/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 19:54:46,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 19:54:46,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 19:54:46,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 19:54:46,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 19:54:46,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 19:54:46,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 19:54:46,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 19:54:46,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 19:54:46,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 19:54:46,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 19:54:46,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 19:54:46,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 19:54:46,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 19:54:46,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 19:54:46,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 19:54:46,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 19:54:46,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 19:54:46,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 19:54:46,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 19:54:46,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 19:54:46,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 19:54:46,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 19:54:46,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 19:54:46,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-23 19:54:46,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 19:54:46,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 19:54:46,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 19:54:46,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 19:54:46,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 19:54:46,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 19:54:46,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 19:54:46,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 19:54:46,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 19:54:46,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 19:54:46,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 19:54:46,473 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 19:54:46,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 19:54:46,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 19:54:46,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 19:54:46,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 19:54:46,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 19:54:46,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 19:54:46,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 19:54:46,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 19:54:46,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 19:54:46,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 19:54:46,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:54:46,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 19:54:46,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 19:54:46,482 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 19:54:46,482 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 19:54:46,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 19:54:46,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 19:54:46,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 19:54:46,654 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 19:54:46,655 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 19:54:46,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_2.cil-1.c [2022-02-23 19:54:46,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66374c147/bb3f441ba4e14232ab9c95066be66ba4/FLAG6d36739d7 [2022-02-23 19:54:47,045 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 19:54:47,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_2.cil-1.c [2022-02-23 19:54:47,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66374c147/bb3f441ba4e14232ab9c95066be66ba4/FLAG6d36739d7 [2022-02-23 19:54:47,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66374c147/bb3f441ba4e14232ab9c95066be66ba4 [2022-02-23 19:54:47,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 19:54:47,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 19:54:47,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 19:54:47,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 19:54:47,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 19:54:47,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4e2d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47, skipping insertion in model container [2022-02-23 19:54:47,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 19:54:47,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 19:54:47,647 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_2.cil-1.c[42877,42890] [2022-02-23 19:54:47,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:54:47,656 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 19:54:47,687 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_2.cil-1.c[42877,42890] [2022-02-23 19:54:47,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:54:47,699 INFO L208 MainTranslator]: Completed translation [2022-02-23 19:54:47,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47 WrapperNode [2022-02-23 19:54:47,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 19:54:47,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 19:54:47,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 19:54:47,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 19:54:47,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 19:54:47,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 19:54:47,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 19:54:47,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 19:54:47,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (1/1) ... [2022-02-23 19:54:47,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:54:47,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:47,788 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) [2022-02-23 19:54:47,803 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 [2022-02-23 19:54:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 19:54:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 19:54:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 19:54:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 19:54:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 19:54:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 19:54:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 19:54:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 19:54:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 19:54:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 19:54:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 19:54:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 19:54:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 19:54:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 19:54:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 19:54:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 19:54:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 19:54:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 19:54:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 19:54:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 19:54:47,891 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 19:54:47,892 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 19:54:47,956 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 19:54:48,217 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-23 19:54:48,217 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-23 19:54:48,222 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 19:54:48,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 19:54:48,228 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 19:54:48,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:54:48 BoogieIcfgContainer [2022-02-23 19:54:48,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 19:54:48,230 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 19:54:48,230 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 19:54:48,231 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 19:54:48,233 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:54:48" (1/1) ... [2022-02-23 19:54:48,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:54:48 BasicIcfg [2022-02-23 19:54:48,255 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 19:54:48,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 19:54:48,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 19:54:48,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 19:54:48,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:54:47" (1/4) ... [2022-02-23 19:54:48,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5310b2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:54:48, skipping insertion in model container [2022-02-23 19:54:48,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:47" (2/4) ... [2022-02-23 19:54:48,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5310b2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:54:48, skipping insertion in model container [2022-02-23 19:54:48,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:54:48" (3/4) ... [2022-02-23 19:54:48,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5310b2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:54:48, skipping insertion in model container [2022-02-23 19:54:48,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:54:48" (4/4) ... [2022-02-23 19:54:48,261 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-1.cJordan [2022-02-23 19:54:48,265 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 19:54:48,265 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 19:54:48,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 19:54:48,306 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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=FAST_UPR [2022-02-23 19:54:48,307 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 19:54:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 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) [2022-02-23 19:54:48,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 19:54:48,336 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:48,337 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] [2022-02-23 19:54:48,337 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:48,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:48,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1568419337, now seen corresponding path program 1 times [2022-02-23 19:54:48,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:48,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035021594] [2022-02-23 19:54:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:48,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:54:48,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:48,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035021594] [2022-02-23 19:54:48,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035021594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:48,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:48,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:48,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967978046] [2022-02-23 19:54:48,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:48,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:48,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:48,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:48,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:48,603 INFO L87 Difference]: Start difference. First operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 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 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-02-23 19:54:48,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:48,936 INFO L93 Difference]: Finished difference Result 278 states and 461 transitions. [2022-02-23 19:54:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:48,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 50 [2022-02-23 19:54:48,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:48,954 INFO L225 Difference]: With dead ends: 278 [2022-02-23 19:54:48,954 INFO L226 Difference]: Without dead ends: 251 [2022-02-23 19:54:48,955 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 [2022-02-23 19:54:48,958 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 634 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:48,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 249 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-23 19:54:48,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-02-23 19:54:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-02-23 19:54:49,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 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) [2022-02-23 19:54:49,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 379 transitions. [2022-02-23 19:54:49,010 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 379 transitions. Word has length 50 [2022-02-23 19:54:49,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:49,011 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 379 transitions. [2022-02-23 19:54:49,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-02-23 19:54:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2022-02-23 19:54:49,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 19:54:49,017 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:49,017 