/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_8.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:45:12,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:45:12,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:45:12,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:45:12,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:45:12,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:45:12,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:45:12,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:45:12,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:45:12,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:45:12,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:45:12,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:45:12,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:45:12,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:45:12,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:45:12,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:45:12,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:45:12,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:45:12,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:45:12,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:45:12,981 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:45:12,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:45:12,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:45:12,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:45:12,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:45:12,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:45:12,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:45:12,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:45:12,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:45:12,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:45:12,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:45:12,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:45:12,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:45:12,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:45:12,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:45:12,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:45:12,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:45:12,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:45:12,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:45:12,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:45:12,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:45:12,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:45:13,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:45:13,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:45:13,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:45:13,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:45:13,014 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:45:13,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:45:13,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:45:13,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:45:13,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:45:13,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:45:13,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:45:13,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:45:13,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:45:13,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:45:13,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:45:13,017 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:45:13,018 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:45:13,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:45:13,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:45:13,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:45:13,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:45:13,282 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:45:13,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c [2022-03-17 18:45:13,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e26194af/b05925da61644f07a20a0cdf635e0f5d/FLAG42603f8ff [2022-03-17 18:45:13,787 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:45:13,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c [2022-03-17 18:45:13,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e26194af/b05925da61644f07a20a0cdf635e0f5d/FLAG42603f8ff [2022-03-17 18:45:14,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e26194af/b05925da61644f07a20a0cdf635e0f5d [2022-03-17 18:45:14,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:45:14,166 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:45:14,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:45:14,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:45:14,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:45:14,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b683708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14, skipping insertion in model container [2022-03-17 18:45:14,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:45:14,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:45:14,392 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_8.cil.c[44970,44983] [2022-03-17 18:45:14,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:45:14,404 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:45:14,444 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_8.cil.c[44970,44983] [2022-03-17 18:45:14,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:45:14,463 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:45:14,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14 WrapperNode [2022-03-17 18:45:14,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:45:14,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:45:14,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:45:14,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:45:14,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:45:14,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:45:14,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:45:14,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:45:14,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (1/1) ... [2022-03-17 18:45:14,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:45:14,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:14,540 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) [2022-03-17 18:45:14,544 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 [2022-03-17 18:45:14,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:45:14,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:45:14,584 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:45:14,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:45:14,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:45:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:45:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:45:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:45:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:45:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:45:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:45:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:45:14,714 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:45:14,716 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:45:14,800 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:45:15,216 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-03-17 18:45:15,217 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-03-17 18:45:15,222 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:45:15,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:45:15,229 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:45:15,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:15 BoogieIcfgContainer [2022-03-17 18:45:15,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:45:15,231 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:45:15,231 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:45:15,234 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:45:15,237 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:15" (1/1) ... [2022-03-17 18:45:15,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:45:15 BasicIcfg [2022-03-17 18:45:15,263 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:45:15,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:45:15,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:45:15,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:45:15,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:45:14" (1/4) ... [2022-03-17 18:45:15,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e54aea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:45:15, skipping insertion in model container [2022-03-17 18:45:15,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:14" (2/4) ... [2022-03-17 18:45:15,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e54aea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:45:15, skipping insertion in model container [2022-03-17 18:45:15,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:15" (3/4) ... [2022-03-17 18:45:15,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e54aea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:45:15, skipping insertion in model container [2022-03-17 18:45:15,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:45:15" (4/4) ... [2022-03-17 18:45:15,269 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_8.cil.cJordan [2022-03-17 18:45:15,273 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:45:15,273 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:45:15,307 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:45:15,312 INFO L340 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 [2022-03-17 18:45:15,312 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:45:15,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.722972972972973) internal successors, (255), 149 states have internal predecessors, (255), 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) [2022-03-17 18:45:15,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-17 18:45:15,336 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:15,337 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:15,337 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:15,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:15,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1186597234, now seen corresponding path program 1 times [2022-03-17 18:45:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:15,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609651214] [2022-03-17 18:45:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:45:15,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:15,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609651214] [2022-03-17 18:45:15,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609651214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:15,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:15,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:15,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960283325] [2022-03-17 