/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:36:27,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:36:27,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:36:27,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:36:27,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:36:27,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:36:27,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:36:27,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:36:27,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:36:27,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:36:27,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:36:27,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:36:27,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:36:27,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:36:27,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:36:27,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:36:27,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:36:27,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:36:27,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:36:27,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:36:27,231 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:36:27,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:36:27,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:36:27,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:36:27,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:36:27,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:36:27,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:36:27,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:36:27,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:36:27,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:36:27,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 23:36:27,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 23:36:27,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 23:36:27,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 23:36:27,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 23:36:27,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 23:36:27,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 23:36:27,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 23:36:27,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 23:36:27,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:36:27,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:36:27,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:36:27,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:36:27,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:36:27,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:36:27,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:36:27,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:36:27,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:36:27,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:36:27,270 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:36:27,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:36:27,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:36:27,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:36:27,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:36:27,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:36:27,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:36:27,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:36:27,272 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:36:27,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:36:27,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:36:27,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:36:27,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:36:27,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:36:27,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:36:27,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:36:27,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:36:27,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:36:27,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:36:27,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:36:27,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:36:27,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:36:27,274 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:36:27,274 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:36:27,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:36:27,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:36:27,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:36:27,503 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:36:27,504 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:36:27,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c [2022-03-17 23:36:27,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb919b2cf/29cd85b93b6342c38bf247c7a2aaf752/FLAG42068397a [2022-03-17 23:36:28,028 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:36:28,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c [2022-03-17 23:36:28,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb919b2cf/29cd85b93b6342c38bf247c7a2aaf752/FLAG42068397a [2022-03-17 23:36:28,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb919b2cf/29cd85b93b6342c38bf247c7a2aaf752 [2022-03-17 23:36:28,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:36:28,085 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:36:28,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:36:28,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:36:28,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:36:28,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec8e1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28, skipping insertion in model container [2022-03-17 23:36:28,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:36:28,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:36:28,385 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/s3_srvr.blast.13.i.cil-2.c[74353,74366] [2022-03-17 23:36:28,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:36:28,405 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:36:28,478 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/s3_srvr.blast.13.i.cil-2.c[74353,74366] [2022-03-17 23:36:28,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:36:28,491 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:36:28,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28 WrapperNode [2022-03-17 23:36:28,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:36:28,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:36:28,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:36:28,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:36:28,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:36:28,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:36:28,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:36:28,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:36:28,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (1/1) ... [2022-03-17 23:36:28,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:36:28,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:36:28,612 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 23:36:28,627 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 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:36:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:36:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:36:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:36:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:36:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:36:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:36:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:36:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:36:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:36:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:36:28,812 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:36:28,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:36:29,749 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:36:30,237 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:36:30,237 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:36:30,249 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:36:30,257 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:36:30,258 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:36:30,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:36:30 BoogieIcfgContainer [2022-03-17 23:36:30,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:36:30,261 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:36:30,261 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:36:30,261 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:36:30,264 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:36:30" (1/1) ... [2022-03-17 23:36:30,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:36:30 BasicIcfg [2022-03-17 23:36:30,324 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:36:30,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:36:30,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:36:30,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:36:30,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:36:28" (1/4) ... [2022-03-17 23:36:30,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1841dd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:36:30, skipping insertion in model container [2022-03-17 23:36:30,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:28" (2/4) ... [2022-03-17 23:36:30,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1841dd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:36:30, skipping insertion in model container [2022-03-17 23:36:30,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:36:30" (3/4) ... [2022-03-17 23:36:30,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1841dd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:36:30, skipping insertion in model container [2022-03-17 23:36:30,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:36:30" (4/4) ... [2022-03-17 23:36:30,333 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.13.i.cil-2.cqvasr [2022-03-17 23:36:30,337 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:36:30,337 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:36:30,384 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:36:30,389 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 23:36:30,389 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:36:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 23:36:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-17 23:36:30,415 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:30,415 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] [2022-03-17 23:36:30,416 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:30,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-03-17 23:36:30,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:30,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095351884] [2022-03-17 23:36:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:30,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:30,918 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 23:36:30,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:30,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095351884] [2022-03-17 23:36:30,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095351884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:30,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:30,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:30,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31054573] [2022-03-17 23:36:30,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:30,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:30,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:30,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:30,953 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:34,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:34,229 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-03-17 23:36:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-17 23:36:34,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:34,239 INFO L225 Difference]: With dead ends: 430 [2022-03-17 23:36:34,240 INFO L226 Difference]: Without dead ends: 261 [2022-03-17 23:36:34,247 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:34,250 INFO L912 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:34,254 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 23:36:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-17 23:36:34,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-03-17 23:36:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 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 23:36:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-17 23:36:34,313 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-17 23:36:34,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:34,314 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-17 23:36:34,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-17 23:36:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-17 