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:49,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 19:54:49,018 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:49,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:49,018 INFO L85 PathProgramCache]: Analyzing trace with hash -869102825, now seen corresponding path program 1 times [2022-02-23 19:54:49,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:49,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76510680] [2022-02-23 19:54:49,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:49,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:54:49,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:49,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76510680] [2022-02-23 19:54:49,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76510680] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:49,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:49,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:49,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239016259] [2022-02-23 19:54:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:49,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:49,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:49,113 INFO L87 Difference]: Start difference. First operand 251 states and 379 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-02-23 19:54:49,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:49,308 INFO L93 Difference]: Finished difference Result 282 states and 419 transitions. [2022-02-23 19:54:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:49,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 66 [2022-02-23 19:54:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:49,310 INFO L225 Difference]: With dead ends: 282 [2022-02-23 19:54:49,311 INFO L226 Difference]: Without dead ends: 282 [2022-02-23 19:54:49,314 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 [2022-02-23 19:54:49,316 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 219 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:49,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 220 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-02-23 19:54:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 272. [2022-02-23 19:54:49,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 267 states have (on average 1.5018726591760299) internal successors, (401), 267 states have internal predecessors, (401), 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) [2022-02-23 19:54:49,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 405 transitions. [2022-02-23 19:54:49,334 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 405 transitions. Word has length 66 [2022-02-23 19:54:49,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:49,335 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 405 transitions. [2022-02-23 19:54:49,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-02-23 19:54:49,335 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 405 transitions. [2022-02-23 19:54:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-23 19:54:49,337 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:49,337 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:49,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 19:54:49,337 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:49,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1440847697, now seen corresponding path program 1 times [2022-02-23 19:54:49,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:49,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041145093] [2022-02-23 19:54:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:49,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:54:49,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:49,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041145093] [2022-02-23 19:54:49,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041145093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:49,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:49,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:49,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135025714] [2022-02-23 19:54:49,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:49,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:49,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:49,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:49,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:49,427 INFO L87 Difference]: Start difference. First operand 272 states and 405 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-02-23 19:54:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:49,643 INFO L93 Difference]: Finished difference Result 364 states and 508 transitions. [2022-02-23 19:54:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:49,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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 87 [2022-02-23 19:54:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:49,647 INFO L225 Difference]: With dead ends: 364 [2022-02-23 19:54:49,647 INFO L226 Difference]: Without dead ends: 364 [2022-02-23 19:54:49,649 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 [2022-02-23 19:54:49,652 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 216 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:49,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 221 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:49,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-02-23 19:54:49,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 356. [2022-02-23 19:54:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.4102564102564104) internal successors, (495), 351 states have internal predecessors, (495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 499 transitions. [2022-02-23 19:54:49,663 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 499 transitions. Word has length 87 [2022-02-23 19:54:49,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:49,664 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 499 transitions. [2022-02-23 19:54:49,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-02-23 19:54:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 499 transitions. [2022-02-23 19:54:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-23 19:54:49,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:49,670 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:49,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 19:54:49,671 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:49,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:49,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1316774450, now seen corresponding path program 1 times [2022-02-23 19:54:49,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:49,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616658194] [2022-02-23 19:54:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:49,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:54:49,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:49,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616658194] [2022-02-23 19:54:49,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616658194] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:49,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:49,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:49,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898625675] [2022-02-23 19:54:49,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:49,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:49,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:49,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:49,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:49,773 INFO L87 Difference]: Start difference. First operand 356 states and 499 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-02-23 19:54:49,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:49,963 INFO L93 Difference]: Finished difference Result 410 states and 565 transitions. [2022-02-23 19:54:49,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:49,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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 87 [2022-02-23 19:54:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:49,966 INFO L225 Difference]: With dead ends: 410 [2022-02-23 19:54:49,966 INFO L226 Difference]: Without dead ends: 410 [2022-02-23 19:54:49,966 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 [2022-02-23 19:54:49,971 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 214 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:49,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 221 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:49,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-23 19:54:49,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 402. [2022-02-23 19:54:49,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 397 states have (on average 1.3879093198992443) internal successors, (551), 397 states have internal predecessors, (551), 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) [2022-02-23 19:54:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 555 transitions. [2022-02-23 19:54:49,982 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 555 transitions. Word has length 87 [2022-02-23 19:54:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:49,983 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 555 transitions. [2022-02-23 19:54:49,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-02-23 19:54:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 555 transitions. [2022-02-23 19:54:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-23 19:54:49,985 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:49,985 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:49,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 19:54:49,986 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:49,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:49,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1105577273, now seen corresponding path program 1 times [2022-02-23 19:54:49,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:49,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970813489] [2022-02-23 19:54:49,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:49,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 19:54:50,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:50,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970813489] [2022-02-23 19:54:50,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970813489] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:50,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:50,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:50,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308901717] [2022-02-23 19:54:50,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:50,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:50,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:50,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:50,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:50,080 INFO L87 Difference]: Start difference. First operand 402 states and 555 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:50,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:50,264 INFO L93 Difference]: Finished difference Result 478 states and 657 transitions. [2022-02-23 19:54:50,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:50,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-02-23 19:54:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:50,266 INFO L225 Difference]: With dead ends: 478 [2022-02-23 19:54:50,267 INFO L226 Difference]: Without dead ends: 478 [2022-02-23 19:54:50,267 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 [2022-02-23 19:54:50,267 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 246 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:50,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 220 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-02-23 19:54:50,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 452. [2022-02-23 19:54:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 447 states have (on average 1.366890380313199) internal successors, (611), 447 states have internal predecessors, (611), 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) [2022-02-23 19:54:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 615 transitions. [2022-02-23 19:54:50,275 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 615 transitions. Word has length 108 [2022-02-23 19:54:50,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:50,275 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 615 transitions. [2022-02-23 19:54:50,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 615 transitions. [2022-02-23 19:54:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-23 19:54:50,276 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:50,277 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:50,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 19:54:50,277 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:50,277 INFO L85 PathProgramCache]: Analyzing trace with hash -230018145, now seen corresponding path program 1 times [2022-02-23 19:54:50,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:50,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960646571] [2022-02-23 19:54:50,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:50,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 19:54:50,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:50,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960646571] [2022-02-23 