/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_7.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:17:06,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:17:06,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:17:06,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:17:06,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:17:06,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:17:06,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:17:06,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:17:06,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:17:06,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:17:06,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:17:06,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:17:06,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:17:06,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:17:06,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:17:06,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:17:06,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:17:06,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:17:06,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:17:06,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:17:06,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:17:06,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:17:06,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:17:06,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:17:06,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:17:06,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:17:06,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:17:06,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:17:06,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:17:06,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:17:06,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:17:06,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:17:06,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:17:06,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:17:06,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:17:06,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:17:06,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:17:06,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:17:06,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:17:06,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:17:06,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:17:06,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:17:06,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:17:06,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:17:06,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:17:06,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:17:06,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:17:06,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:17:06,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:17:06,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:17:06,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:17:06,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:17:06,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:17:06,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:17:06,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:17:06,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:17:06,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:17:06,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:17:06,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:17:06,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:17:06,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:17:06,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:17:06,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:17:06,603 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:17:06,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:17:06,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:17:06,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:17:06,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:17:06,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:17:06,787 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:17:06,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_7.cil.c [2022-01-31 16:17:06,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fb3bcf1b/49cdc590dd424183acbb45e27630bdd9/FLAG75d2c84a3 [2022-01-31 16:17:07,232 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:17:07,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_7.cil.c [2022-01-31 16:17:07,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fb3bcf1b/49cdc590dd424183acbb45e27630bdd9/FLAG75d2c84a3 [2022-01-31 16:17:07,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fb3bcf1b/49cdc590dd424183acbb45e27630bdd9 [2022-01-31 16:17:07,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:17:07,259 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:17:07,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:17:07,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:17:07,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:17:07,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169778f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07, skipping insertion in model container [2022-01-31 16:17:07,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:17:07,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:17:07,498 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_7.cil.c[44376,44389] [2022-01-31 16:17:07,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:17:07,512 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:17:07,547 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_7.cil.c[44376,44389] [2022-01-31 16:17:07,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:17:07,561 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:17:07,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07 WrapperNode [2022-01-31 16:17:07,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:17:07,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:17:07,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:17:07,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:17:07,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:17:07,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:17:07,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:17:07,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:17:07,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (1/1) ... [2022-01-31 16:17:07,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:17:07,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:17:07,629 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) [2022-01-31 16:17:07,634 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 [2022-01-31 16:17:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:17:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:17:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:17:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:17:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:17:07,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:17:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:17:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:17:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:17:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:17:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:17:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:17:07,747 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:17:07,748 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:17:07,802 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:17:08,110 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-31 16:17:08,110 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-31 16:17:08,115 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:17:08,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:17:08,121 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:17:08,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:17:08 BoogieIcfgContainer [2022-01-31 16:17:08,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:17:08,123 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:17:08,123 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:17:08,124 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:17:08,126 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:17:08" (1/1) ... [2022-01-31 16:17:08,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:17:08 BasicIcfg [2022-01-31 16:17:08,149 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:17:08,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:17:08,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:17:08,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:17:08,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:17:07" (1/4) ... [2022-01-31 16:17:08,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bba659d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:17:08, skipping insertion in model container [2022-01-31 16:17:08,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:17:07" (2/4) ... [2022-01-31 16:17:08,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bba659d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:17:08, skipping insertion in model container [2022-01-31 16:17:08,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:17:08" (3/4) ... [2022-01-31 16:17:08,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bba659d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:17:08, skipping insertion in model container [2022-01-31 16:17:08,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:17:08" (4/4) ... [2022-01-31 16:17:08,168 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_7.cil.cJordan [2022-01-31 16:17:08,172 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:17:08,172 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:17:08,201 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:17:08,205 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 [2022-01-31 16:17:08,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:17:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7210884353741496) internal successors, (253), 148 states have internal predecessors, (253), 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) [2022-01-31 16:17:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-31 16:17:08,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:08,232 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] [2022-01-31 16:17:08,233 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:08,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1368554690, now seen corresponding path program 1 times [2022-01-31 16:17:08,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:08,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387779968] [2022-01-31 16:17:08,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:08,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:17:08,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:08,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387779968] [2022-01-31 16:17:08,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387779968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:08,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:08,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:08,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007448301] [2022-01-31 16:17:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:08,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:08,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:08,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:08,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:08,539 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7210884353741496) internal successors, (253), 148 states have internal predecessors, (253), 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 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-01-31 16:17:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:08,838 INFO L93 Difference]: Finished difference Result 288 states and 476 transitions. [2022-01-31 16:17:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:08,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 39 [2022-01-31 16:17:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:08,851 INFO L225 Difference]: With dead ends: 288 [2022-01-31 16:17:08,851 INFO L226 Difference]: Without dead ends: 261 [2022-01-31 16:17:08,853 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 [2022-01-31 16:17:08,855 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 665 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:08,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 254 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:08,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-31 16:17:08,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-01-31 16:17:08,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5234375) internal successors, (390), 256 states have internal predecessors, (390), 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) [2022-01-31 