23:36:34,316 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:34,316 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] [2022-03-17 23:36:34,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:36:34,316 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:34,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:34,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1744879992, now seen corresponding path program 1 times [2022-03-17 23:36:34,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:34,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500554233] [2022-03-17 23:36:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:34,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:34,497 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 23:36:34,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:34,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500554233] [2022-03-17 23:36:34,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500554233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:34,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:34,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:34,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51616726] [2022-03-17 23:36:34,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:34,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:34,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:34,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:34,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:34,500 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:37,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:38,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:38,008 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-03-17 23:36:38,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:38,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-17 23:36:38,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:38,010 INFO L225 Difference]: With dead ends: 444 [2022-03-17 23:36:38,010 INFO L226 Difference]: Without dead ends: 289 [2022-03-17 23:36:38,011 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:38,011 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:38,012 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 23:36:38,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-17 23:36:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-03-17 23:36:38,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 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 23:36:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-17 23:36:38,019 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-17 23:36:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:38,019 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-17 23:36:38,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-17 23:36:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-17 23:36:38,026 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:38,026 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 23:36:38,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:36:38,026 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:38,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash -749150668, now seen corresponding path program 1 times [2022-03-17 23:36:38,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:38,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724311646] [2022-03-17 23:36:38,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:38,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:38,180 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 23:36:38,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:38,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724311646] [2022-03-17 23:36:38,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724311646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:38,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:38,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:38,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223847003] [2022-03-17 23:36:38,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:38,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:38,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:38,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:38,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:38,182 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:39,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:41,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:43,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:45,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:46,340 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-03-17 23:36:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:46,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-17 23:36:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:46,342 INFO L225 Difference]: With dead ends: 503 [2022-03-17 23:36:46,342 INFO L226 Difference]: Without dead ends: 319 [2022-03-17 23:36:46,343 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:46,372 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:46,372 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 478 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-17 23:36:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-03-17 23:36:46,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-03-17 23:36:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 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 23:36:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-17 23:36:46,386 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-03-17 23:36:46,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:46,387 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-17 23:36:46,387 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:46,387 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-17 23:36:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 23:36:46,388 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:46,388 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, 1] [2022-03-17 23:36:46,388 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:36:46,388 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:46,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1747882016, now seen corresponding path program 1 times [2022-03-17 23:36:46,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:46,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469052705] [2022-03-17 23:36:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:46,527 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 23:36:46,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:46,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469052705] [2022-03-17 23:36:46,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469052705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:46,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:46,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:46,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944696011] [2022-03-17 23:36:46,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:46,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:46,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:46,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:46,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:46,531 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 23:36:47,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:49,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:51,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:53,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:54,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:54,412 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-03-17 23:36:54,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:54,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 49 [2022-03-17 23:36:54,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:54,414 INFO L225 Difference]: With dead ends: 553 [2022-03-17 23:36:54,414 INFO L226 Difference]: Without dead ends: 329 [2022-03-17 23:36:54,414 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:54,415 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 122 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:54,415 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-17 23:36:54,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-17 23:36:54,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-03-17 23:36:54,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 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 23:36:54,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-17 23:36:54,422 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-03-17 23:36:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:54,423 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-17 23:36:54,423 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 23:36:54,423 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-17 23:36:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-17 23:36:54,424 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:54,424 INFO L500 BasicCegarLoop]: trace histogram [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 23:36:54,424 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:36:54,424 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1803301705, now seen corresponding path program 1 times [2022-03-17 23:36:54,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:54,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932505509] [2022-03-17 23:36:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-17 23:36:54,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:54,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932505509] [2022-03-17 23:36:54,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932505509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:54,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:54,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705024020] [2022-03-17 23:36:54,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:54,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:54,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:54,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:54,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:54,520 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:36:56,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:58,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:00,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:01,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:02,203 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-17 23:37:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:02,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 70 [2022-03-17 23:37:02,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:02,205 INFO L225 Difference]: With dead ends: 513 [2022-03-17 23:37:02,205 INFO L226 Difference]: Without dead ends: 278 [2022-03-17 23:37:02,206 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:02,206 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:02,206 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:37:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-17 23:37:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-17 23:37:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 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 23:37:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-17 23:37:02,213 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-17 23:37:02,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:02,213 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-17 23:37:02,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-17 23:37:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-17 23:37:02,214 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:02,214 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:02,214 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:37:02,214 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:02,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:02,214 INFO L85 PathProgramCache]: Analyzing trace with hash 63867932, now seen corresponding path program 1 times [2022-03-17 23:37:02,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:02,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510196956] [2022-03-17 23:37:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:02,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:02,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:02,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510196956] [2022-03-17 23:37:02,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510196956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:02,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:02,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:02,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799733220] [2022-03-17 23:37:02,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:02,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:02,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:02,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:02,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:02,350 