18:45:15,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:15,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:15,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:15,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:15,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:15,744 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.722972972972973) internal successors, (255), 149 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,133 INFO L93 Difference]: Finished difference Result 290 states and 479 transitions. [2022-03-17 18:45:16,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:16,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-17 18:45:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,144 INFO L225 Difference]: With dead ends: 290 [2022-03-17 18:45:16,145 INFO L226 Difference]: Without dead ends: 263 [2022-03-17 18:45:16,146 INFO L911 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 [2022-03-17 18:45:16,152 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 660 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,153 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 255 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:16,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-03-17 18:45:16,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-03-17 18:45:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.5232558139534884) internal successors, (393), 258 states have internal predecessors, (393), 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) [2022-03-17 18:45:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 397 transitions. [2022-03-17 18:45:16,223 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 397 transitions. Word has length 48 [2022-03-17 18:45:16,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,224 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 397 transitions. [2022-03-17 18:45:16,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,225 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 397 transitions. [2022-03-17 18:45:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 18:45:16,231 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,232 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:16,232 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:45:16,232 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 784259584, now seen corresponding path program 1 times [2022-03-17 18:45:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070808531] [2022-03-17 18:45:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:45:16,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070808531] [2022-03-17 18:45:16,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070808531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:16,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978249671] [2022-03-17 18:45:16,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,361 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:16,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:16,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:16,362 INFO L87 Difference]: Start difference. First operand 263 states and 397 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-03-17 18:45:16,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,619 INFO L93 Difference]: Finished difference Result 292 states and 434 transitions. [2022-03-17 18:45:16,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:16,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 64 [2022-03-17 18:45:16,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,621 INFO L225 Difference]: With dead ends: 292 [2022-03-17 18:45:16,622 INFO L226 Difference]: Without dead ends: 292 [2022-03-17 18:45:16,622 INFO L911 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 [2022-03-17 18:45:16,623 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 227 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,624 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 232 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:16,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-17 18:45:16,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 284. [2022-03-17 18:45:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 279 states have (on average 1.5017921146953406) internal successors, (419), 279 states have internal predecessors, (419), 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) [2022-03-17 18:45:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 423 transitions. [2022-03-17 18:45:16,633 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 423 transitions. Word has length 64 [2022-03-17 18:45:16,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,634 INFO L478 AbstractCegarLoop]: Abstraction has 284 states and 423 transitions. [2022-03-17 18:45:16,634 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-03-17 18:45:16,634 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 423 transitions. [2022-03-17 18:45:16,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 18:45:16,636 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,636 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:16,636 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:45:16,637 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1949677792, now seen corresponding path program 1 times [2022-03-17 18:45:16,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501850665] [2022-03-17 18:45:16,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:45:16,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501850665] [2022-03-17 18:45:16,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501850665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:16,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966874868] [2022-03-17 18:45:16,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:16,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:16,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:16,733 INFO L87 Difference]: Start difference. First operand 284 states and 423 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-03-17 18:45:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,004 INFO L93 Difference]: Finished difference Result 394 states and 561 transitions. [2022-03-17 18:45:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:17,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 85 [2022-03-17 18:45:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,008 INFO L225 Difference]: With dead ends: 394 [2022-03-17 18:45:17,008 INFO L226 Difference]: Without dead ends: 394 [2022-03-17 18:45:17,009 INFO L911 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 [2022-03-17 18:45:17,014 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 264 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,016 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 231 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:17,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-03-17 18:45:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 366. [2022-03-17 18:45:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 361 states have (on average 1.4321329639889198) internal successors, (517), 361 states have internal predecessors, (517), 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) [2022-03-17 18:45:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 521 transitions. [2022-03-17 18:45:17,029 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 521 transitions. Word has length 85 [2022-03-17 18:45:17,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,030 INFO L478 AbstractCegarLoop]: Abstraction has 366 states and 521 transitions. [2022-03-17 18:45:17,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-03-17 18:45:17,030 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 521 transitions. [2022-03-17 18:45:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 18:45:17,031 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,031 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:17,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:45:17,032 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash -883709505, now seen corresponding path program 1 times [2022-03-17 18:45:17,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191568481] [2022-03-17 18:45:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:45:17,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191568481] [2022-03-17 18:45:17,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191568481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:17,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877360909] [2022-03-17 18:45:17,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:17,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:17,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:17,096 INFO L87 Difference]: Start difference. First operand 366 states and 521 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-03-17 18:45:17,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,346 INFO L93 Difference]: Finished difference Result 420 states and 587 transitions. [2022-03-17 18:45:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:17,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 85 [2022-03-17 18:45:17,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,349 INFO L225 Difference]: With dead ends: 420 [2022-03-17 18:45:17,349 INFO L226 Difference]: Without dead ends: 420 [2022-03-17 18:45:17,350 INFO L911 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 [2022-03-17 18:45:17,350 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 226 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,351 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 233 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-17 18:45:17,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 412. [2022-03-17 18:45:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 407 states have (on average 1.4078624078624078) internal successors, (573), 407 states have internal predecessors, (573), 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) [2022-03-17 18:45:17,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 577 transitions. [2022-03-17 18:45:17,359 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 577 transitions. Word has length 85 [2022-03-17 18:45:17,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,360 INFO L478 AbstractCegarLoop]: Abstraction has 412 states and 577 transitions. [2022-03-17 18:45:17,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-03-17 18:45:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 577 transitions. [2022-03-17 18:45:17,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-17 18:45:17,362 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,362 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:17,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:45:17,362 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,363 INFO L85 PathProgramCache]: Analyzing trace with hash 779145481, now seen corresponding path program 1 times [2022-03-17 18:45:17,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566576939] [2022-03-17 