16:17:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 394 transitions. [2022-01-31 16:17:08,893 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 394 transitions. Word has length 39 [2022-01-31 16:17:08,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:08,893 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 394 transitions. [2022-01-31 16:17:08,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-01-31 16:17:08,894 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 394 transitions. [2022-01-31 16:17:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-31 16:17:08,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:08,896 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] [2022-01-31 16:17:08,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:17:08,896 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:08,897 INFO L85 PathProgramCache]: Analyzing trace with hash 545618672, now seen corresponding path program 1 times [2022-01-31 16:17:08,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:08,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016167877] [2022-01-31 16:17:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:08,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:17:08,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:08,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016167877] [2022-01-31 16:17:08,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016167877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:08,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:08,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:08,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826212709] [2022-01-31 16:17:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:08,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:08,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:08,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:08,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:08,949 INFO L87 Difference]: Start difference. First operand 261 states and 394 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-01-31 16:17:09,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:09,165 INFO L93 Difference]: Finished difference Result 290 states and 431 transitions. [2022-01-31 16:17:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:09,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 55 [2022-01-31 16:17:09,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:09,167 INFO L225 Difference]: With dead ends: 290 [2022-01-31 16:17:09,167 INFO L226 Difference]: Without dead ends: 290 [2022-01-31 16:17:09,168 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 [2022-01-31 16:17:09,168 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 225 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:09,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 230 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:09,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-01-31 16:17:09,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 282. [2022-01-31 16:17:09,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5018050541516246) internal successors, (416), 277 states have internal predecessors, (416), 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) [2022-01-31 16:17:09,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 420 transitions. [2022-01-31 16:17:09,180 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 420 transitions. Word has length 55 [2022-01-31 16:17:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:09,180 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 420 transitions. [2022-01-31 16:17:09,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-01-31 16:17:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 420 transitions. [2022-01-31 16:17:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-31 16:17:09,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:09,183 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] [2022-01-31 16:17:09,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:17:09,183 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:09,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:09,183 INFO L85 PathProgramCache]: Analyzing trace with hash 546117200, now seen corresponding path program 1 times [2022-01-31 16:17:09,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:09,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866010661] [2022-01-31 16:17:09,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:09,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:17:09,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:09,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866010661] [2022-01-31 16:17:09,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866010661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:09,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:09,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:09,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896822534] [2022-01-31 16:17:09,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:09,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:09,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:09,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:09,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:09,240 INFO L87 Difference]: Start difference. First operand 282 states and 420 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) [2022-01-31 16:17:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:09,485 INFO L93 Difference]: Finished difference Result 392 states and 558 transitions. [2022-01-31 16:17:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:09,485 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 76 [2022-01-31 16:17:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:09,487 INFO L225 Difference]: With dead ends: 392 [2022-01-31 16:17:09,487 INFO L226 Difference]: Without dead ends: 392 [2022-01-31 16:17:09,487 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 [2022-01-31 16:17:09,488 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 269 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:09,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 229 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:09,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-01-31 16:17:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 364. [2022-01-31 16:17:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 359 states have (on average 1.4317548746518105) internal successors, (514), 359 states have internal predecessors, (514), 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) [2022-01-31 16:17:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 518 transitions. [2022-01-31 16:17:09,499 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 518 transitions. Word has length 76 [2022-01-31 16:17:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:09,499 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 518 transitions. [2022-01-31 16:17:09,499 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) [2022-01-31 16:17:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 518 transitions. [2022-01-31 16:17:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-31 16:17:09,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:09,502 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] [2022-01-31 16:17:09,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:17:09,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:09,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:09,503 INFO L85 PathProgramCache]: Analyzing trace with hash 896917137, now seen corresponding path program 1 times [2022-01-31 16:17:09,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:09,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766988681] [2022-01-31 16:17:09,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:09,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:17:09,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:09,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766988681] [2022-01-31 16:17:09,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766988681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:09,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:09,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:09,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119248543] [2022-01-31 16:17:09,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:09,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:09,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:09,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:09,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:09,550 INFO L87 Difference]: Start difference. First operand 364 states and 518 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) [2022-01-31 16:17:09,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:09,765 INFO L93 Difference]: Finished difference Result 420 states and 587 transitions. [2022-01-31 16:17:09,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:09,766 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 76 [2022-01-31 16:17:09,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:09,768 INFO L225 Difference]: With dead ends: 420 [2022-01-31 16:17:09,768 INFO L226 Difference]: Without dead ends: 420 [2022-01-31 16:17:09,768 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 [2022-01-31 16:17:09,769 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 228 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:09,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 231 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:09,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-01-31 16:17:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 410. [2022-01-31 16:17:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 405 states have (on average 1.4074074074074074) internal successors, (570), 405 states have internal predecessors, (570), 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) [2022-01-31 16:17:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 574 transitions. [2022-01-31 16:17:09,778 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 574 transitions. Word has length 76 [2022-01-31 16:17:09,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:09,778 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 574 transitions. [2022-01-31 16:17:09,778 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) [2022-01-31 16:17:09,779 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 574 transitions. [2022-01-31 16:17:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-31 16:17:09,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:09,781 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:09,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:17:09,781 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:09,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:09,781 INFO L85 PathProgramCache]: Analyzing trace with hash -907932217, now seen corresponding path program 1 times [2022-01-31 16:17:09,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:09,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402021820] [2022-01-31 16:17:09,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:09,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:09,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:09,824 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:17:09,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:09,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402021820] [2022-01-31 16:17:09,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402021820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:09,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:09,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:09,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165460696] [2022-01-31 16:17:09,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:09,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:09,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:09,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:09,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:09,827 INFO L87 Difference]: Start difference. First operand 410 states and 574 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:10,020 INFO L93 Difference]: Finished difference Result 606 states and 851 transitions. [2022-01-31 16:17:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:10,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-01-31 16:17:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:10,023 INFO L225 Difference]: With dead ends: 606 [2022-01-31 16:17:10,023 INFO L226 Difference]: Without dead ends: 600 [2022-01-31 16:17:10,023 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 [2022-01-31 16:17:10,024 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:10,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 229 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:10,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-01-31 16:17:10,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 