19:54:50,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960646571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:50,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:50,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:50,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287987910] [2022-02-23 19:54:50,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:50,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:50,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:50,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:50,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:50,322 INFO L87 Difference]: Start difference. First operand 452 states and 615 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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) [2022-02-23 19:54:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:50,476 INFO L93 Difference]: Finished difference Result 654 states and 891 transitions. [2022-02-23 19:54:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:50,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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 127 [2022-02-23 19:54:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:50,479 INFO L225 Difference]: With dead ends: 654 [2022-02-23 19:54:50,479 INFO L226 Difference]: Without dead ends: 654 [2022-02-23 19:54:50,479 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 [2022-02-23 19:54:50,480 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 330 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:50,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 377 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-02-23 19:54:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2022-02-23 19:54:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 649 states have (on average 1.3667180277349769) internal successors, (887), 649 states have internal predecessors, (887), 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) [2022-02-23 19:54:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 891 transitions. [2022-02-23 19:54:50,488 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 891 transitions. Word has length 127 [2022-02-23 19:54:50,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:50,488 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 891 transitions. [2022-02-23 19:54:50,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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) [2022-02-23 19:54:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 891 transitions. [2022-02-23 19:54:50,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-23 19:54:50,490 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:50,490 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:50,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 19:54:50,490 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:50,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:50,491 INFO L85 PathProgramCache]: Analyzing trace with hash -678714784, now seen corresponding path program 1 times [2022-02-23 19:54:50,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:50,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094220433] [2022-02-23 19:54:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:54:50,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:50,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094220433] [2022-02-23 19:54:50,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094220433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:50,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:50,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:50,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9251400] [2022-02-23 19:54:50,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:50,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:50,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:50,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:50,526 INFO L87 Difference]: Start difference. First operand 654 states and 891 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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) [2022-02-23 19:54:50,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:50,676 INFO L93 Difference]: Finished difference Result 881 states and 1198 transitions. [2022-02-23 19:54:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 127 [2022-02-23 19:54:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:50,679 INFO L225 Difference]: With dead ends: 881 [2022-02-23 19:54:50,679 INFO L226 Difference]: Without dead ends: 881 [2022-02-23 19:54:50,679 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 [2022-02-23 19:54:50,680 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 331 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:50,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 379 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:50,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-02-23 19:54:50,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2022-02-23 19:54:50,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 876 states have (on average 1.3630136986301369) internal successors, (1194), 876 states have internal predecessors, (1194), 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) [2022-02-23 19:54:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1198 transitions. [2022-02-23 19:54:50,691 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1198 transitions. Word has length 127 [2022-02-23 19:54:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:50,692 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 1198 transitions. [2022-02-23 19:54:50,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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) [2022-02-23 19:54:50,692 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1198 transitions. [2022-02-23 19:54:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-02-23 19:54:50,693 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:50,694 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:50,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 19:54:50,694 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:50,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:50,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1098194238, now seen corresponding path program 1 times [2022-02-23 19:54:50,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:50,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715213970] [2022-02-23 19:54:50,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:50,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-23 19:54:50,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:50,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715213970] [2022-02-23 19:54:50,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715213970] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:50,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:50,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:50,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231232623] [2022-02-23 19:54:50,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:50,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:50,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:50,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:50,725 INFO L87 Difference]: Start difference. First operand 881 states and 1198 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:50,875 INFO L93 Difference]: Finished difference Result 905 states and 1227 transitions. [2022-02-23 19:54:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-02-23 19:54:50,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:50,878 INFO L225 Difference]: With dead ends: 905 [2022-02-23 19:54:50,878 INFO L226 Difference]: Without dead ends: 905 [2022-02-23 19:54:50,878 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 [2022-02-23 19:54:50,878 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 207 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:50,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 235 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-02-23 19:54:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2022-02-23 19:54:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 900 states have (on average 1.3588888888888888) internal successors, (1223), 900 states have internal predecessors, (1223), 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) [2022-02-23 19:54:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1227 transitions. [2022-02-23 19:54:50,890 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1227 transitions. Word has length 128 [2022-02-23 19:54:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:50,891 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1227 transitions. [2022-02-23 19:54:50,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1227 transitions. [2022-02-23 19:54:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-23 19:54:50,893 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:50,893 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:50,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 19:54:50,893 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:50,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:50,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1549076422, now seen corresponding path program 1 times [2022-02-23 19:54:50,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:50,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038973812] [2022-02-23 19:54:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:50,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-23 19:54:50,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:50,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038973812] [2022-02-23 19:54:50,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038973812] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:50,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:50,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:50,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848851254] [2022-02-23 19:54:50,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:50,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:50,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:50,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:50,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:50,952 INFO L87 Difference]: Start difference. First operand 905 states and 1227 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-02-23 19:54:51,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:51,134 INFO L93 Difference]: Finished difference Result 1074 states and 1435 transitions. [2022-02-23 19:54:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:51,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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 189 [2022-02-23 19:54:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:51,137 INFO L225 Difference]: With dead ends: 1074 [2022-02-23 19:54:51,137 INFO L226 Difference]: Without dead ends: 1074 [2022-02-23 19:54:51,137 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 [2022-02-23 19:54:51,138 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 255 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:51,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 218 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-02-23 19:54:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1028. [2022-02-23 19:54:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1023 states have (on average 1.3391984359726294) internal successors, (1370), 1023 states have internal predecessors, (1370), 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) [2022-02-23 19:54:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1374 transitions. [2022-02-23 19:54:51,151 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1374 transitions. Word has length 189 [2022-02-23 19:54:51,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:51,151 INFO L470 AbstractCegarLoop]: Abstraction has 1028 states and 1374 transitions. [2022-02-23 19:54:51,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-02-23 19:54:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1374 transitions. [2022-02-23 19:54:51,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-23 19:54:51,154 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:51,154 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:51,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 19:54:51,154 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:51,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:51,155 INFO L85 PathProgramCache]: Analyzing trace with hash -124280297, now seen corresponding path program 1 times [2022-02-23 19:54:51,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:51,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959399206] [2022-02-23 19:54:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:51,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-02-23 19:54:51,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:51,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959399206] [2022-02-23 19:54:51,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959399206] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:51,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:51,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:51,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392494972] [2022-02-23 19:54:51,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:51,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:51,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:51,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:51,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:51,195 