081 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 271 transitions. [2022-02-24 01:58:33,081 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 01:58:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 271 transitions. [2022-02-24 01:58:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-24 01:58:33,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:33,083 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 01:58:33,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 01:58:33,084 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:33,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:33,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1886345113, now seen corresponding path program 1 times [2022-02-24 01:58:33,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:33,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655976409] [2022-02-24 01:58:33,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:33,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:33,088 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:33,163 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 01:58:33,164 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:33,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655976409] [2022-02-24 01:58:33,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [655976409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:33,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:33,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:58:33,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040437927] [2022-02-24 01:58:33,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:33,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:58:33,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:33,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:58:33,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:58:33,166 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 01:58:33,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:33,469 INFO L93 Difference]: Finished difference Result 385 states and 567 transitions. [2022-02-24 01:58:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:58:33,470 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 01:58:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:33,473 INFO L225 Difference]: With dead ends: 385 [2022-02-24 01:58:33,473 INFO L226 Difference]: Without dead ends: 214 [2022-02-24 01:58:33,479 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 01:58:33,480 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, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:58:33,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 185 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 01:58:33,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-24 01:58:33,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 193. [2022-02-24 01:58:33,501 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 01:58:33,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 284 transitions. [2022-02-24 01:58:33,502 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 284 transitions. Word has length 33 [2022-02-24 01:58:33,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:33,503 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 284 transitions. [2022-02-24 01:58:33,503 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 01:58:33,503 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 284 transitions. [2022-02-24 01:58:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-24 01:58:33,510 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:33,511 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 01:58:33,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 01:58:33,514 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:33,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:33,514 INFO L85 PathProgramCache]: Analyzing trace with hash -818420097, now seen corresponding path program 1 times [2022-02-24 01:58:33,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:33,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602906439] [2022-02-24 01:58:33,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:33,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:33,516 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:33,564 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 01:58:33,564 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:33,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602906439] [2022-02-24 01:58:33,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1602906439] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:33,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:33,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:58:33,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211035641] [2022-02-24 01:58:33,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:33,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:58:33,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:33,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:58:33,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:58:33,566 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 01:58:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:33,835 INFO L93 Difference]: Finished difference Result 411 states and 605 transitions. [2022-02-24 01:58:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:58:33,835 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 01:58:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:33,836 INFO L225 Difference]: With dead ends: 411 [2022-02-24 01:58:33,836 INFO L226 Difference]: Without dead ends: 232 [2022-02-24 01:58:33,837 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 01:58:33,838 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 01:58:33,838 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 01:58:33,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-02-24 01:58:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2022-02-24 01:58:33,858 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 01:58:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 295 transitions. [2022-02-24 01:58:33,858 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 295 transitions. Word has length 35 [2022-02-24 01:58:33,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:33,859 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 295 transitions. [2022-02-24 01:58:33,859 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 01:58:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 295 transitions. [2022-02-24 01:58:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-24 01:58:33,861 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:33,861 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 01:58:33,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 01:58:33,862 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:33,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:33,862 INFO L85 PathProgramCache]: Analyzing trace with hash -148338235, now seen corresponding path program 1 times [2022-02-24 01:58:33,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:33,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256419620] [2022-02-24 01:58:33,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:33,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:33,864 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:33,937 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 01:58:33,938 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:33,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256419620] [2022-02-24 01:58:33,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1256419620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:33,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:33,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:33,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656028294] [2022-02-24 01:58:33,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:33,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:33,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:33,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:33,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:33,939 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 01:58:34,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:34,175 INFO L93 Difference]: Finished difference Result 441 states and 666 transitions. [2022-02-24 01:58:34,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:34,175 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 01:58:34,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:34,176 INFO L225 Difference]: With dead ends: 441 [2022-02-24 01:58:34,176 INFO L226 Difference]: Without dead ends: 241 [2022-02-24 01:58:34,177 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 01:58:34,184 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 310 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:58:34,185 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 01:58:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-02-24 01:58:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 225. [2022-02-24 01:58:34,216 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 01:58:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 333 transitions. [2022-02-24 01:58:34,217 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 333 transitions. Word has length 36 [2022-02-24 01:58:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:34,217 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 333 transitions. [2022-02-24 01:58:34,217 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 01:58:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 333 