586. [2022-01-31 16:17:10,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 581 states have (on average 1.4182444061962134) internal successors, (824), 581 states have internal predecessors, (824), 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) [2022-01-31 16:17:10,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 828 transitions. [2022-01-31 16:17:10,034 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 828 transitions. Word has length 89 [2022-01-31 16:17:10,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:10,034 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 828 transitions. [2022-01-31 16:17:10,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:10,035 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 828 transitions. [2022-01-31 16:17:10,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-31 16:17:10,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:10,036 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] [2022-01-31 16:17:10,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:17:10,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:10,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:10,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1650011472, now seen corresponding path program 1 times [2022-01-31 16:17:10,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:10,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835355076] [2022-01-31 16:17:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:10,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:17:10,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:10,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835355076] [2022-01-31 16:17:10,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835355076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:10,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:10,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:10,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444399251] [2022-01-31 16:17:10,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:10,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:10,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:10,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:10,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:10,108 INFO L87 Difference]: Start difference. First operand 586 states and 828 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2022-01-31 16:17:10,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:10,345 INFO L93 Difference]: Finished difference Result 664 states and 933 transitions. [2022-01-31 16:17:10,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:10,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 97 [2022-01-31 16:17:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:10,348 INFO L225 Difference]: With dead ends: 664 [2022-01-31 16:17:10,348 INFO L226 Difference]: Without dead ends: 664 [2022-01-31 16:17:10,348 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 [2022-01-31 16:17:10,351 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 260 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:10,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 230 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-01-31 16:17:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 636. [2022-01-31 16:17:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.4009508716323296) internal successors, (884), 631 states have internal predecessors, (884), 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) [2022-01-31 16:17:10,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 888 transitions. [2022-01-31 16:17:10,367 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 888 transitions. Word has length 97 [2022-01-31 16:17:10,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:10,368 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 888 transitions. [2022-01-31 16:17:10,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2022-01-31 16:17:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 888 transitions. [2022-01-31 16:17:10,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 16:17:10,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:10,370 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:10,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:17:10,371 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:10,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:10,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1246835362, now seen corresponding path program 1 times [2022-01-31 16:17:10,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:10,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280682498] [2022-01-31 16:17:10,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:10,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-01-31 16:17:10,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:10,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280682498] [2022-01-31 16:17:10,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280682498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:10,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:10,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:10,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874650992] [2022-01-31 16:17:10,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:10,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:10,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:10,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:10,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:10,430 INFO L87 Difference]: Start difference. First operand 636 states and 888 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-01-31 16:17:10,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:10,554 INFO L93 Difference]: Finished difference Result 1244 states and 1730 transitions. [2022-01-31 16:17:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:10,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 123 [2022-01-31 16:17:10,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:10,567 INFO L225 Difference]: With dead ends: 1244 [2022-01-31 16:17:10,567 INFO L226 Difference]: Without dead ends: 1244 [2022-01-31 16:17:10,567 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 [2022-01-31 16:17:10,568 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 389 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:10,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 393 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:17:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-01-31 16:17:10,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 638. [2022-01-31 16:17:10,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.3996840442338072) internal successors, (886), 633 states have internal predecessors, (886), 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) [2022-01-31 16:17:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 890 transitions. [2022-01-31 16:17:10,596 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 890 transitions. Word has length 123 [2022-01-31 16:17:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:10,596 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 890 transitions. [2022-01-31 16:17:10,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-01-31 16:17:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 890 transitions. [2022-01-31 16:17:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 16:17:10,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:10,598 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:10,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:17:10,608 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:10,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2022639935, now seen corresponding path program 1 times [2022-01-31 16:17:10,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:10,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56744664] [2022-01-31 16:17:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:10,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-01-31 16:17:10,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:10,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56744664] [2022-01-31 16:17:10,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56744664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:10,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:10,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:10,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484504869] [2022-01-31 16:17:10,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:10,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:10,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:10,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:10,675 INFO L87 Difference]: Start difference. First operand 638 states and 890 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) [2022-01-31 16:17:10,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:10,835 INFO L93 Difference]: Finished difference Result 916 states and 1282 transitions. [2022-01-31 16:17:10,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:10,836 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 123 [2022-01-31 16:17:10,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:10,838 INFO L225 Difference]: With dead ends: 916 [2022-01-31 16:17:10,838 INFO L226 Difference]: Without dead ends: 916 [2022-01-31 16:17:10,838 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 [2022-01-31 16:17:10,839 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 342 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:10,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 386 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:17:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-01-31 16:17:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 916. [2022-01-31 16:17:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 911 states have (on average 1.402854006586169) internal successors, (1278), 911 states have internal predecessors, (1278), 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) [2022-01-31 16:17:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1282 transitions. [2022-01-31 16:17:10,866 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1282 transitions. Word has length 123 [2022-01-31 16:17:10,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:10,867 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1282 transitions. [2022-01-31 16:17:10,867 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) [2022-01-31 16:17:10,867 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1282 transitions. [2022-01-31 16:17:10,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 16:17:10,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:10,868 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:10,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:17:10,869 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1701076128, now seen corresponding path program 1 times [2022-01-31 16:17:10,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:10,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100419560] [2022-01-31 16:17:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:10,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-01-31 16:17:10,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:10,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100419560] [2022-01-31 16:17:10,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100419560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:10,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:10,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:10,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667383875] [2022-01-31 16:17:10,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:10,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:10,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:10,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:10,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:10,906 INFO L87 Difference]: Start difference. First operand 916 states and 1282 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 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) [2022-01-31 16:17:11,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:11,067 INFO L93 Difference]: Finished difference Result 940 states and 1311 transitions. [2022-01-31 16:17:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:11,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 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 123 [2022-01-31 16:17:11,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:11,070 INFO L225 Difference]: With dead ends: 940 [2022-01-31 16:17:11,070 INFO L226 Difference]: Without dead ends: 940 [2022-01-31 16:17:11,070 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 [2022-01-31 16:17:11,072 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 217 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:11,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 245 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:17:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-01-31 