INFO L87 Difference]: Start difference. First operand 1028 states and 1374 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:51,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:51,345 INFO L93 Difference]: Finished difference Result 1254 states and 1735 transitions. [2022-02-23 19:54:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-02-23 19:54:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:51,349 INFO L225 Difference]: With dead ends: 1254 [2022-02-23 19:54:51,349 INFO L226 Difference]: Without dead ends: 1250 [2022-02-23 19:54:51,349 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 [2022-02-23 19:54:51,350 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 332 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:51,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 219 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-02-23 19:54:51,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1232. [2022-02-23 19:54:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1227 states have (on average 1.3928280358598206) internal successors, (1709), 1227 states have internal predecessors, (1709), 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) [2022-02-23 19:54:51,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1713 transitions. [2022-02-23 19:54:51,366 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1713 transitions. Word has length 202 [2022-02-23 19:54:51,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:51,367 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1713 transitions. [2022-02-23 19:54:51,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:51,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1713 transitions. [2022-02-23 19:54:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-23 19:54:51,370 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:51,370 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:51,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 19:54:51,370 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:51,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:51,370 INFO L85 PathProgramCache]: Analyzing trace with hash 476689054, now seen corresponding path program 1 times [2022-02-23 19:54:51,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:51,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141194201] [2022-02-23 19:54:51,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:51,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-23 19:54:51,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:51,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141194201] [2022-02-23 19:54:51,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141194201] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:51,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:51,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:51,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518476503] [2022-02-23 19:54:51,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:51,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:51,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:51,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:51,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:51,414 INFO L87 Difference]: Start difference. First operand 1232 states and 1713 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2022-02-23 19:54:51,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:51,598 INFO L93 Difference]: Finished difference Result 1404 states and 1913 transitions. [2022-02-23 19:54:51,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:51,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 231 [2022-02-23 19:54:51,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:51,602 INFO L225 Difference]: With dead ends: 1404 [2022-02-23 19:54:51,602 INFO L226 Difference]: Without dead ends: 1360 [2022-02-23 19:54:51,603 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 [2022-02-23 19:54:51,603 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 254 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:51,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 219 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2022-02-23 19:54:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1356. [2022-02-23 19:54:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1351 states have (on average 1.377498149518875) internal successors, (1861), 1351 states have internal predecessors, (1861), 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) [2022-02-23 19:54:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1865 transitions. [2022-02-23 19:54:51,621 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1865 transitions. Word has length 231 [2022-02-23 19:54:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:51,622 INFO L470 AbstractCegarLoop]: Abstraction has 1356 states and 1865 transitions. [2022-02-23 19:54:51,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2022-02-23 19:54:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1865 transitions. [2022-02-23 19:54:51,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-02-23 19:54:51,625 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:51,625 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:51,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 19:54:51,625 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:51,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:51,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1961785307, now seen corresponding path program 1 times [2022-02-23 19:54:51,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:51,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397907355] [2022-02-23 19:54:51,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:51,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-02-23 19:54:51,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:51,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397907355] [2022-02-23 19:54:51,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397907355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:51,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:51,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:51,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725774877] [2022-02-23 19:54:51,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:51,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:51,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:51,676 INFO L87 Difference]: Start difference. First operand 1356 states and 1865 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2022-02-23 19:54:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:51,833 INFO L93 Difference]: Finished difference Result 1484 states and 2005 transitions. [2022-02-23 19:54:51,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:51,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 246 [2022-02-23 19:54:51,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:51,837 INFO L225 Difference]: With dead ends: 1484 [2022-02-23 19:54:51,837 INFO L226 Difference]: Without dead ends: 1484 [2022-02-23 19:54:51,838 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 [2022-02-23 19:54:51,838 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 335 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:51,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 207 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:51,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-02-23 19:54:51,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1412. [2022-02-23 19:54:51,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1407 states have (on average 1.371002132196162) internal successors, (1929), 1407 states have internal predecessors, (1929), 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) [2022-02-23 19:54:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1933 transitions. [2022-02-23 19:54:51,859 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1933 transitions. Word has length 246 [2022-02-23 19:54:51,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:51,859 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 1933 transitions. [2022-02-23 19:54:51,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2022-02-23 19:54:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1933 transitions. [2022-02-23 19:54:51,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-02-23 19:54:51,862 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:51,862 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 19:54:51,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 19:54:51,863 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:51,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash -837403918, now seen corresponding path program 1 times [2022-02-23 19:54:51,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:51,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626054581] [2022-02-23 19:54:51,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:51,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-23 19:54:51,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:51,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626054581] [2022-02-23 19:54:51,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626054581] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:51,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178598686] [2022-02-23 19:54:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:51,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:51,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:51,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:51,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 19:54:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:52,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:52,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-23 19:54:52,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:54:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-23 19:54:52,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178598686] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:54:52,703 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:54:52,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-23 19:54:52,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393607716] [2022-02-23 19:54:52,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:54:52,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 19:54:52,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:52,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 19:54:52,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 19:54:52,705 INFO L87 Difference]: Start difference. First operand 1412 states and 1933 transitions. Second operand has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 6 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:53,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:53,820 INFO L93 Difference]: Finished difference Result 5278 states and 7104 transitions. [2022-02-23 19:54:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-23 19:54:53,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 6 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 259 [2022-02-23 19:54:53,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:53,834 INFO L225 Difference]: With dead ends: 5278 [2022-02-23 19:54:53,835 INFO L226 Difference]: Without dead ends: 5278 [2022-02-23 19:54:53,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-02-23 19:54:53,836 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 722 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:53,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 585 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-23 19:54:53,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5278 states. [2022-02-23 19:54:53,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5278 to 4264. [2022-02-23 19:54:53,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4259 states have (on average 1.3578304766377083) internal successors, (5783), 4259 states have internal predecessors, (5783), 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) [2022-02-23 19:54:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 5787 transitions. [2022-02-23 19:54:53,906 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 5787 transitions. Word has length 259 [2022-02-23 19:54:53,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:53,907 INFO L470 AbstractCegarLoop]: Abstraction has 4264 states and 5787 transitions. [2022-02-23 19:54:53,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 6 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:53,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 5787 transitions. [2022-02-23 19:54:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-02-23 19:54:53,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:53,914 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 19:54:53,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:54,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-23 19:54:54,131 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:54,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:54,132 INFO L85 PathProgramCache]: Analyzing trace with hash -692994223, now seen corresponding path program 1 times [2022-02-23 19:54:54,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:54,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403737333] [2022-02-23 19:54:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:54,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:54,173 