18:45:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:45:17,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566576939] [2022-03-17 18:45:17,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566576939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:17,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502484348] [2022-03-17 18:45:17,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:17,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:17,469 INFO L87 Difference]: Start difference. First operand 412 states and 577 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-03-17 18:45:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,675 INFO L93 Difference]: Finished difference Result 608 states and 854 transitions. [2022-03-17 18:45:17,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:17,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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 98 [2022-03-17 18:45:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,678 INFO L225 Difference]: With dead ends: 608 [2022-03-17 18:45:17,678 INFO L226 Difference]: Without dead ends: 602 [2022-03-17 18:45:17,679 INFO L911 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 [2022-03-17 18:45:17,679 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,680 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 231 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-03-17 18:45:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 588. [2022-03-17 18:45:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 583 states have (on average 1.41852487135506) internal successors, (827), 583 states have internal predecessors, (827), 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) [2022-03-17 18:45:17,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 831 transitions. [2022-03-17 18:45:17,690 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 831 transitions. Word has length 98 [2022-03-17 18:45:17,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,690 INFO L478 AbstractCegarLoop]: Abstraction has 588 states and 831 transitions. [2022-03-17 18:45:17,691 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-03-17 18:45:17,691 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 831 transitions. [2022-03-17 18:45:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-17 18:45:17,692 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,692 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:17,692 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:45:17,693 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1541749664, now seen corresponding path program 1 times [2022-03-17 18:45:17,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981810947] [2022-03-17 18:45:17,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:45:17,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981810947] [2022-03-17 18:45:17,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981810947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:17,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691945221] [2022-03-17 18:45:17,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:17,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:17,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:17,742 INFO L87 Difference]: Start difference. First operand 588 states and 831 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) [2022-03-17 18:45:18,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,007 INFO L93 Difference]: Finished difference Result 664 states and 933 transitions. [2022-03-17 18:45:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:18,007 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 106 [2022-03-17 18:45:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,010 INFO L225 Difference]: With dead ends: 664 [2022-03-17 18:45:18,010 INFO L226 Difference]: Without dead ends: 664 [2022-03-17 18:45:18,010 INFO L911 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 [2022-03-17 18:45:18,011 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 258 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,011 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 232 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-03-17 18:45:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 638. [2022-03-17 18:45:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.401263823064771) internal successors, (887), 633 states have internal predecessors, (887), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 891 transitions. [2022-03-17 18:45:18,023 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 891 transitions. Word has length 106 [2022-03-17 18:45:18,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,024 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 891 transitions. [2022-03-17 18:45:18,024 INFO L479 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) [2022-03-17 18:45:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 891 transitions. [2022-03-17 18:45:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 18:45:18,025 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,026 INFO L500 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] [2022-03-17 18:45:18,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:45:18,026 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1480032937, now seen corresponding path program 1 times [2022-03-17 18:45:18,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151468737] [2022-03-17 18:45:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-03-17 18:45:18,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:18,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151468737] [2022-03-17 18:45:18,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151468737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:18,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:18,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:18,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907067841] [2022-03-17 18:45:18,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:18,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:18,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:18,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:18,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:18,078 INFO L87 Difference]: Start difference. First operand 638 states and 891 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) [2022-03-17 18:45:18,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,334 INFO L93 Difference]: Finished difference Result 708 states and 981 transitions. [2022-03-17 18:45:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:18,334 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 [2022-03-17 18:45:18,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,337 INFO L225 Difference]: With dead ends: 708 [2022-03-17 18:45:18,337 INFO L226 Difference]: Without dead ends: 708 [2022-03-17 18:45:18,337 INFO L911 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 [2022-03-17 18:45:18,338 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 239 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,338 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 232 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:18,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2022-03-17 18:45:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 692. [2022-03-17 18:45:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.3842794759825328) internal successors, (951), 687 states have internal predecessors, (951), 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) [2022-03-17 18:45:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 955 transitions. [2022-03-17 18:45:18,351 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 955 transitions. Word has length 132 [2022-03-17 18:45:18,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,351 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 955 transitions. [2022-03-17 18:45:18,351 INFO L479 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) [2022-03-17 18:45:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 955 transitions. [2022-03-17 18:45:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-17 18:45:18,353 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,353 INFO L500 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, 1, 1] [2022-03-17 18:45:18,353 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:45:18,353 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash -731592814, now seen corresponding path program 1 times [2022-03-17 18:45:18,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432900373] [2022-03-17 18:45:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:45:18,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:18,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432900373] [2022-03-17 18:45:18,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432900373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:18,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:18,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:18,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208998594] [2022-03-17 18:45:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:18,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:18,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:18,429 INFO L87 Difference]: Start difference. First operand 692 states and 955 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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) [2022-03-17 18:45:18,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,621 INFO L93 Difference]: Finished difference Result 712 states and 976 transitions. [2022-03-17 18:45:18,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:18,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 138 [2022-03-17 18:45:18,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,624 INFO L225 Difference]: With dead ends: 712 [2022-03-17 18:45:18,624 INFO L226 Difference]: Without dead ends: 710 [2022-03-17 18:45:18,625 INFO L911 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 [2022-03-17 18:45:18,625 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 359 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,625 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 231 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-03-17 18:45:18,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 698. [2022-03-17 18:45:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 693 states have (on average 1.378066378066378) internal successors, (955), 693 states have internal predecessors, (955), 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) [2022-03-17 18:45:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 959 transitions. [2022-03-17 18:45:18,637 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 959 transitions. Word has length 138 [2022-03-17 18:45:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,638 INFO L478 AbstractCegarLoop]: Abstraction has 698 states and 959 transitions. [2022-03-17 18:45:18,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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) [2022-03-17 