16:17:11,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2022-01-31 16:17:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.397860962566845) internal successors, (1307), 935 states have internal predecessors, (1307), 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) [2022-01-31 16:17:11,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1311 transitions. [2022-01-31 16:17:11,086 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1311 transitions. Word has length 123 [2022-01-31 16:17:11,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:11,086 INFO L470 AbstractCegarLoop]: Abstraction has 940 states and 1311 transitions. [2022-01-31 16:17:11,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 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) [2022-01-31 16:17:11,087 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1311 transitions. [2022-01-31 16:17:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-31 16:17:11,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:11,088 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:11,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:17:11,088 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:11,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:11,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1166481160, now seen corresponding path program 1 times [2022-01-31 16:17:11,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:11,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53645358] [2022-01-31 16:17:11,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:11,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,146 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-01-31 16:17:11,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:11,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53645358] [2022-01-31 16:17:11,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53645358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:11,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:11,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:11,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145495807] [2022-01-31 16:17:11,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:11,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:11,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:11,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:11,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:11,148 INFO L87 Difference]: Start difference. First operand 940 states and 1311 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-01-31 16:17:11,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:11,316 INFO L93 Difference]: Finished difference Result 1264 states and 1764 transitions. [2022-01-31 16:17:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:11,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 125 [2022-01-31 16:17:11,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:11,320 INFO L225 Difference]: With dead ends: 1264 [2022-01-31 16:17:11,320 INFO L226 Difference]: Without dead ends: 1264 [2022-01-31 16:17:11,320 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 [2022-01-31 16:17:11,320 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 549 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:11,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 202 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:11,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-01-31 16:17:11,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1262. [2022-01-31 16:17:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1257 states have (on average 1.3993635640413684) internal successors, (1759), 1257 states have internal predecessors, (1759), 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) [2022-01-31 16:17:11,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1763 transitions. [2022-01-31 16:17:11,336 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1763 transitions. Word has length 125 [2022-01-31 16:17:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:11,336 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 1763 transitions. [2022-01-31 16:17:11,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-01-31 16:17:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1763 transitions. [2022-01-31 16:17:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-31 16:17:11,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:11,338 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:11,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:17:11,339 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:11,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:11,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1151554362, now seen corresponding path program 1 times [2022-01-31 16:17:11,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:11,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137215575] [2022-01-31 16:17:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:11,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-01-31 16:17:11,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:11,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137215575] [2022-01-31 16:17:11,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137215575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:11,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:11,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:11,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582325416] [2022-01-31 16:17:11,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:11,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:11,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:11,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:11,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:11,381 INFO L87 Difference]: Start difference. First operand 1262 states and 1763 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-01-31 16:17:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:11,548 INFO L93 Difference]: Finished difference Result 1586 states and 2217 transitions. [2022-01-31 16:17:11,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:11,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 126 [2022-01-31 16:17:11,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:11,553 INFO L225 Difference]: With dead ends: 1586 [2022-01-31 16:17:11,553 INFO L226 Difference]: Without dead ends: 1586 [2022-01-31 16:17:11,553 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 [2022-01-31 16:17:11,554 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 557 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:11,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 200 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:17:11,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-01-31 16:17:11,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1584. [2022-01-31 16:17:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1579 states have (on average 1.4008866371120963) internal successors, (2212), 1579 states have internal predecessors, (2212), 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) [2022-01-31 16:17:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2216 transitions. [2022-01-31 16:17:11,574 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2216 transitions. Word has length 126 [2022-01-31 16:17:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:11,575 INFO L470 AbstractCegarLoop]: Abstraction has 1584 states and 2216 transitions. [2022-01-31 16:17:11,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-01-31 16:17:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2216 transitions. [2022-01-31 16:17:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-31 16:17:11,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:11,577 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:11,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:17:11,577 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:11,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1844687042, now seen corresponding path program 1 times [2022-01-31 16:17:11,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:11,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423424074] [2022-01-31 16:17:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:11,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-01-31 16:17:11,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:11,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423424074] [2022-01-31 16:17:11,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423424074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:11,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:11,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:11,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066967632] [2022-01-31 16:17:11,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:11,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:11,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:11,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:11,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:11,618 INFO L87 Difference]: Start difference. First operand 1584 states and 2216 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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) [2022-01-31 16:17:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:11,831 INFO L93 Difference]: Finished difference Result 1766 states and 2448 transitions. [2022-01-31 16:17:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:11,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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 132 [2022-01-31 16:17:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:11,836 INFO L225 Difference]: With dead ends: 1766 [2022-01-31 16:17:11,836 INFO L226 Difference]: Without dead ends: 1766 [2022-01-31 16:17:11,836 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 [2022-01-31 16:17:11,836 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 242 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:11,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 231 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:11,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-01-31 16:17:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1719. [2022-01-31 16:17:11,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1714 states have (on average 1.38389731621937) internal successors, (2372), 1714 states have internal predecessors, (2372), 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) [2022-01-31 16:17:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2376 transitions. [2022-01-31 16:17:11,861 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2376 transitions. Word has length 132 [2022-01-31 16:17:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:11,861 INFO L470 AbstractCegarLoop]: Abstraction has 1719 states and 2376 transitions. [2022-01-31 16:17:11,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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) [2022-01-31 16:17:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2376 transitions. [2022-01-31 16:17:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-01-31 16:17:11,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:11,863 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:11,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:17:11,863 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:11,864 INFO L85 PathProgramCache]: Analyzing trace with hash 151963944, now seen corresponding path program 1 times [2022-01-31 16:17:11,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:11,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650071438] [2022-01-31 16:17:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:11,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:11,893 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:17:11,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:11,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650071438] [2022-01-31 16:17:11,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650071438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:11,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:11,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:11,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743953861] [2022-01-31 16:17:11,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:11,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:11,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:11,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:11,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:11,894 INFO L87 Difference]: Start difference. First operand 1719 states and 2376 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-01-31 16:17:12,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:12,043 INFO L93 Difference]: Finished difference Result 1755 states and 2411 transitions. [2022-01-31 16:17:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:12,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 136 [2022-01-31 