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-02-23 19:54:54,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:54,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403737333] [2022-02-23 19:54:54,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403737333] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:54,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:54,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:54,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214332553] [2022-02-23 19:54:54,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:54,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:54,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:54,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:54,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:54,175 INFO L87 Difference]: Start difference. First operand 4264 states and 5787 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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) [2022-02-23 19:54:54,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:54,361 INFO L93 Difference]: Finished difference Result 6947 states and 9481 transitions. [2022-02-23 19:54:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:54,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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 259 [2022-02-23 19:54:54,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:54,380 INFO L225 Difference]: With dead ends: 6947 [2022-02-23 19:54:54,380 INFO L226 Difference]: Without dead ends: 6947 [2022-02-23 19:54:54,380 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 [2022-02-23 19:54:54,381 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 334 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:54,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 380 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:54,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6947 states. [2022-02-23 19:54:54,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6947 to 6713. [2022-02-23 19:54:54,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6713 states, 6708 states have (on average 1.3711985688729875) internal successors, (9198), 6708 states have internal predecessors, (9198), 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) [2022-02-23 19:54:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9202 transitions. [2022-02-23 19:54:54,521 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9202 transitions. Word has length 259 [2022-02-23 19:54:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:54,521 INFO L470 AbstractCegarLoop]: Abstraction has 6713 states and 9202 transitions. [2022-02-23 19:54:54,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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) [2022-02-23 19:54:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9202 transitions. [2022-02-23 19:54:54,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-02-23 19:54:54,530 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:54,530 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:54,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 19:54:54,531 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:54,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 700446315, now seen corresponding path program 1 times [2022-02-23 19:54:54,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:54,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774700359] [2022-02-23 19:54:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:54,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:54,582 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 447 proven. 5 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-02-23 19:54:54,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:54,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774700359] [2022-02-23 19:54:54,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774700359] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:54,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712134900] [2022-02-23 19:54:54,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:54,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:54,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:54,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:54,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 19:54:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:54,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 19:54:54,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:55,004 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 382 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-02-23 19:54:55,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:54:55,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712134900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:55,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:54:55,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:54:55,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499650218] [2022-02-23 19:54:55,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:55,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:54:55,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:54:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:55,006 INFO L87 Difference]: Start difference. First operand 6713 states and 9202 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:55,115 INFO L93 Difference]: Finished difference Result 6297 states and 8314 transitions. [2022-02-23 19:54:55,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:54:55,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 272 [2022-02-23 19:54:55,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:55,131 INFO L225 Difference]: With dead ends: 6297 [2022-02-23 19:54:55,131 INFO L226 Difference]: Without dead ends: 6113 [2022-02-23 19:54:55,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:55,132 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 52 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:55,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 310 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:55,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6113 states. [2022-02-23 19:54:55,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6113 to 5861. [2022-02-23 19:54:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5861 states, 5856 states have (on average 1.342554644808743) internal successors, (7862), 5856 states have internal predecessors, (7862), 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) [2022-02-23 19:54:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5861 states to 5861 states and 7866 transitions. [2022-02-23 19:54:55,212 INFO L78 Accepts]: Start accepts. Automaton has 5861 states and 7866 transitions. Word has length 272 [2022-02-23 19:54:55,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:55,212 INFO L470 AbstractCegarLoop]: Abstraction has 5861 states and 7866 transitions. [2022-02-23 19:54:55,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:55,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5861 states and 7866 transitions. [2022-02-23 19:54:55,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-02-23 19:54:55,220 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:55,220 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:55,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:55,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-23 19:54:55,437 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1328188968, now seen corresponding path program 1 times [2022-02-23 19:54:55,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:55,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104543251] [2022-02-23 19:54:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:55,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 518 proven. 5 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-02-23 19:54:55,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:55,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104543251] [2022-02-23 19:54:55,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104543251] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:55,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446132261] [2022-02-23 19:54:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:55,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:55,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:55,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 19:54:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:55,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 19:54:55,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:55,859 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-02-23 19:54:55,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:54:55,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446132261] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:55,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:54:55,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:54:55,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133424113] [2022-02-23 19:54:55,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:55,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:54:55,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:55,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:54:55,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:55,861 INFO L87 Difference]: Start difference. First operand 5861 states and 7866 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:55,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:55,965 INFO L93 Difference]: Finished difference Result 6497 states and 8602 transitions. [2022-02-23 19:54:55,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:54:55,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 288 [2022-02-23 19:54:55,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:55,977 INFO L225 Difference]: With dead ends: 6497 [2022-02-23 19:54:55,977 INFO L226 Difference]: Without dead ends: 6177 [2022-02-23 19:54:55,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:55,978 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 104 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:55,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 260 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:55,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6177 states. [2022-02-23 19:54:56,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6177 to 5981. [2022-02-23 19:54:56,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5981 states, 5976 states have (on average 1.3423694779116466) internal successors, (8022), 5976 states have internal predecessors, (8022), 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) [2022-02-23 19:54:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5981 states to 5981 states and 8026 transitions. [2022-02-23 19:54:56,043 INFO L78 Accepts]: Start accepts. Automaton has 5981 states and 8026 transitions. Word has length 288 [2022-02-23 19:54:56,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:56,043 INFO L470 AbstractCegarLoop]: Abstraction has 5981 states and 8026 transitions. [2022-02-23 19:54:56,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5981 states and 8026 transitions. [2022-02-23 19:54:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-02-23 19:54:56,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:56,052 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:56,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-23 19:54:56,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:56,269 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:56,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1135566914, now seen corresponding path program 1 times [2022-02-23 19:54:56,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:56,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283214681] [2022-02-23 19:54:56,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:56,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:56,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 518 proven. 