transitions. [2022-02-24 01:58:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-24 01:58:34,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:34,218 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 01:58:34,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 01:58:34,218 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:34,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:34,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1107449201, now seen corresponding path program 1 times [2022-02-24 01:58:34,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:34,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30551805] [2022-02-24 01:58:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:34,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:34,221 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:34,282 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 01:58:34,282 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:34,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30551805] [2022-02-24 01:58:34,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [30551805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:34,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:34,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:34,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779542483] [2022-02-24 01:58:34,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:34,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:34,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:34,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:34,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:34,283 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 01:58:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:34,472 INFO L93 Difference]: Finished difference Result 646 states and 962 transitions. [2022-02-24 01:58:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:34,473 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 01:58:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:34,475 INFO L225 Difference]: With dead ends: 646 [2022-02-24 01:58:34,475 INFO L226 Difference]: Without dead ends: 435 [2022-02-24 01:58:34,475 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 01:58:34,476 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 01:58:34,476 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 01:58:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-02-24 01:58:34,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2022-02-24 01:58:34,499 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 01:58:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 641 transitions. [2022-02-24 01:58:34,501 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 641 transitions. Word has length 41 [2022-02-24 01:58:34,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:34,501 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 641 transitions. [2022-02-24 01:58:34,501 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 01:58:34,501 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 641 transitions. [2022-02-24 01:58:34,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-24 01:58:34,502 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:34,502 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 01:58:34,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 01:58:34,502 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:34,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:34,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1540817245, now seen corresponding path program 1 times [2022-02-24 01:58:34,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:34,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761897222] [2022-02-24 01:58:34,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:34,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:34,504 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:34,532 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 01:58:34,532 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:34,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761897222] [2022-02-24 01:58:34,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1761897222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:34,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:34,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:34,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547409223] [2022-02-24 01:58:34,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:34,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:34,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:34,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:34,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:34,533 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 01:58:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:34,779 INFO L93 Difference]: Finished difference Result 972 states and 1480 transitions. [2022-02-24 01:58:34,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:34,780 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 01:58:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:34,782 INFO L225 Difference]: With dead ends: 972 [2022-02-24 01:58:34,782 INFO L226 Difference]: Without dead ends: 529 [2022-02-24 01:58:34,783 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 01:58:34,783 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 348 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:58:34,784 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 01:58:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-02-24 01:58:34,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 489. [2022-02-24 01:58:34,834 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 01:58:34,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 735 transitions. [2022-02-24 01:58:34,836 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 735 transitions. Word has length 41 [2022-02-24 01:58:34,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:34,836 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 735 transitions. [2022-02-24 01:58:34,836 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 01:58:34,837 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 735 transitions. [2022-02-24 01:58:34,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-24 01:58:34,837 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:34,837 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 01:58:34,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 01:58:34,838 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:34,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash 162840181, now seen corresponding path program 1 times [2022-02-24 01:58:34,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:34,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132648407] [2022-02-24 01:58:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:34,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:34,840 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:34,868 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 01:58:34,868 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:34,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132648407] [2022-02-24 01:58:34,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2132648407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:34,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:34,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:34,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977190550] [2022-02-24 01:58:34,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:34,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:34,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:34,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:34,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:34,870 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 01:58:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:35,129 INFO L93 Difference]: Finished difference Result 1058 states and 1625 transitions. [2022-02-24 01:58:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:35,129 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 01:58:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:35,131 INFO L225 Difference]: With dead ends: 1058 [2022-02-24 01:58:35,131 INFO L226 Difference]: Without dead ends: 583 [2022-02-24 01:58:35,132 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 01:58:35,133 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:58:35,133 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 01:58:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-02-24 01:58:35,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 571. [2022-02-24 01:58:35,161 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 01:58:35,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 835 transitions. [2022-02-24 01:58:35,163 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 835 transitions. Word has length 42 [2022-02-24 01:58:35,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:35,163 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 835 transitions. [2022-02-24 01:58:35,164 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 01:58:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 835 transitions. [2022-02-24 01:58:35,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-24 01:58:35,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:35,164 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 01:58:35,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 01:58:35,165 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1441142835, now seen corresponding path program 1 times [2022-02-24 