18:45:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 959 transitions. [2022-03-17 18:45:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 18:45:18,639 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,640 INFO L500 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] [2022-03-17 18:45:18,640 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:45:18,640 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,641 INFO L85 PathProgramCache]: Analyzing trace with hash -538858338, now seen corresponding path program 1 times [2022-03-17 18:45:18,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616456168] [2022-03-17 18:45:18,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-17 18:45:18,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:18,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616456168] [2022-03-17 18:45:18,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616456168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:18,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:18,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:18,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245563705] [2022-03-17 18:45:18,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:18,702 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:18,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:18,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:18,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:18,703 INFO L87 Difference]: Start difference. First operand 698 states and 959 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) [2022-03-17 18:45:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,942 INFO L93 Difference]: Finished difference Result 760 states and 1031 transitions. [2022-03-17 18:45:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:18,943 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 [2022-03-17 18:45:18,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,945 INFO L225 Difference]: With dead ends: 760 [2022-03-17 18:45:18,945 INFO L226 Difference]: Without dead ends: 760 [2022-03-17 18:45:18,946 INFO L911 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 [2022-03-17 18:45:18,946 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 220 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,946 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 232 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:18,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-03-17 18:45:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 756. [2022-03-17 18:45:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 751 states have (on average 1.3621837549933422) internal successors, (1023), 751 states have internal predecessors, (1023), 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) [2022-03-17 18:45:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1027 transitions. [2022-03-17 18:45:18,959 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1027 transitions. Word has length 155 [2022-03-17 18:45:18,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,959 INFO L478 AbstractCegarLoop]: Abstraction has 756 states and 1027 transitions. [2022-03-17 18:45:18,959 INFO L479 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) [2022-03-17 18:45:18,959 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1027 transitions. [2022-03-17 18:45:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-17 18:45:18,961 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,962 INFO L500 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] [2022-03-17 18:45:18,962 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:45:18,962 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,962 INFO L85 PathProgramCache]: Analyzing trace with hash -647558084, now seen corresponding path program 1 times [2022-03-17 18:45:18,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503845933] [2022-03-17 18:45:18,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-17 18:45:19,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503845933] [2022-03-17 18:45:19,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503845933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:19,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:19,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:19,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339906642] [2022-03-17 18:45:19,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:19,010 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:19,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:19,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:19,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:19,011 INFO L87 Difference]: Start difference. First operand 756 states and 1027 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-03-17 18:45:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:19,249 INFO L93 Difference]: Finished difference Result 818 states and 1099 transitions. [2022-03-17 18:45:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:19,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 160 [2022-03-17 18:45:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:19,252 INFO L225 Difference]: With dead ends: 818 [2022-03-17 18:45:19,252 INFO L226 Difference]: Without dead ends: 818 [2022-03-17 18:45:19,252 INFO L911 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 [2022-03-17 18:45:19,253 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 234 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:19,254 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 220 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:19,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-03-17 18:45:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2022-03-17 18:45:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 813 states have (on average 1.3468634686346863) internal successors, (1095), 813 states have internal predecessors, (1095), 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) [2022-03-17 18:45:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1099 transitions. [2022-03-17 18:45:19,269 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1099 transitions. Word has length 160 [2022-03-17 18:45:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:19,269 INFO L478 AbstractCegarLoop]: Abstraction has 818 states and 1099 transitions. [2022-03-17 18:45:19,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-03-17 18:45:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1099 transitions. [2022-03-17 18:45:19,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-17 18:45:19,272 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:19,272 INFO L500 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] [2022-03-17 18:45:19,273 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:45:19,273 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:19,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1149825200, now seen corresponding path program 1 times [2022-03-17 18:45:19,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:19,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77516357] [2022-03-17 18:45:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,348 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-17 18:45:19,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77516357] [2022-03-17 18:45:19,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77516357] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:19,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387213052] [2022-03-17 18:45:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:19,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:19,356 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) [2022-03-17 18:45:19,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 18:45:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:19,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-03-17 18:45:19,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:19,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387213052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:19,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:19,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:19,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561517685] [2022-03-17 18:45:19,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:19,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:19,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:19,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:19,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:19,936 INFO L87 Difference]: Start difference. First operand 818 states and 1099 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-03-17 18:45:19,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:19,977 INFO L93 Difference]: Finished difference Result 1230 states and 1650 transitions. [2022-03-17 18:45:19,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:19,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 188 [2022-03-17 18:45:19,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:19,982 INFO L225 Difference]: With dead ends: 1230 [2022-03-17 18:45:19,982 INFO L226 Difference]: Without dead ends: 1230 [2022-03-17 18:45:19,982 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:19,983 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 134 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:19,983 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 381 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 18:45:19,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-03-17 18:45:19,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2022-03-17 18:45:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1225 states have (on average 1.343673469387755) internal successors, (1646), 1225 states have internal predecessors, (1646), 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) [2022-03-17 18:45:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1650 transitions. [2022-03-17 18:45:20,003 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1650 transitions. Word has length 188 [2022-03-17 18:45:20,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,003 INFO L478 AbstractCegarLoop]: Abstraction has 1230 states and 1650 transitions. [2022-03-17 18:45:20,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-03-17 18:45:20,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1650 transitions. [2022-03-17 18:45:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-17 18:45:20,006 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,006 INFO L500 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, 1, 1] [2022-03-17 18:45:20,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:20,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-17 18:45:20,232 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1556839531, now seen corresponding path program 1 times [2022-03-17 18:45:20,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304628909] [2022-03-17 18:45:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-17 18:45:20,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304628909] [2022-03-17 