5 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-02-23 19:54:56,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:56,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283214681] [2022-02-23 19:54:56,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283214681] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:56,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347259749] [2022-02-23 19:54:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:56,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:56,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:56,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 19:54:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:56,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:56,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-02-23 19:54:56,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:54:56,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347259749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:56,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:54:56,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:54:56,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431468846] [2022-02-23 19:54:56,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:56,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:54:56,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:56,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:54:56,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:56,675 INFO L87 Difference]: Start difference. First operand 5981 states and 8026 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:56,767 INFO L93 Difference]: Finished difference Result 6161 states and 8246 transitions. [2022-02-23 19:54:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:54:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 289 [2022-02-23 19:54:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:56,780 INFO L225 Difference]: With dead ends: 6161 [2022-02-23 19:54:56,780 INFO L226 Difference]: Without dead ends: 6161 [2022-02-23 19:54:56,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:56,780 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:56,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 307 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:56,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6161 states. [2022-02-23 19:54:56,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6161 to 6041. [2022-02-23 19:54:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6041 states, 6036 states have (on average 1.3416169648774023) internal successors, (8098), 6036 states have internal predecessors, (8098), 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) [2022-02-23 19:54:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6041 states to 6041 states and 8102 transitions. [2022-02-23 19:54:56,838 INFO L78 Accepts]: Start accepts. Automaton has 6041 states and 8102 transitions. Word has length 289 [2022-02-23 19:54:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:56,838 INFO L470 AbstractCegarLoop]: Abstraction has 6041 states and 8102 transitions. [2022-02-23 19:54:56,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 6041 states and 8102 transitions. [2022-02-23 19:54:56,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-02-23 19:54:56,846 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:56,846 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:56,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:57,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-23 19:54:57,064 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:57,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1521555358, now seen corresponding path program 1 times [2022-02-23 19:54:57,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:57,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892520516] [2022-02-23 19:54:57,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:57,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-02-23 19:54:57,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:57,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892520516] [2022-02-23 19:54:57,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892520516] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:57,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026360159] [2022-02-23 19:54:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:57,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:57,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:57,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:57,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 19:54:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:57,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:57,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-02-23 19:54:57,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:54:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-02-23 19:54:57,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026360159] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:54:57,708 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:54:57,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-23 19:54:57,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711137179] [2022-02-23 19:54:57,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:54:57,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 19:54:57,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:57,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 19:54:57,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 19:54:57,709 INFO L87 Difference]: Start difference. First operand 6041 states and 8102 transitions. Second operand has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 6 states have internal predecessors, (202), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:58,254 INFO L93 Difference]: Finished difference Result 7358 states and 9677 transitions. [2022-02-23 19:54:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 19:54:58,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 6 states have internal predecessors, (202), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 289 [2022-02-23 19:54:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:58,263 INFO L225 Difference]: With dead ends: 7358 [2022-02-23 19:54:58,263 INFO L226 Difference]: Without dead ends: 7250 [2022-02-23 19:54:58,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-23 19:54:58,264 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 610 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:58,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 330 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-23 19:54:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2022-02-23 19:54:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 6422. [2022-02-23 19:54:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6422 states, 6417 states have (on average 1.3175938912264298) internal successors, (8455), 6417 states have internal predecessors, (8455), 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) [2022-02-23 19:54:58,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6422 states to 6422 states and 8459 transitions. [2022-02-23 19:54:58,323 INFO L78 Accepts]: Start accepts. Automaton has 6422 states and 8459 transitions. Word has length 289 [2022-02-23 19:54:58,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:58,323 INFO L470 AbstractCegarLoop]: Abstraction has 6422 states and 8459 transitions. [2022-02-23 19:54:58,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 6 states have internal predecessors, (202), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6422 states and 8459 transitions. [2022-02-23 19:54:58,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-02-23 19:54:58,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:58,329 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:58,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:58,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-02-23 19:54:58,546 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:58,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:58,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1079343622, now seen corresponding path program 1 times [2022-02-23 19:54:58,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:58,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130917729] [2022-02-23 19:54:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:58,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-02-23 19:54:58,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:58,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130917729] [2022-02-23 19:54:58,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130917729] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:58,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:58,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:58,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512781614] [2022-02-23 19:54:58,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:58,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:58,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:58,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:58,586 INFO L87 Difference]: Start difference. First operand 6422 states and 8459 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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) [2022-02-23 19:54:58,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:58,744 INFO L93 Difference]: Finished difference Result 4250 states and 5358 transitions. [2022-02-23 19:54:58,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:58,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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 327 [2022-02-23 19:54:58,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:58,748 INFO L225 Difference]: With dead ends: 4250 [2022-02-23 19:54:58,748 INFO L226 Difference]: Without dead ends: 3120 [2022-02-23 19:54:58,748 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 [2022-02-23 19:54:58,749 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 225 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:58,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 220 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:58,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2022-02-23 19:54:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 2850. [2022-02-23 19:54:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2845 states have (on average 1.3145869947275923) internal successors, (3740), 2845 states have internal predecessors, (3740), 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) [2022-02-23 19:54:58,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3744 transitions. [2022-02-23 19:54:58,769 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3744 transitions. Word has length 327 [2022-02-23 19:54:58,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:58,770 INFO L470 AbstractCegarLoop]: Abstraction has 2850 states and 3744 transitions. [2022-02-23 19:54:58,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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) [2022-02-23 19:54:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3744 transitions. [2022-02-23 19:54:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-02-23 19:54:58,773 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:58,773 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:58,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 19:54:58,773 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:58,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:58,774 INFO L85 PathProgramCache]: Analyzing trace with hash -596910312, now seen corresponding path program 1 times [2022-02-23 19:54:58,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:58,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799161722] [2022-02-23 19:54:58,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:58,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 454 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-02-23 19:54:58,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:58,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799161722] [2022-02-23 19:54:58,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799161722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:58,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:58,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:58,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209306795] [2022-02-23 19:54:58,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:58,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:58,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:58,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:58,810 INFO L87 Difference]: Start difference. First operand 2850 states and 3744 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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) [2022-02-23 19:54:58,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:58,950 INFO L93 Difference]: Finished difference Result 5616 states and 7330 transitions. [2022-02-23 19:54:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 343 [2022-02-23 19:54:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:58,958 INFO L225 Difference]: With dead ends: 5616 [2022-02-23 19:54:58,958 INFO L226 Difference]: Without dead ends: 5616 [2022-02-23 19:54:58,958 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 [2022-02-23 19:54:58,959 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 377 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:58,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 362 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2022-02-23 19:54:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 2860. [2022-02-23 19:54:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2855 states have (on average 1.3134851138353765) internal successors, (3750), 2855 states have internal predecessors, (3750), 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) [2022-02-23 19:54:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3754 transitions. [2022-02-23 19:54:59,017 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3754 transitions. Word has length 343 [2022-02-23 19:54:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:59,017 INFO L470 AbstractCegarLoop]: Abstraction has 2860 states and 3754 transitions. [2022-02-23 19:54:59,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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) [2022-02-23 19:54:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3754 transitions. [2022-02-23 19:54:59,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-02-23 19:54:59,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:59,021 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:59,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 19:54:59,022 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:59,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:59,022 INFO L85 PathProgramCache]: Analyzing trace with hash -106883111, now seen corresponding path program 1 times [2022-02-23 