01:58:35,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:35,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642488234] [2022-02-24 01:58:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:35,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:35,166 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:35,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:35,199 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 01:58:35,200 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:35,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642488234] [2022-02-24 01:58:35,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1642488234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:35,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:35,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:35,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966759180] [2022-02-24 01:58:35,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:35,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:35,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:35,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:35,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:35,201 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 01:58:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:35,427 INFO L93 Difference]: Finished difference Result 1224 states and 1828 transitions. [2022-02-24 01:58:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:35,427 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 01:58:35,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:35,429 INFO L225 Difference]: With dead ends: 1224 [2022-02-24 01:58:35,430 INFO L226 Difference]: Without dead ends: 643 [2022-02-24 01:58:35,431 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 01:58:35,431 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:58:35,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 235 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:58:35,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-02-24 01:58:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 633. [2022-02-24 01:58:35,470 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 01:58:35,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 943 transitions. [2022-02-24 01:58:35,472 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 943 transitions. Word has length 43 [2022-02-24 01:58:35,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:35,472 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 943 transitions. [2022-02-24 01:58:35,472 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 01:58:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 943 transitions. [2022-02-24 01:58:35,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-24 01:58:35,473 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:35,473 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 01:58:35,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 01:58:35,474 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:35,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash -111424063, now seen corresponding path program 1 times [2022-02-24 01:58:35,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:35,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839885110] [2022-02-24 01:58:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:35,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:35,476 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:35,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:35,523 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 01:58:35,523 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:35,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839885110] [2022-02-24 01:58:35,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [839885110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:35,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:35,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:58:35,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306495516] [2022-02-24 01:58:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:35,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:58:35,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:35,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:58:35,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:58:35,524 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 01:58:35,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:35,845 INFO L93 Difference]: Finished difference Result 1392 states and 2069 transitions. [2022-02-24 01:58:35,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 01:58:35,845 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 01:58:35,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:35,849 INFO L225 Difference]: With dead ends: 1392 [2022-02-24 01:58:35,849 INFO L226 Difference]: Without dead ends: 773 [2022-02-24 01:58:35,850 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 01:58:35,851 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 01:58:35,851 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 01:58:35,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-02-24 01:58:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 627. [2022-02-24 01:58:35,891 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 01:58:35,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 943 transitions. [2022-02-24 01:58:35,894 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 943 transitions. Word has length 48 [2022-02-24 01:58:35,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:35,894 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 943 transitions. [2022-02-24 01:58:35,894 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 01:58:35,894 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 943 transitions. [2022-02-24 01:58:35,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-24 01:58:35,895 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:35,896 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 01:58:35,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 01:58:35,896 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:35,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:35,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1022300905, now seen corresponding path program 1 times [2022-02-24 01:58:35,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:35,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123368549] [2022-02-24 01:58:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:35,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:35,898 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:35,936 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 01:58:35,936 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:35,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123368549] [2022-02-24 01:58:35,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2123368549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:35,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:35,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:35,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139746304] [2022-02-24 01:58:35,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:35,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:35,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:35,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:35,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:35,938 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 01:58:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:36,198 INFO L93 Difference]: Finished difference Result 1334 states and 2041 transitions. [2022-02-24 01:58:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:36,199 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 01:58:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:36,202 INFO L225 Difference]: With dead ends: 1334 [2022-02-24 01:58:36,202 INFO L226 Difference]: Without dead ends: 721 [2022-02-24 01:58:36,203 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 01:58:36,204 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 297 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:58:36,204 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 01:58:36,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-02-24 01:58:36,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 701. [2022-02-24 01:58:36,244 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 01:58:36,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1035 transitions. [2022-02-24 01:58:36,246 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1035 transitions. Word has length 51 [2022-02-24 01:58:36,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:36,246 INFO L470 AbstractCegarLoop]: Abstraction has 701 states and 1035 transitions. [2022-02-24 01:58:36,246 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 01:58:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1035 transitions. [2022-02-24 01:58:36,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-24 01:58:36,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:36,247 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 01:58:36,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 01:58:36,248 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:36,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:36,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1802448233, now seen corresponding path program 1 times [2022-02-24 01:58:36,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:36,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893889900] [2022-02-24 01:58:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:36,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:36,249 