18:45:20,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304628909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:20,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:20,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376202638] [2022-03-17 18:45:20,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:20,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:20,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:20,294 INFO L87 Difference]: Start difference. First operand 1230 states and 1650 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) [2022-03-17 18:45:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:20,492 INFO L93 Difference]: Finished difference Result 1636 states and 2191 transitions. [2022-03-17 18:45:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:20,493 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 195 [2022-03-17 18:45:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:20,498 INFO L225 Difference]: With dead ends: 1636 [2022-03-17 18:45:20,498 INFO L226 Difference]: Without dead ends: 1636 [2022-03-17 18:45:20,498 INFO L911 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 [2022-03-17 18:45:20,499 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 345 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:20,499 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 389 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-03-17 18:45:20,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1636. [2022-03-17 18:45:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1631 states have (on average 1.3408951563458) internal successors, (2187), 1631 states have internal predecessors, (2187), 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) [2022-03-17 18:45:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2191 transitions. [2022-03-17 18:45:20,526 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2191 transitions. Word has length 195 [2022-03-17 18:45:20,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,526 INFO L478 AbstractCegarLoop]: Abstraction has 1636 states and 2191 transitions. [2022-03-17 18:45:20,527 INFO L479 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) [2022-03-17 18:45:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2191 transitions. [2022-03-17 18:45:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-17 18:45:20,530 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,530 INFO L500 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, 1, 1, 1] [2022-03-17 18:45:20,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:45:20,531 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1120597249, now seen corresponding path program 1 times [2022-03-17 18:45:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674412507] [2022-03-17 18:45:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-03-17 18:45:20,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674412507] [2022-03-17 18:45:20,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674412507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:20,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:20,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732733177] [2022-03-17 18:45:20,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,583 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:20,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:20,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:20,583 INFO L87 Difference]: Start difference. First operand 1636 states and 2191 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:20,768 INFO L93 Difference]: Finished difference Result 1687 states and 2249 transitions. [2022-03-17 18:45:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:20,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-17 18:45:20,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:20,774 INFO L225 Difference]: With dead ends: 1687 [2022-03-17 18:45:20,774 INFO L226 Difference]: Without dead ends: 1687 [2022-03-17 18:45:20,774 INFO L911 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 [2022-03-17 18:45:20,775 INFO L912 BasicCegarLoop]: 267 mSDtfsCounter, 225 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:20,775 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 274 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:20,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-03-17 18:45:20,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-03-17 18:45:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1682 states have (on average 1.334720570749108) internal successors, (2245), 1682 states have internal predecessors, (2245), 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) [2022-03-17 18:45:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2249 transitions. [2022-03-17 18:45:20,844 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2249 transitions. Word has length 196 [2022-03-17 18:45:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,845 INFO L478 AbstractCegarLoop]: Abstraction has 1687 states and 2249 transitions. [2022-03-17 18:45:20,845 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2249 transitions. [2022-03-17 18:45:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-17 18:45:20,849 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,849 INFO L500 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:20,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:45:20,850 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,850 INFO L85 PathProgramCache]: Analyzing trace with hash 37095226, now seen corresponding path program 1 times [2022-03-17 18:45:20,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872477282] [2022-03-17 18:45:20,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-03-17 18:45:20,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872477282] [2022-03-17 18:45:20,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872477282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:20,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:20,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970842469] [2022-03-17 18:45:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:20,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:20,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:20,929 INFO L87 Difference]: Start difference. First operand 1687 states and 2249 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:21,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:21,164 INFO L93 Difference]: Finished difference Result 1847 states and 2425 transitions. [2022-03-17 18:45:21,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:21,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2022-03-17 18:45:21,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:21,171 INFO L225 Difference]: With dead ends: 1847 [2022-03-17 18:45:21,171 INFO L226 Difference]: Without dead ends: 1680 [2022-03-17 18:45:21,171 INFO L911 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 [2022-03-17 18:45:21,172 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 220 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:21,172 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 232 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:21,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2022-03-17 18:45:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1680. [2022-03-17 18:45:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1675 states have (on average 1.3295522388059702) internal successors, (2227), 1675 states have internal predecessors, (2227), 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) [2022-03-17 18:45:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2231 transitions. [2022-03-17 18:45:21,208 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2231 transitions. Word has length 233 [2022-03-17 18:45:21,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:21,208 INFO L478 AbstractCegarLoop]: Abstraction has 1680 states and 2231 transitions. [2022-03-17 18:45:21,209 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2231 transitions. [2022-03-17 18:45:21,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-03-17 18:45:21,215 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:21,215 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:21,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:45:21,215 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1753718484, now seen corresponding path program 1 times [2022-03-17 18:45:21,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:21,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198018580] [2022-03-17 18:45:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 719 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-03-17 18:45:21,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:21,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198018580] [2022-03-17 18:45:21,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198018580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:21,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:21,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:21,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400824427] [2022-03-17 18:45:21,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:21,288 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:21,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:21,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:21,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:21,288 INFO L87 Difference]: Start difference. First operand 1680 states and 2231 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-03-17 18:45:21,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:21,480 INFO L93 Difference]: Finished difference Result 3204 states and 4266 transitions. [2022-03-17 18:45:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:21,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 345 [2022-03-17 18:45:21,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:21,488 INFO L225 Difference]: With dead ends: 3204 [2022-03-17 18:45:21,488 INFO L226 Difference]: Without dead ends: 2022 [2022-03-17 18:45:21,489 INFO L911 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 [2022-03-17 18:45:21,490 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 345 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:21,491 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 397 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:21,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-03-17 18:45:21,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2020. [2022-03-17 18:45:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 2015 states have (on average 1.3330024813895782) internal successors, (2686), 2015 states have internal predecessors, (2686), 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) [2022-03-17 18:45:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2690 transitions. [2022-03-17 18:45:21,526 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2690 transitions. Word has length 345 [2022-03-17 18:45:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:21,527 INFO L478 AbstractCegarLoop]: Abstraction has 2020 states and 2690 transitions. [2022-03-17 18:45:21,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-03-17 18:45:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2690 transitions. [2022-03-17 18:45:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-03-17 18:45:21,536 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:21,537 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:21,537 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:45:21,537 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:21,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:21,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1560614213, now seen corresponding path program 1 times [2022-03-17 18:45:21,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:21,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680587914] [2022-03-17 18:45:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1192 proven. 