16:17:12,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:12,048 INFO L225 Difference]: With dead ends: 1755 [2022-01-31 16:17:12,048 INFO L226 Difference]: Without dead ends: 1751 [2022-01-31 16:17:12,048 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 [2022-01-31 16:17:12,049 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 351 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:12,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 229 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:17:12,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-01-31 16:17:12,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1731. [2022-01-31 16:17:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1726 states have (on average 1.3789107763615296) internal successors, (2380), 1726 states have internal predecessors, (2380), 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) [2022-01-31 16:17:12,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2384 transitions. [2022-01-31 16:17:12,076 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2384 transitions. Word has length 136 [2022-01-31 16:17:12,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:12,076 INFO L470 AbstractCegarLoop]: Abstraction has 1731 states and 2384 transitions. [2022-01-31 16:17:12,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-01-31 16:17:12,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2384 transitions. [2022-01-31 16:17:12,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 16:17:12,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:12,078 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:12,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:17:12,078 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:12,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:12,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1593596309, now seen corresponding path program 1 times [2022-01-31 16:17:12,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:12,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364436429] [2022-01-31 16:17:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:12,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:12,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-01-31 16:17:12,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:12,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364436429] [2022-01-31 16:17:12,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364436429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:12,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:12,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:12,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210363992] [2022-01-31 16:17:12,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:12,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:12,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:12,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:12,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:12,120 INFO L87 Difference]: Start difference. First operand 1731 states and 2384 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) [2022-01-31 16:17:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:12,309 INFO L93 Difference]: Finished difference Result 1886 states and 2564 transitions. [2022-01-31 16:17:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:12,309 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 155 [2022-01-31 16:17:12,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:12,314 INFO L225 Difference]: With dead ends: 1886 [2022-01-31 16:17:12,314 INFO L226 Difference]: Without dead ends: 1886 [2022-01-31 16:17:12,314 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 [2022-01-31 16:17:12,315 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 218 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:12,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 230 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2022-01-31 16:17:12,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1876. [2022-01-31 16:17:12,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1871 states have (on average 1.3629075360769642) internal successors, (2550), 1871 states have internal predecessors, (2550), 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) [2022-01-31 16:17:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2554 transitions. [2022-01-31 16:17:12,340 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2554 transitions. Word has length 155 [2022-01-31 16:17:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:12,340 INFO L470 AbstractCegarLoop]: Abstraction has 1876 states and 2554 transitions. [2022-01-31 16:17:12,340 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) [2022-01-31 16:17:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2554 transitions. [2022-01-31 16:17:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-31 16:17:12,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:12,342 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:12,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:17:12,342 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:12,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:12,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1653252751, now seen corresponding path program 1 times [2022-01-31 16:17:12,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:12,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847886256] [2022-01-31 16:17:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:12,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:12,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-01-31 16:17:12,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:12,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847886256] [2022-01-31 16:17:12,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847886256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:12,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:12,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:12,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298609917] [2022-01-31 16:17:12,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:12,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:12,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:12,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:12,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:12,380 INFO L87 Difference]: Start difference. First operand 1876 states and 2554 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-01-31 16:17:12,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:12,563 INFO L93 Difference]: Finished difference Result 2031 states and 2734 transitions. [2022-01-31 16:17:12,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:12,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 161 [2022-01-31 16:17:12,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:12,568 INFO L225 Difference]: With dead ends: 2031 [2022-01-31 16:17:12,569 INFO L226 Difference]: Without dead ends: 2031 [2022-01-31 16:17:12,570 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 [2022-01-31 16:17:12,570 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 232 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:12,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 218 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2022-01-31 16:17:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2031. [2022-01-31 16:17:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.3474827245804541) internal successors, (2730), 2026 states have internal predecessors, (2730), 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) [2022-01-31 16:17:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2734 transitions. [2022-01-31 16:17:12,601 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2734 transitions. Word has length 161 [2022-01-31 16:17:12,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:12,601 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 2734 transitions. [2022-01-31 16:17:12,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-01-31 16:17:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2734 transitions. [2022-01-31 16:17:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-31 16:17:12,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:12,604 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:12,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:17:12,604 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:12,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:12,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1005440521, now seen corresponding path program 1 times [2022-01-31 16:17:12,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:12,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315146795] [2022-01-31 16:17:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:12,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:12,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-01-31 16:17:12,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:12,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315146795] [2022-01-31 16:17:12,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315146795] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:17:12,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075223987] [2022-01-31 16:17:12,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:12,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:12,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:17:12,650 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) [2022-01-31 16:17:12,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:17:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:12,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 16:17:12,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:17:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-01-31 16:17:13,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:17:13,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075223987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:13,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:17:13,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:17:13,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871319351] [2022-01-31 16:17:13,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:13,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:17:13,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:17:13,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:17:13,078 INFO L87 Difference]: Start difference. First operand 2031 states and 2734 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-01-31 16:17:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:13,110 INFO L93 Difference]: Finished difference Result 2445 states and 3270 transitions. [2022-01-31 16:17:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:17:13,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 189 [2022-01-31 16:17:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:13,116 INFO L225 Difference]: With dead ends: 2445 [2022-01-31 16:17:13,117 INFO L226 Difference]: Without dead ends: 2445 [2022-01-31 16:17:13,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:17:13,117 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 131 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:13,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 574 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:17:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2022-01-31 16:17:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2443. [2022-01-31 16:17:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2438 states have (on average 1.3392124692370795) internal successors, (3265), 2438 states have internal predecessors, (3265), 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) [2022-01-31 16:17:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3269 transitions. [2022-01-31 16:17:13,144 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3269 transitions. Word has length 189 [2022-01-31 16:17:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:13,144 INFO L470 AbstractCegarLoop]: Abstraction has 2443 states and 3269 transitions. [2022-01-31 16:17:13,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-01-31 16:17:13,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3269 transitions. [2022-01-31 16:17:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-31 16:17:13,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:13,147 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:13,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 16:17:13,381 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,SelfDestructingSolverStorable15 [2022-01-31 16:17:13,381 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:13,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash -367874877, now seen corresponding path program 1 times [2022-01-31 16:17:13,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:13,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88095632] [2022-01-31 16:17:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:13,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-01-31 