19:54:59,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:59,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341868848] [2022-02-23 19:54:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:59,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2022-02-23 19:54:59,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:59,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341868848] [2022-02-23 19:54:59,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341868848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:59,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:59,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:59,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923626822] [2022-02-23 19:54:59,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:59,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:59,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:59,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:59,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:59,071 INFO L87 Difference]: Start difference. First operand 2860 states and 3754 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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) [2022-02-23 19:54:59,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:59,262 INFO L93 Difference]: Finished difference Result 3198 states and 4192 transitions. [2022-02-23 19:54:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:59,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 343 [2022-02-23 19:54:59,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:59,266 INFO L225 Difference]: With dead ends: 3198 [2022-02-23 19:54:59,266 INFO L226 Difference]: Without dead ends: 3198 [2022-02-23 19:54:59,266 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 [2022-02-23 19:54:59,267 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:59,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 216 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2022-02-23 19:54:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 3130. [2022-02-23 19:54:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3125 states have (on average 1.3024) internal successors, (4070), 3125 states have internal predecessors, (4070), 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) [2022-02-23 19:54:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4074 transitions. [2022-02-23 19:54:59,299 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4074 transitions. Word has length 343 [2022-02-23 19:54:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:59,299 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 4074 transitions. [2022-02-23 19:54:59,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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) [2022-02-23 19:54:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4074 transitions. [2022-02-23 19:54:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-02-23 19:54:59,303 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:59,303 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:59,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 19:54:59,303 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:59,303 INFO L85 PathProgramCache]: Analyzing trace with hash 548161294, now seen corresponding path program 1 times [2022-02-23 19:54:59,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:59,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389222024] [2022-02-23 19:54:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:59,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 738 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-02-23 19:54:59,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:59,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389222024] [2022-02-23 19:54:59,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389222024] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:59,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:59,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:59,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767081357] [2022-02-23 19:54:59,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:59,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:59,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:59,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:59,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:59,353 INFO L87 Difference]: Start difference. First operand 3130 states and 4074 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-02-23 19:54:59,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:59,514 INFO L93 Difference]: Finished difference Result 3234 states and 4145 transitions. [2022-02-23 19:54:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:59,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 366 [2022-02-23 19:54:59,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:59,518 INFO L225 Difference]: With dead ends: 3234 [2022-02-23 19:54:59,519 INFO L226 Difference]: Without dead ends: 3234 [2022-02-23 19:54:59,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:54:59,520 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 204 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:59,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 216 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:59,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2022-02-23 19:54:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2327. [2022-02-23 19:54:59,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2322 states have (on average 1.2945736434108528) internal successors, (3006), 2322 states have internal predecessors, (3006), 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) [2022-02-23 19:54:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3010 transitions. [2022-02-23 19:54:59,540 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3010 transitions. Word has length 366 [2022-02-23 19:54:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:59,540 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3010 transitions. [2022-02-23 19:54:59,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-02-23 19:54:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3010 transitions. [2022-02-23 19:54:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-02-23 19:54:59,543 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:59,543 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:59,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 19:54:59,544 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:59,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:59,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1640275118, now seen corresponding path program 1 times [2022-02-23 19:54:59,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:59,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095231708] [2022-02-23 19:54:59,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:59,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:59,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:59,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 1011 proven. 26 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2022-02-23 19:54:59,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:59,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095231708] [2022-02-23 19:54:59,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095231708] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:59,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114745570] [2022-02-23 19:54:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:59,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:59,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:59,601 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:59,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-23 19:54:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:59,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:59,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:00,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-02-23 19:55:00,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:55:00,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114745570] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:00,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:55:00,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:55:00,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142983693] [2022-02-23 19:55:00,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:00,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:55:00,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:00,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:55:00,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:00,163 INFO L87 Difference]: Start difference. First operand 2327 states and 3010 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:00,175 INFO L93 Difference]: Finished difference Result 2708 states and 3519 transitions. [2022-02-23 19:55:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:55:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-02-23 19:55:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:00,178 INFO L225 Difference]: With dead ends: 2708 [2022-02-23 19:55:00,178 INFO L226 Difference]: Without dead ends: 2708 [2022-02-23 19:55:00,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:00,179 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 89 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:00,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 541 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 19:55:00,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2022-02-23 19:55:00,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2237. [2022-02-23 19:55:00,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2232 states have (on average 1.3015232974910393) internal successors, (2905), 2232 states have internal predecessors, (2905), 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) [2022-02-23 19:55:00,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 2909 transitions. [2022-02-23 19:55:00,198 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 2909 transitions. Word has length 399 [2022-02-23 19:55:00,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:00,198 INFO L470 AbstractCegarLoop]: Abstraction has 2237 states and 2909 transitions. [2022-02-23 19:55:00,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 2909 transitions. [2022-02-23 19:55:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2022-02-23 19:55:00,202 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:00,202 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:00,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:00,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:00,419 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:00,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash -496679725, now seen corresponding path program 1 times [2022-02-23 19:55:00,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:00,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484747292] [2022-02-23 19:55:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:00,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:00,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2022-02-23 19:55:00,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:00,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484747292] [2022-02-23 19:55:00,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484747292] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:00,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621815616] [2022-02-23 19:55:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:00,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:00,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:00,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:55:00,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-23 19:55:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:00,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:55:00,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2022-02-23 19:55:01,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:55:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2022-02-23 19:55:01,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621815616] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:55:01,812 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:55:01,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-23 19:55:01,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490050619] [2022-02-23 19:55:01,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:55:01,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 19:55:01,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 19:55:01,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 19:55:01,814 INFO L87 Difference]: Start difference. First operand 2237 states and 2909 transitions. Second operand has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 6 states have internal predecessors, (265), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:02,267 INFO L93 Difference]: Finished difference Result 2885 states and 3711 transitions. [2022-02-23 19:55:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 19:55:02,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 6 states have internal predecessors, (265), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 539 [2022-02-23 19:55:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:02,271 INFO L225 Difference]: With dead ends: 2885 [2022-02-23 19:55:02,271 INFO L226 Difference]: Without dead ends: 2844 [2022-02-23 19:55:02,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1093 GetRequests, 1083 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:55:02,272 