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:36,274 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 01:58:36,275 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:36,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893889900] [2022-02-24 01:58:36,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [893889900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:36,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:36,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:58:36,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579453957] [2022-02-24 01:58:36,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:36,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:58:36,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:36,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:58:36,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:58:36,276 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 01:58:36,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:36,495 INFO L93 Difference]: Finished difference Result 2066 states and 3050 transitions. [2022-02-24 01:58:36,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:58:36,496 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 01:58:36,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:36,512 INFO L225 Difference]: With dead ends: 2066 [2022-02-24 01:58:36,512 INFO L226 Difference]: Without dead ends: 1379 [2022-02-24 01:58:36,513 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 01:58:36,514 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:58:36,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 225 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:58:36,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-02-24 01:58:36,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1377. [2022-02-24 01:58:36,579 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 01:58:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2030 transitions. [2022-02-24 01:58:36,583 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2030 transitions. Word has length 51 [2022-02-24 01:58:36,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:36,583 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 2030 transitions. [2022-02-24 01:58:36,583 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 01:58:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2030 transitions. [2022-02-24 01:58:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-24 01:58:36,585 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:36,585 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 01:58:36,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 01:58:36,585 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:36,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:36,586 INFO L85 PathProgramCache]: Analyzing trace with hash 821412563, now seen corresponding path program 1 times [2022-02-24 01:58:36,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:36,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117602096] [2022-02-24 01:58:36,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:36,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:36,587 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:58:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:58:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:58:36,620 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 01:58:36,620 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:58:36,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117602096] [2022-02-24 01:58:36,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2117602096] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:58:36,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:58:36,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 01:58:36,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060135579] [2022-02-24 01:58:36,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:58:36,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 01:58:36,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:58:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 01:58:36,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:58:36,621 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 01:58:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:58:37,012 INFO L93 Difference]: Finished difference Result 2953 states and 4379 transitions. [2022-02-24 01:58:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 01:58:37,012 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 01:58:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:58:37,017 INFO L225 Difference]: With dead ends: 2953 [2022-02-24 01:58:37,018 INFO L226 Difference]: Without dead ends: 1567 [2022-02-24 01:58:37,020 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 01:58:37,021 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 01:58:37,021 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 01:58:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-02-24 01:58:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1453. [2022-02-24 01:58:37,119 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 01:58:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2138 transitions. [2022-02-24 01:58:37,123 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2138 transitions. Word has length 52 [2022-02-24 01:58:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:58:37,123 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 2138 transitions. [2022-02-24 01:58:37,123 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 01:58:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2138 transitions. [2022-02-24 01:58:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-24 01:58:37,125 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:58:37,125 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 01:58:37,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 01:58:37,125 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:58:37,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:58:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1685857253, now seen corresponding path program 1 times [2022-02-24 01:58:37,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:58:37,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318293191] [2022-02-24 01:58:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:58:37,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:58:37,218 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-24 01:58:37,219 INFO L275 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-24 01:58:37,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 01:58:37,230 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:170) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:126) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:297) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:471) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertCodeBlocks.java:109) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:313) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 34 more [2022-02-24 01:58:37,236 INFO L158 Benchmark]: Toolchain (without parser) took 5919.50ms. Allocated memory was 165.7MB in the beginning and 342.9MB in the end (delta: 177.2MB). Free memory was 109.3MB in the beginning and 139.3MB in the end (delta: -29.9MB). Peak memory consumption was 146.6MB. Max. memory is 8.0GB. [2022-02-24 01:58:37,237 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 165.7MB. Free memory was 126.1MB in the beginning and 126.0MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 01:58:37,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.52ms. Allocated memory was 165.7MB in the beginning and 237.0MB in the end (delta: 71.3MB). Free memory was 109.1MB in the beginning and 205.5MB in the end (delta: -96.4MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-02-24 01:58:37,237 INFO L158 Benchmark]: Boogie Preprocessor took 55.88ms. Allocated memory is still 237.0MB. Free memory was 205.5MB in the beginning and 202.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-24 01:58:37,237 INFO L158 Benchmark]: RCFGBuilder took 525.86ms. Allocated memory is still 237.0MB. Free memory was 202.9MB in the beginning and 174.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-02-24 01:58:37,237 INFO L158 Benchmark]: TraceAbstraction took 5009.61ms. Allocated memory was 237.0MB in the beginning and 342.9MB in the end (delta: 105.9MB). Free memory was 174.1MB in the beginning and 139.3MB in the end (delta: 34.8MB). Peak memory consumption was 141.8MB. Max. memory is 8.0GB. [2022-02-24 01:58:37,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 165.7MB. Free memory was 126.1MB in the beginning and 126.0MB in the end (delta: 66.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 324.52ms. Allocated memory was 165.7MB in the beginning and 237.0MB in the end (delta: 71.3MB). Free memory was 109.1MB in the beginning and 205.5MB in the end (delta: -96.4MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.88ms. Allocated memory is still 237.0MB. Free memory was 205.5MB in the beginning and 202.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 525.86ms. Allocated memory is still 237.0MB. Free memory was 202.9MB in the beginning and 174.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 5009.61ms. Allocated memory was 237.0MB in the beginning and 342.9MB in the end (delta: 105.9MB). Free memory was 174.1MB in the beginning and 139.3MB in the end (delta: 34.8MB). Peak memory consumption was 141.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-24 01:58:37,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...