16:17:13,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:13,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88095632] [2022-01-31 16:17:13,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88095632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:13,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:13,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:13,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878260447] [2022-01-31 16:17:13,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:13,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:13,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:13,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:13,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:13,430 INFO L87 Difference]: Start difference. First operand 2443 states and 3269 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:13,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:13,612 INFO L93 Difference]: Finished difference Result 2855 states and 3823 transitions. [2022-01-31 16:17:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:13,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-01-31 16:17:13,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:13,619 INFO L225 Difference]: With dead ends: 2855 [2022-01-31 16:17:13,620 INFO L226 Difference]: Without dead ends: 2855 [2022-01-31 16:17:13,620 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 [2022-01-31 16:17:13,620 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 542 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:13,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 203 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2022-01-31 16:17:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2855. [2022-01-31 16:17:13,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2850 states have (on average 1.34) internal successors, (3819), 2850 states have internal predecessors, (3819), 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) [2022-01-31 16:17:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3823 transitions. [2022-01-31 16:17:13,654 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3823 transitions. Word has length 193 [2022-01-31 16:17:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:13,654 INFO L470 AbstractCegarLoop]: Abstraction has 2855 states and 3823 transitions. [2022-01-31 16:17:13,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3823 transitions. [2022-01-31 16:17:13,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-01-31 16:17:13,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:13,660 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:17:13,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:17:13,660 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:13,660 INFO L85 PathProgramCache]: Analyzing trace with hash -734101191, now seen corresponding path program 1 times [2022-01-31 16:17:13,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:13,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283971176] [2022-01-31 16:17:13,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:13,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-31 16:17:13,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:13,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283971176] [2022-01-31 16:17:13,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283971176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:13,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:13,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:13,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120481006] [2022-01-31 16:17:13,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:13,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:13,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:13,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:13,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:13,702 INFO L87 Difference]: Start difference. First operand 2855 states and 3823 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 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) [2022-01-31 16:17:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:13,908 INFO L93 Difference]: Finished difference Result 2862 states and 3818 transitions. [2022-01-31 16:17:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 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 234 [2022-01-31 16:17:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:13,915 INFO L225 Difference]: With dead ends: 2862 [2022-01-31 16:17:13,915 INFO L226 Difference]: Without dead ends: 2862 [2022-01-31 16:17:13,916 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 [2022-01-31 16:17:13,916 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 243 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:13,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 228 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:13,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2022-01-31 16:17:13,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2855. [2022-01-31 16:17:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2850 states have (on average 1.3357894736842104) internal successors, (3807), 2850 states have internal predecessors, (3807), 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) [2022-01-31 16:17:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3811 transitions. [2022-01-31 16:17:13,947 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3811 transitions. Word has length 234 [2022-01-31 16:17:13,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:13,948 INFO L470 AbstractCegarLoop]: Abstraction has 2855 states and 3811 transitions. [2022-01-31 16:17:13,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 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) [2022-01-31 16:17:13,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3811 transitions. [2022-01-31 16:17:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-01-31 16:17:13,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:13,952 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:13,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:17:13,952 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:13,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash 460801847, now seen corresponding path program 1 times [2022-01-31 16:17:13,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:13,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884451490] [2022-01-31 16:17:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:13,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:14,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-01-31 16:17:14,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884451490] [2022-01-31 16:17:14,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884451490] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:17:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049139556] [2022-01-31 16:17:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:14,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:14,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:17:14,044 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) [2022-01-31 16:17:14,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 16:17:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:14,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:17:14,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:17:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-01-31 16:17:14,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:17:14,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049139556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:14,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:17:14,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:17:14,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398807] [2022-01-31 16:17:14,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:14,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:17:14,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:14,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:17:14,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:17:14,496 INFO L87 Difference]: Start difference. First operand 2855 states and 3811 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2022-01-31 16:17:14,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:14,522 INFO L93 Difference]: Finished difference Result 5213 states and 6947 transitions. [2022-01-31 16:17:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:17:14,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 295 [2022-01-31 16:17:14,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:14,538 INFO L225 Difference]: With dead ends: 5213 [2022-01-31 16:17:14,539 INFO L226 Difference]: Without dead ends: 5213 [2022-01-31 16:17:14,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:17:14,539 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 114 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:14,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 599 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:17:14,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2022-01-31 16:17:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 5211. [2022-01-31 16:17:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5206 states have (on average 1.333461390703035) internal successors, (6942), 5206 states have internal predecessors, (6942), 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) [2022-01-31 16:17:14,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 6946 transitions. [2022-01-31 16:17:14,674 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 6946 transitions. Word has length 295 [2022-01-31 16:17:14,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:14,674 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 6946 transitions. [2022-01-31 16:17:14,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2022-01-31 16:17:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 6946 transitions. [2022-01-31 16:17:14,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-01-31 16:17:14,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:14,682 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:14,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 16:17:14,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:14,897 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:14,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash 741151736, now seen corresponding path program 1 times [2022-01-31 16:17:14,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:14,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864327233] [2022-01-31 16:17:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:14,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-01-31 16:17:14,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:14,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864327233] [2022-01-31 16:17:14,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864327233] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:17:14,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18172141] [2022-01-31 16:17:14,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:14,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:14,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:17:14,956 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) [2022-01-31 16:17:14,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 16:17:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:15,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:17:15,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:17:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-01-31 16:17:15,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:17:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-01-31 16:17:15,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18172141] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:17:15,675 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:17:15,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:17:15,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984881228] [2022-01-31 16:17:15,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:17:15,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:17:15,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:15,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:17:15,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:17:15,676 INFO L87 Difference]: Start difference. First operand 5211 states and 6946 transitions. Second operand has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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) [2022-01-31 16:17:16,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:16,436 INFO L93 Difference]: Finished difference Result 10796 states and 14099 transitions. [2022-01-31 16:17:16,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 16:17:16,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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 295 [2022-01-31 