26 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-03-17 18:45:21,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:21,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680587914] [2022-03-17 18:45:21,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680587914] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:21,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811945882] [2022-03-17 18:45:21,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:21,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:21,622 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) [2022-03-17 18:45:21,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 18:45:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:21,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 582 proven. 0 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2022-03-17 18:45:22,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:22,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811945882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:22,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:22,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:22,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332124337] [2022-03-17 18:45:22,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:22,446 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:22,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:22,447 INFO L87 Difference]: Start difference. First operand 2020 states and 2690 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2022-03-17 18:45:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:22,496 INFO L93 Difference]: Finished difference Result 2812 states and 3750 transitions. [2022-03-17 18:45:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:22,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 448 [2022-03-17 18:45:22,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:22,505 INFO L225 Difference]: With dead ends: 2812 [2022-03-17 18:45:22,505 INFO L226 Difference]: Without dead ends: 2429 [2022-03-17 18:45:22,505 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:22,506 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 149 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:22,506 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 370 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 18:45:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2022-03-17 18:45:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2429. [2022-03-17 18:45:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2424 states have (on average 1.3333333333333333) internal successors, (3232), 2424 states have internal predecessors, (3232), 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) [2022-03-17 18:45:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3236 transitions. [2022-03-17 18:45:22,546 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3236 transitions. Word has length 448 [2022-03-17 18:45:22,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:22,547 INFO L478 AbstractCegarLoop]: Abstraction has 2429 states and 3236 transitions. [2022-03-17 18:45:22,547 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2022-03-17 18:45:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3236 transitions. [2022-03-17 18:45:22,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-03-17 18:45:22,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:22,560 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 18:45:22,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:22,781 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-17 18:45:22,782 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:22,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:22,782 INFO L85 PathProgramCache]: Analyzing trace with hash 168081285, now seen corresponding path program 1 times [2022-03-17 18:45:22,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:22,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638175148] [2022-03-17 18:45:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:22,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-03-17 18:45:22,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:22,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638175148] [2022-03-17 18:45:22,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638175148] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:22,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685008824] [2022-03-17 18:45:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:22,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:22,888 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) [2022-03-17 18:45:22,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 18:45:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:23,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1179 proven. 0 refuted. 0 times theorem prover too weak. 2470 trivial. 0 not checked. [2022-03-17 18:45:23,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:23,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685008824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:23,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:23,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:23,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835160775] [2022-03-17 18:45:23,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:23,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:23,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:23,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:23,802 INFO L87 Difference]: Start difference. First operand 2429 states and 3236 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-03-17 18:45:23,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:23,847 INFO L93 Difference]: Finished difference Result 3221 states and 4298 transitions. [2022-03-17 18:45:23,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:23,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 601 [2022-03-17 18:45:23,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:23,859 INFO L225 Difference]: With dead ends: 3221 [2022-03-17 18:45:23,859 INFO L226 Difference]: Without dead ends: 3217 [2022-03-17 18:45:23,859 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:23,860 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 138 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:23,860 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 368 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 18:45:23,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2022-03-17 18:45:23,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3215. [2022-03-17 18:45:23,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 3210 states have (on average 1.3348909657320873) internal successors, (4285), 3210 states have internal predecessors, (4285), 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) [2022-03-17 18:45:23,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 4289 transitions. [2022-03-17 18:45:23,912 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 4289 transitions. Word has length 601 [2022-03-17 18:45:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:23,913 INFO L478 AbstractCegarLoop]: Abstraction has 3215 states and 4289 transitions. [2022-03-17 18:45:23,913 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-03-17 18:45:23,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 4289 transitions. [2022-03-17 18:45:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-03-17 18:45:23,927 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:23,928 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 18:45:23,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:24,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:24,142 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash -786147610, now seen corresponding path program 1 times [2022-03-17 18:45:24,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:24,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941445681] [2022-03-17 18:45:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:24,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:24,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-03-17 18:45:24,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:24,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941445681] [2022-03-17 18:45:24,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941445681] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:24,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326648747] [2022-03-17 18:45:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:24,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:24,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:24,245 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) [2022-03-17 18:45:24,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 18:45:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:24,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:24,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:25,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1193 proven. 0 refuted. 0 times theorem prover too weak. 2456 trivial. 