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 766 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:02,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 315 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-23 19:55:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2022-02-23 19:55:02,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2369. [2022-02-23 19:55:02,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 2364 states have (on average 1.3066835871404399) internal successors, (3089), 2364 states have internal predecessors, (3089), 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) [2022-02-23 19:55:02,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 3093 transitions. [2022-02-23 19:55:02,303 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 3093 transitions. Word has length 539 [2022-02-23 19:55:02,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:02,303 INFO L470 AbstractCegarLoop]: Abstraction has 2369 states and 3093 transitions. [2022-02-23 19:55:02,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.857142857142854) internal successors, (265), 6 states have internal predecessors, (265), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:02,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 3093 transitions. [2022-02-23 19:55:02,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2022-02-23 19:55:02,307 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:02,308 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 19, 19, 17, 17, 15, 15, 13, 13, 13, 13, 10, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:02,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:02,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:02,516 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:02,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2145656503, now seen corresponding path program 1 times [2022-02-23 19:55:02,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:02,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336237809] [2022-02-23 19:55:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:02,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4971 backedges. 2404 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2022-02-23 19:55:02,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:02,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336237809] [2022-02-23 19:55:02,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336237809] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:02,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:02,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:02,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477747176] [2022-02-23 19:55:02,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:02,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:02,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:02,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:02,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:02,585 INFO L87 Difference]: Start difference. First operand 2369 states and 3093 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2022-02-23 19:55:02,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:02,764 INFO L93 Difference]: Finished difference Result 2693 states and 3462 transitions. [2022-02-23 19:55:02,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:02,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 667 [2022-02-23 19:55:02,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:02,768 INFO L225 Difference]: With dead ends: 2693 [2022-02-23 19:55:02,768 INFO L226 Difference]: Without dead ends: 2693 [2022-02-23 19:55:02,768 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 [2022-02-23 19:55:02,768 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 203 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:02,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 215 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:02,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-02-23 19:55:02,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2675. [2022-02-23 19:55:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2670 states have (on average 1.2883895131086143) internal successors, (3440), 2670 states have internal predecessors, (3440), 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) [2022-02-23 19:55:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3444 transitions. [2022-02-23 19:55:02,798 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3444 transitions. Word has length 667 [2022-02-23 19:55:02,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:02,798 INFO L470 AbstractCegarLoop]: Abstraction has 2675 states and 3444 transitions. [2022-02-23 19:55:02,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2022-02-23 19:55:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3444 transitions. [2022-02-23 19:55:02,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2022-02-23 19:55:02,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:02,804 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 21, 21, 19, 19, 17, 17, 15, 15, 15, 15, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:02,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 19:55:02,804 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:02,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:02,805 INFO L85 PathProgramCache]: Analyzing trace with hash -448877969, now seen corresponding path program 1 times [2022-02-23 19:55:02,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:02,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619680827] [2022-02-23 19:55:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:02,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:02,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2022-02-23 19:55:02,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:02,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619680827] [2022-02-23 19:55:02,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619680827] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:02,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216375915] [2022-02-23 19:55:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:02,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:02,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:02,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:55:02,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-23 19:55:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:03,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:55:03,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2022-02-23 19:55:03,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:55:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2022-02-23 19:55:04,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216375915] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:55:04,568 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:55:04,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-02-23 19:55:04,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062972244] [2022-02-23 19:55:04,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:55:04,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-23 19:55:04,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:04,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-23 19:55:04,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-23 19:55:04,570 INFO L87 Difference]: Start difference. First operand 2675 states and 3444 transitions. Second operand has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 8 states have internal predecessors, (329), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:05,145 INFO L93 Difference]: Finished difference Result 1655 states and 2080 transitions. [2022-02-23 19:55:05,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 19:55:05,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 8 states have internal predecessors, (329), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 729 [2022-02-23 19:55:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:05,146 INFO L225 Difference]: With dead ends: 1655 [2022-02-23 19:55:05,146 INFO L226 Difference]: Without dead ends: 0 [2022-02-23 19:55:05,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1473 GetRequests, 1461 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-02-23 19:55:05,147 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 398 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:05,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 314 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-23 19:55:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-23 19:55:05,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-23 19:55:05,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-23 19:55:05,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-23 19:55:05,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 729 [2022-02-23 19:55:05,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:05,147 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-23 19:55:05,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 8 states have internal predecessors, (329), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-23 19:55:05,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-23 19:55:05,149 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-23 19:55:05,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:05,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-02-23 19:55:05,370 INFO L732 BasicCegarLoop]: Path program 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] [2022-02-23 19:55:05,371 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-23 19:55:05,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:55:05 BasicIcfg [2022-02-23 19:55:05,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-23 19:55:05,373 INFO L158 Benchmark]: Toolchain (without parser) took 17932.67ms. Allocated memory was 207.6MB in the beginning and 423.6MB in the end (delta: 216.0MB). Free memory was 174.3MB in the beginning and 254.0MB in the end (delta: -79.7MB). Peak memory consumption was 136.4MB. Max. memory is 8.0GB. [2022-02-23 19:55:05,373 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 207.6MB. Free memory is still 168.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-23 19:55:05,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.23ms. Allocated memory is still 207.6MB. Free memory was 174.2MB in the beginning and 176.1MB in the end (delta: -1.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-23 19:55:05,373 INFO L158 Benchmark]: Boogie Preprocessor took 66.99ms. Allocated memory is still 207.6MB. Free memory was 176.1MB in the beginning and 173.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-23 19:55:05,373 INFO L158 Benchmark]: RCFGBuilder took 461.78ms. Allocated memory is still 207.6MB. Free memory was 173.4MB in the beginning and 146.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-02-23 19:55:05,374 INFO L158 Benchmark]: IcfgTransformer took 25.75ms. Allocated memory is still 207.6MB. Free memory was 146.1MB in the beginning and 143.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-23 19:55:05,374 INFO L158 Benchmark]: TraceAbstraction took 17115.94ms. Allocated memory was 207.6MB in the beginning and 423.6MB in the end (delta: 216.0MB). Free memory was 142.5MB in the beginning and 254.0MB in the end (delta: -111.4MB). Peak memory consumption was 105.1MB. Max. memory is 8.0GB. [2022-02-23 19:55:05,374 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 207.6MB. Free memory is still 168.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 254.23ms. Allocated memory is still 207.6MB. Free memory was 174.2MB in the beginning and 176.1MB in the end (delta: -1.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.99ms. Allocated memory is still 207.6MB. Free memory was 176.1MB in the beginning and 173.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 461.78ms. Allocated memory is still 207.6MB. Free memory was 173.4MB in the beginning and 146.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * IcfgTransformer took 25.75ms. Allocated memory is still 207.6MB. Free memory was 146.1MB in the beginning and 143.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17115.94ms. Allocated memory was 207.6MB in the beginning and 423.6MB in the end (delta: 216.0MB). Free memory was 142.5MB in the beginning and 254.0MB in the end (delta: -111.4MB). Peak memory consumption was 105.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 26, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7886 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7884 mSDsluCounter, 7556 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 633 mSDsCounter, 736 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8695 IncrementalHoareTripleChecker+Invalid, 9431 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 736 mSolverCounterUnsat, 6923 mSDtfsCounter, 8695 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5089 GetRequests, 4975 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6713occurred in iteration=14, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 26 MinimizatonAttempts, 7801 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 10081 NumberOfCodeBlocks, 10081 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 11859 ConstructedInterpolants, 0 QuantifiedInterpolants, 15458 SizeOfPredicates, 4 NumberOfNonLiveVariables, 5640 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 38 InterpolantComputations, 22 PerfectInterpolantSequences, 50691/50924 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-23 19:55:05,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...