16:17:16,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:16,452 INFO L225 Difference]: With dead ends: 10796 [2022-01-31 16:17:16,452 INFO L226 Difference]: Without dead ends: 10449 [2022-01-31 16:17:16,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-31 16:17:16,453 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 988 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:16,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 355 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 16:17:16,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10449 states. [2022-01-31 16:17:16,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10449 to 5858. [2022-01-31 16:17:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5853 states have (on average 1.340679993165898) internal successors, (7847), 5853 states have internal predecessors, (7847), 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) [2022-01-31 16:17:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 7851 transitions. [2022-01-31 16:17:16,536 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 7851 transitions. Word has length 295 [2022-01-31 16:17:16,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:16,537 INFO L470 AbstractCegarLoop]: Abstraction has 5858 states and 7851 transitions. [2022-01-31 16:17:16,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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) [2022-01-31 16:17:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 7851 transitions. [2022-01-31 16:17:16,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-01-31 16:17:16,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:16,545 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 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, 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] [2022-01-31 16:17:16,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-31 16:17:16,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:16,761 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:16,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1997367070, now seen corresponding path program 1 times [2022-01-31 16:17:16,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:16,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017717143] [2022-01-31 16:17:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:16,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:16,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 691 proven. 16 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-01-31 16:17:16,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:16,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017717143] [2022-01-31 16:17:16,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017717143] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:17:16,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425620040] [2022-01-31 16:17:16,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:16,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:16,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:17:16,832 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) [2022-01-31 16:17:16,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 16:17:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:16,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:17:16,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:17:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 691 proven. 16 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-01-31 16:17:17,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:17:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 691 proven. 16 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-01-31 16:17:17,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425620040] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:17:17,712 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:17:17,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:17:17,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199811347] [2022-01-31 16:17:17,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:17:17,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:17:17,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:17:17,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:17:17,714 INFO L87 Difference]: Start difference. First operand 5858 states and 7851 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 6 states have internal predecessors, (218), 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) [2022-01-31 16:17:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:18,586 INFO L93 Difference]: Finished difference Result 15590 states and 19771 transitions. [2022-01-31 16:17:18,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 16:17:18,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 6 states have internal predecessors, (218), 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 325 [2022-01-31 16:17:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:18,610 INFO L225 Difference]: With dead ends: 15590 [2022-01-31 16:17:18,610 INFO L226 Difference]: Without dead ends: 15590 [2022-01-31 16:17:18,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-31 16:17:18,611 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 790 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:18,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 574 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 16:17:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15590 states. [2022-01-31 16:17:18,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15590 to 8823. [2022-01-31 16:17:18,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8823 states, 8818 states have (on average 1.3168518938534814) internal successors, (11612), 8818 states have internal predecessors, (11612), 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) [2022-01-31 16:17:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8823 states to 8823 states and 11616 transitions. [2022-01-31 16:17:18,740 INFO L78 Accepts]: Start accepts. Automaton has 8823 states and 11616 transitions. Word has length 325 [2022-01-31 16:17:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:18,741 INFO L470 AbstractCegarLoop]: Abstraction has 8823 states and 11616 transitions. [2022-01-31 16:17:18,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 6 states have internal predecessors, (218), 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) [2022-01-31 16:17:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8823 states and 11616 transitions. [2022-01-31 16:17:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-01-31 16:17:18,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:18,751 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:18,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 16:17:18,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:18,966 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:18,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:18,967 INFO L85 PathProgramCache]: Analyzing trace with hash 639516366, now seen corresponding path program 1 times [2022-01-31 16:17:18,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:18,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692950256] [2022-01-31 16:17:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:18,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:19,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 771 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-01-31 16:17:19,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:19,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692950256] [2022-01-31 16:17:19,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692950256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:19,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:19,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:19,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760373836] [2022-01-31 16:17:19,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:19,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:19,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:19,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:19,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:19,018 INFO L87 Difference]: Start difference. First operand 8823 states and 11616 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:19,269 INFO L93 Difference]: Finished difference Result 5640 states and 7260 transitions. [2022-01-31 16:17:19,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:19,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 363 [2022-01-31 16:17:19,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:19,276 INFO L225 Difference]: With dead ends: 5640 [2022-01-31 16:17:19,277 INFO L226 Difference]: Without dead ends: 5010 [2022-01-31 16:17:19,277 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 [2022-01-31 16:17:19,278 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 227 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:19,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 230 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2022-01-31 16:17:19,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 4783. [2022-01-31 16:17:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4778 states have (on average 1.3110087902888237) internal successors, (6264), 4778 states have internal predecessors, (6264), 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) [2022-01-31 16:17:19,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 6268 transitions. [2022-01-31 16:17:19,324 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 6268 transitions. Word has length 363 [2022-01-31 16:17:19,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:19,324 INFO L470 AbstractCegarLoop]: Abstraction has 4783 states and 6268 transitions. [2022-01-31 16:17:19,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 6268 transitions. [2022-01-31 16:17:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-01-31 16:17:19,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:19,332 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:19,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:17:19,332 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:19,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:19,333 INFO L85 PathProgramCache]: Analyzing trace with hash -605306997, now seen corresponding path program 1 times [2022-01-31 16:17:19,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:19,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304723200] [2022-01-31 16:17:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:19,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:19,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 804 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2022-01-31 16:17:19,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:19,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304723200] [2022-01-31 16:17:19,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304723200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:19,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:19,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:19,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454182945] [2022-01-31 16:17:19,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:19,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:19,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:19,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:19,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:19,409 INFO L87 Difference]: Start difference. First operand 4783 states and 6268 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:19,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:19,590 INFO L93 Difference]: Finished difference Result 5395 states and 6965 transitions. [2022-01-31 16:17:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 364 [2022-01-31 16:17:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:19,598 INFO L225 Difference]: With dead ends: 5395 [2022-01-31 16:17:19,598 INFO L226 Difference]: Without dead ends: 5395 [2022-01-31 16:17:19,598 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 [2022-01-31 16:17:19,599 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:19,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:19,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2022-01-31 16:17:19,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 5361. [2022-01-31 16:17:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 5356 states have (on average 1.2933159073935774) internal successors, (6927), 5356 states have internal predecessors, (6927), 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) [2022-01-31 16:17:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 6931 transitions. [2022-01-31 16:17:19,643 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 6931 transitions. Word has length 364 [2022-01-31 16:17:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:19,643 INFO L470 AbstractCegarLoop]: Abstraction has 5361 states and 6931 transitions. [2022-01-31 16:17:19,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:17:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 