0 not checked. [2022-03-17 18:45:25,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:25,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326648747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:25,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:25,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:25,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23956252] [2022-03-17 18:45:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:25,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:25,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:25,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:25,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:25,417 INFO L87 Difference]: Start difference. First operand 3215 states and 4289 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2022-03-17 18:45:25,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:25,440 INFO L93 Difference]: Finished difference Result 2803 states and 3743 transitions. [2022-03-17 18:45:25,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:25,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 601 [2022-03-17 18:45:25,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:25,449 INFO L225 Difference]: With dead ends: 2803 [2022-03-17 18:45:25,450 INFO L226 Difference]: Without dead ends: 2803 [2022-03-17 18:45:25,450 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:25,450 INFO L912 BasicCegarLoop]: 383 mSDtfsCounter, 104 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:25,451 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 574 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 18:45:25,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-03-17 18:45:25,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2455. [2022-03-17 18:45:25,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2450 states have (on average 1.3342857142857143) internal successors, (3269), 2450 states have internal predecessors, (3269), 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) [2022-03-17 18:45:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3273 transitions. [2022-03-17 18:45:25,486 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3273 transitions. Word has length 601 [2022-03-17 18:45:25,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:25,487 INFO L478 AbstractCegarLoop]: Abstraction has 2455 states and 3273 transitions. [2022-03-17 18:45:25,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2022-03-17 18:45:25,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3273 transitions. [2022-03-17 18:45:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-03-17 18:45:25,494 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:25,494 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:25,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:25,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-17 18:45:25,707 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:25,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:25,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1838306117, now seen corresponding path program 1 times [2022-03-17 18:45:25,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:25,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097522966] [2022-03-17 18:45:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:25,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-03-17 18:45:25,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:25,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097522966] [2022-03-17 18:45:25,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097522966] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:25,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889974875] [2022-03-17 18:45:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:25,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:25,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:25,802 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) [2022-03-17 18:45:25,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 18:45:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:25,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-03-17 18:45:26,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:45:27,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-03-17 18:45:27,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889974875] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:45:27,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:45:27,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-03-17 18:45:27,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382790789] [2022-03-17 18:45:27,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:45:27,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:45:27,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:27,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:45:27,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:45:27,692 INFO L87 Difference]: Start difference. First operand 2455 states and 3273 transitions. Second operand has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 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) [2022-03-17 18:45:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:28,321 INFO L93 Difference]: Finished difference Result 3170 states and 4201 transitions. [2022-03-17 18:45:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:45:28,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 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 601 [2022-03-17 18:45:28,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:28,331 INFO L225 Difference]: With dead ends: 3170 [2022-03-17 18:45:28,331 INFO L226 Difference]: Without dead ends: 3041 [2022-03-17 18:45:28,332 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1217 GetRequests, 1207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:45:28,332 INFO L912 BasicCegarLoop]: 317 mSDtfsCounter, 764 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:28,332 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [764 Valid, 334 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-17 18:45:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-03-17 18:45:28,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2418. [2022-03-17 18:45:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2413 states have (on average 1.3315375051802736) internal successors, (3213), 2413 states have internal predecessors, (3213), 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) [2022-03-17 18:45:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3217 transitions. [2022-03-17 18:45:28,369 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3217 transitions. Word has length 601 [2022-03-17 18:45:28,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:28,369 INFO L478 AbstractCegarLoop]: Abstraction has 2418 states and 3217 transitions. [2022-03-17 18:45:28,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 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) [2022-03-17 18:45:28,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3217 transitions. [2022-03-17 18:45:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2022-03-17 18:45:28,378 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:28,378 INFO L500 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 18, 18, 14, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:28,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:28,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:28,592 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:28,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2100819575, now seen corresponding path program 1 times [2022-03-17 18:45:28,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:28,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339851519] [2022-03-17 18:45:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:28,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6182 backedges. 2675 proven. 0 refuted. 0 times theorem prover too weak. 3507 trivial. 0 not checked. [2022-03-17 18:45:28,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:28,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339851519] [2022-03-17 18:45:28,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339851519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:28,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:28,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:28,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497390590] [2022-03-17 18:45:28,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:28,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:28,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:28,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:28,721 INFO L87 Difference]: Start difference. First operand 2418 states and 3217 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 3 states have internal predecessors, (175), 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) [2022-03-17 18:45:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:28,954 INFO L93 Difference]: Finished difference Result 2670 states and 3504 transitions. [2022-03-17 18:45:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 3 states have internal predecessors, (175), 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 765 [2022-03-17 18:45:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:28,966 INFO L225 Difference]: With dead ends: 2670 [2022-03-17 18:45:28,966 INFO L226 Difference]: Without dead ends: 2670 [2022-03-17 18:45:28,967 INFO L911 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 [2022-03-17 18:45:28,967 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:28,967 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2022-03-17 18:45:28,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2656. [2022-03-17 18:45:28,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2651 states have (on average 1.3149754809505847) internal successors, (3486), 2651 states have internal predecessors, (3486), 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) [2022-03-17 18:45:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 3490 transitions. [2022-03-17 18:45:29,004 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 3490 transitions. Word has length 765 [2022-03-17 18:45:29,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:29,005 INFO L478 AbstractCegarLoop]: Abstraction has 2656 states and 3490 transitions. [2022-03-17 18:45:29,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 3 states have internal predecessors, (175), 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) [2022-03-17 18:45:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 3490 transitions. [2022-03-17 18:45:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2022-03-17 18:45:29,015 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:29,015 INFO L500 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 25, 25, 24, 24, 23, 23, 22, 22, 22, 22, 18, 14, 14, 10, 10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:29,015 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:45:29,015 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:29,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1774785123, now seen corresponding path program 1 times [2022-03-17 18:45:29,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:29,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733299117] [2022-03-17 18:45:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 8724 backedges. 3742 proven. 0 refuted. 0 times theorem prover too weak. 4982 trivial. 0 not checked. [2022-03-17 18:45:29,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:29,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733299117] [2022-03-17 18:45:29,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733299117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:29,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:29,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:29,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567341993] [2022-03-17 18:45:29,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:29,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:29,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:29,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:29,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:29,157 INFO L87 Difference]: Start difference. First operand 2656 states and 3490 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 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) [2022-03-17 18:45:29,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:29,386 INFO L93 Difference]: Finished difference Result 2922 states and 3791 transitions. [2022-03-17 18:45:29,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:29,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 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 889 [2022-03-17 18:45:29,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:29,393 INFO L225 Difference]: With dead ends: 2922 [2022-03-17 18:45:29,393 INFO L226 Difference]: Without dead ends: 2922 [2022-03-17 18:45:29,394 INFO L911 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 [2022-03-17 18:45:29,394 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:29,394 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-03-17 18:45:29,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2908. [2022-03-17 18:45:29,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2903 states have (on average 1.2996899758870135) internal successors, (3773), 2903 states have internal predecessors, (3773), 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) [2022-03-17 18:45:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3777 transitions. [2022-03-17 18:45:29,428 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3777 transitions. Word has length 889 [2022-03-17 18:45:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:29,428 INFO L478 AbstractCegarLoop]: Abstraction has 2908 states and 3777 transitions. [2022-03-17 18:45:29,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 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) [2022-03-17 18:45:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3777 transitions. [2022-03-17 18:45:29,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2022-03-17 18:45:29,439 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:29,440 INFO L500 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 26, 26, 22, 18, 18, 14, 14, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:29,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:45:29,440 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:29,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash -228540207, now seen corresponding path program 1 times [2022-03-17 18:45:29,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:29,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96563949] [2022-03-17 18:45:29,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:29,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:29,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-03-17 18:45:29,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:29,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96563949] [2022-03-17 18:45:29,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96563949] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:29,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799645035] [2022-03-17 18:45:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:29,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:29,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:29,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:45:29,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-17 18:45:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:29,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:29,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-03-17 18:45:30,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:45:32,157 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-03-17 18:45:32,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799645035] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:45:32,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:45:32,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-03-17 18:45:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670713212] [2022-03-17 18:45:32,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:45:32,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 18:45:32,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:32,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 18:45:32,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:32,160 INFO L87 Difference]: Start difference. First operand 2908 states and 3777 transitions. Second operand has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 8 states have internal predecessors, (355), 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) [2022-03-17 18:45:32,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:32,756 INFO L93 Difference]: Finished difference Result 1892 states and 2461 transitions. [2022-03-17 18:45:32,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 18:45:32,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 8 states have internal predecessors, (355), 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 1021 [2022-03-17 18:45:32,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:32,759 INFO L225 Difference]: With dead ends: 1892 [2022-03-17 18:45:32,759 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 18:45:32,759 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 2055 GetRequests, 2044 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:45:32,760 INFO L912 BasicCegarLoop]: 303 mSDtfsCounter, 427 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:32,760 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 315 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-17 18:45:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 18:45:32,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 18:45:32,760 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) [2022-03-17 18:45:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 18:45:32,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1021 [2022-03-17 18:45:32,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:32,761 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 18:45:32,761 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 8 states have internal predecessors, (355), 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) [2022-03-17 18:45:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 18:45:32,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 18:45:32,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 18:45:32,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:32,964 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:32,967 INFO L718 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] [2022-03-17 18:45:32,968 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 18:45:32,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:45:32 BasicIcfg [2022-03-17 18:45:32,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 18:45:32,971 INFO L158 Benchmark]: Toolchain (without parser) took 18804.37ms. Allocated memory was 183.5MB in the beginning and 361.8MB in the end (delta: 178.3MB). Free memory was 133.3MB in the beginning and 188.3MB in the end (delta: -55.1MB). Peak memory consumption was 123.9MB. Max. memory is 8.0GB. [2022-03-17 18:45:32,971 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 183.5MB. Free memory was 150.4MB in the beginning and 150.3MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 18:45:32,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.31ms. Allocated memory is still 183.5MB. Free memory was 133.1MB in the beginning and 154.9MB in the end (delta: -21.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-17 18:45:32,971 INFO L158 Benchmark]: Boogie Preprocessor took 46.31ms. Allocated memory is still 183.5MB. Free memory was 154.9MB in the beginning and 152.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-17 18:45:32,972 INFO L158 Benchmark]: RCFGBuilder took 719.44ms. Allocated memory is still 183.5MB. Free memory was 152.3MB in the beginning and 124.5MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-03-17 18:45:32,972 INFO L158 Benchmark]: IcfgTransformer took 31.92ms. Allocated memory is still 183.5MB. Free memory was 124.5MB in the beginning and 121.1MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-17 18:45:32,972 INFO L158 Benchmark]: TraceAbstraction took 17705.46ms. Allocated memory was 183.5MB in the beginning and 361.8MB in the end (delta: 178.3MB). Free memory was 120.9MB in the beginning and 188.3MB in the end (delta: -67.5MB). Peak memory consumption was 111.6MB. Max. memory is 8.0GB. [2022-03-17 18:45:32,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 183.5MB. Free memory was 150.4MB in the beginning and 150.3MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 292.31ms. Allocated memory is still 183.5MB. Free memory was 133.1MB in the beginning and 154.9MB in the end (delta: -21.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.31ms. Allocated memory is still 183.5MB. Free memory was 154.9MB in the beginning and 152.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 719.44ms. Allocated memory is still 183.5MB. Free memory was 152.3MB in the beginning and 124.5MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * IcfgTransformer took 31.92ms. Allocated memory is still 183.5MB. Free memory was 124.5MB in the beginning and 121.1MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17705.46ms. Allocated memory was 183.5MB in the beginning and 361.8MB in the end (delta: 178.3MB). Free memory was 120.9MB in the beginning and 188.3MB in the end (delta: -67.5MB). Peak memory consumption was 111.6MB. 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: 642]: 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, 156 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.7s, OverallIterations: 22, TraceHistogramMax: 31, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6322 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6320 mSDsluCounter, 6417 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 871 mSDsCounter, 573 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5252 IncrementalHoareTripleChecker+Invalid, 5825 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 573 mSolverCounterUnsat, 5546 mSDtfsCounter, 5252 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5241 GetRequests, 5156 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3215occurred in iteration=17, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 1119 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 10614 NumberOfCodeBlocks, 10614 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 12206 ConstructedInterpolants, 0 QuantifiedInterpolants, 17010 SizeOfPredicates, 2 NumberOfNonLiveVariables, 5723 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 30 InterpolantComputations, 20 PerfectInterpolantSequences, 83450/83710 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! [2022-03-17 18:45:33,001 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...