6931 transitions. [2022-01-31 16:17:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-01-31 16:17:19,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:19,649 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 7, 7, 7, 7, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:19,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:17:19,650 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:19,650 INFO L85 PathProgramCache]: Analyzing trace with hash -532180856, now seen corresponding path program 1 times [2022-01-31 16:17:19,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:19,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093244290] [2022-01-31 16:17:19,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:19,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 943 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-01-31 16:17:19,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:19,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093244290] [2022-01-31 16:17:19,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093244290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:17:19,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:17:19,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:17:19,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569025643] [2022-01-31 16:17:19,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:17:19,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:17:19,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:19,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:17:19,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:17:19,703 INFO L87 Difference]: Start difference. First operand 5361 states and 6931 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 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) [2022-01-31 16:17:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:19,887 INFO L93 Difference]: Finished difference Result 5356 states and 6691 transitions. [2022-01-31 16:17:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:17:19,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 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 395 [2022-01-31 16:17:19,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:19,895 INFO L225 Difference]: With dead ends: 5356 [2022-01-31 16:17:19,895 INFO L226 Difference]: Without dead ends: 5356 [2022-01-31 16:17:19,895 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 [2022-01-31 16:17:19,896 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:19,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:17:19,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2022-01-31 16:17:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 4634. [2022-01-31 16:17:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4634 states, 4629 states have (on average 1.2670123136746598) internal successors, (5865), 4629 states have internal predecessors, (5865), 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) [2022-01-31 16:17:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4634 states to 4634 states and 5869 transitions. [2022-01-31 16:17:19,927 INFO L78 Accepts]: Start accepts. Automaton has 4634 states and 5869 transitions. Word has length 395 [2022-01-31 16:17:19,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:19,927 INFO L470 AbstractCegarLoop]: Abstraction has 4634 states and 5869 transitions. [2022-01-31 16:17:19,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 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) [2022-01-31 16:17:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4634 states and 5869 transitions. [2022-01-31 16:17:19,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-01-31 16:17:19,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:17:19,933 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 8, 8, 8, 8, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:17:19,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:17:19,933 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:17:19,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:17:19,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1679315111, now seen corresponding path program 1 times [2022-01-31 16:17:19,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:17:19,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588700342] [2022-01-31 16:17:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:19,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:17:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:20,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:17:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 518 proven. 22 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-01-31 16:17:20,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:17:20,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588700342] [2022-01-31 16:17:20,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588700342] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:17:20,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831460528] [2022-01-31 16:17:20,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:17:20,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:17:20,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:17:20,006 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) [2022-01-31 16:17:20,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 16:17:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:17:20,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:17:20,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:17:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 518 proven. 22 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-01-31 16:17:20,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:17:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 518 proven. 22 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-01-31 16:17:21,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831460528] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:17:21,112 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:17:21,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-01-31 16:17:21,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353891842] [2022-01-31 16:17:21,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:17:21,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 16:17:21,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:17:21,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 16:17:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:17:21,114 INFO L87 Difference]: Start difference. First operand 4634 states and 5869 transitions. Second operand has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 8 states have internal predecessors, (272), 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) [2022-01-31 16:17:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:17:21,779 INFO L93 Difference]: Finished difference Result 4548 states and 5585 transitions. [2022-01-31 16:17:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:17:21,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 8 states have internal predecessors, (272), 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 428 [2022-01-31 16:17:21,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:17:21,780 INFO L225 Difference]: With dead ends: 4548 [2022-01-31 16:17:21,780 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 16:17:21,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-01-31 16:17:21,781 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 485 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:17:21,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 367 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 16:17:21,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 16:17:21,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 16:17:21,781 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) [2022-01-31 16:17:21,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 16:17:21,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 428 [2022-01-31 16:17:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:17:21,782 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 16:17:21,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 8 states have internal predecessors, (272), 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) [2022-01-31 16:17:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 16:17:21,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 16:17:21,784 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:17:21,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-31 16:17:22,001 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,SelfDestructingSolverStorable24 [2022-01-31 16:17:22,004 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] [2022-01-31 16:17:22,005 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:17:22,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:17:22 BasicIcfg [2022-01-31 16:17:22,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:17:22,007 INFO L158 Benchmark]: Toolchain (without parser) took 14748.25ms. Allocated memory was 222.3MB in the beginning and 536.9MB in the end (delta: 314.6MB). Free memory was 172.7MB in the beginning and 383.8MB in the end (delta: -211.0MB). Peak memory consumption was 104.0MB. Max. memory is 8.0GB. [2022-01-31 16:17:22,007 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 222.3MB. Free memory was 189.4MB in the beginning and 189.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:17:22,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.85ms. Allocated memory is still 222.3MB. Free memory was 172.5MB in the beginning and 194.9MB in the end (delta: -22.4MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-01-31 16:17:22,008 INFO L158 Benchmark]: Boogie Preprocessor took 39.96ms. Allocated memory is still 222.3MB. Free memory was 194.9MB in the beginning and 192.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:17:22,008 INFO L158 Benchmark]: RCFGBuilder took 519.72ms. Allocated memory is still 222.3MB. Free memory was 192.3MB in the beginning and 164.0MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-01-31 16:17:22,008 INFO L158 Benchmark]: IcfgTransformer took 25.58ms. Allocated memory is still 222.3MB. Free memory was 164.0MB in the beginning and 160.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 16:17:22,008 INFO L158 Benchmark]: TraceAbstraction took 13856.98ms. Allocated memory was 222.3MB in the beginning and 536.9MB in the end (delta: 314.6MB). Free memory was 160.3MB in the beginning and 383.8MB in the end (delta: -223.4MB). Peak memory consumption was 91.8MB. Max. memory is 8.0GB. [2022-01-31 16:17:22,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 222.3MB. Free memory was 189.4MB in the beginning and 189.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 300.85ms. Allocated memory is still 222.3MB. Free memory was 172.5MB in the beginning and 194.9MB in the end (delta: -22.4MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.96ms. Allocated memory is still 222.3MB. Free memory was 194.9MB in the beginning and 192.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 519.72ms. Allocated memory is still 222.3MB. Free memory was 192.3MB in the beginning and 164.0MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * IcfgTransformer took 25.58ms. Allocated memory is still 222.3MB. Free memory was 164.0MB in the beginning and 160.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 13856.98ms. Allocated memory was 222.3MB in the beginning and 536.9MB in the end (delta: 314.6MB). Free memory was 160.3MB in the beginning and 383.8MB in the end (delta: -223.4MB). Peak memory consumption was 91.8MB. 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: 635]: 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, 155 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 25, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9048 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9046 mSDsluCounter, 7321 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 584 mSDsCounter, 703 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8009 IncrementalHoareTripleChecker+Invalid, 8712 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 703 mSolverCounterUnsat, 6737 mSDtfsCounter, 8009 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2786 GetRequests, 2680 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8823occurred in iteration=21, InterpolantAutomatonStates: 116, 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, 25 MinimizatonAttempts, 13127 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 6249 NumberOfCodeBlocks, 6249 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 7264 ConstructedInterpolants, 0 QuantifiedInterpolants, 10795 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3021 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 33 InterpolantComputations, 22 PerfectInterpolantSequences, 19925/20169 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! [2022-01-31 16:17:22,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...