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 23:37:06,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:06,138 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-17 23:37:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:06,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 83 [2022-03-17 23:37:06,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:06,140 INFO L225 Difference]: With dead ends: 513 [2022-03-17 23:37:06,140 INFO L226 Difference]: Without dead ends: 278 [2022-03-17 23:37:06,141 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:06,141 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:06,141 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 23:37:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-17 23:37:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-17 23:37:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 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 23:37:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-17 23:37:06,148 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-17 23:37:06,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:06,148 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-17 23:37:06,149 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 23:37:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-17 23:37:06,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:37:06,149 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:06,150 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:06,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:37:06,150 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:06,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:06,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1024321373, now seen corresponding path program 1 times [2022-03-17 23:37:06,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:06,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082075220] [2022-03-17 23:37:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:06,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:06,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:06,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:06,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082075220] [2022-03-17 23:37:06,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082075220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:06,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:06,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:06,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495226730] [2022-03-17 23:37:06,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:06,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:06,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:06,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:06,285 INFO L87 Difference]: Start difference. First operand 261 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:09,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:09,711 INFO L93 Difference]: Finished difference Result 574 states and 927 transitions. [2022-03-17 23:37:09,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:09,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 84 [2022-03-17 23:37:09,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:09,713 INFO L225 Difference]: With dead ends: 574 [2022-03-17 23:37:09,713 INFO L226 Difference]: Without dead ends: 339 [2022-03-17 23:37:09,713 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:09,714 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:09,714 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:37:09,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-17 23:37:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-17 23:37:09,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 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 23:37:09,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-17 23:37:09,719 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-17 23:37:09,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:09,720 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-17 23:37:09,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-17 23:37:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:37:09,720 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:09,720 INFO L500 BasicCegarLoop]: trace histogram [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] [2022-03-17 23:37:09,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:37:09,721 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:09,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:09,721 INFO L85 PathProgramCache]: Analyzing trace with hash 992055491, now seen corresponding path program 1 times [2022-03-17 23:37:09,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:09,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384462029] [2022-03-17 23:37:09,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:09,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:09,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:09,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384462029] [2022-03-17 23:37:09,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384462029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:09,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:09,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:09,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211168640] [2022-03-17 23:37:09,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:09,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:09,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:09,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:09,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:09,876 INFO L87 Difference]: Start difference. First operand 261 states and 423 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:12,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:14,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:14,130 INFO L93 Difference]: Finished difference Result 512 states and 830 transitions. [2022-03-17 23:37:14,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:14,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 84 [2022-03-17 23:37:14,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:14,131 INFO L225 Difference]: With dead ends: 512 [2022-03-17 23:37:14,131 INFO L226 Difference]: Without dead ends: 277 [2022-03-17 23:37:14,132 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:14,132 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:14,133 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 23:37:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-17 23:37:14,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 261. [2022-03-17 23:37:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6328125) internal successors, (418), 256 states have internal predecessors, (418), 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 23:37:14,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 422 transitions. [2022-03-17 23:37:14,137 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 422 transitions. Word has length 84 [2022-03-17 23:37:14,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:14,137 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 422 transitions. [2022-03-17 23:37:14,137 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:14,137 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 422 transitions. [2022-03-17 23:37:14,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:37:14,138 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:14,138 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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 23:37:14,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:37:14,138 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:14,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:14,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1577446659, now seen corresponding path program 1 times [2022-03-17 23:37:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:14,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363340429] [2022-03-17 23:37:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:14,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:14,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:14,244 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:14,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:14,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363340429] [2022-03-17 23:37:14,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363340429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:14,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:14,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:14,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029956183] [2022-03-17 23:37:14,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:14,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:14,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:14,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:14,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:14,246 INFO L87 Difference]: Start difference. First operand 261 states and 422 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:15,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:18,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:19,360 INFO L93 Difference]: Finished difference Result 574 states and 919 transitions. [2022-03-17 23:37:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:19,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 84 [2022-03-17 23:37:19,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:19,362 INFO L225 Difference]: With dead ends: 574 [2022-03-17 23:37:19,362 INFO L226 Difference]: Without dead ends: 339 [2022-03-17 23:37:19,363 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:19,363 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:19,363 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:37:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-17 23:37:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-17 23:37:19,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 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 23:37:19,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-17 23:37:19,369 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-17 23:37:19,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:19,369 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-17 23:37:19,369 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-17 23:37:19,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:37:19,370 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:19,370 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:19,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:37:19,370 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:19,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:19,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1333437405, now seen corresponding path program 1 times [2022-03-17 23:37:19,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:19,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551668776] [2022-03-17 23:37:19,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:19,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:19,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:19,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:19,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551668776] [2022-03-17 23:37:19,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551668776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:19,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:19,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:19,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835700938] [2022-03-17 23:37:19,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:19,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:19,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:19,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:19,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:19,496 INFO L87 Difference]: Start difference. First operand 261 states and 418 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:22,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:23,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:23,050 INFO L93 Difference]: Finished difference Result 573 states and 911 transitions. [2022-03-17 23:37:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:23,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 84 [2022-03-17 23:37:23,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:23,052 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:37:23,052 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 23:37:23,053 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:23,053 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:23,053 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 23:37:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 23:37:23,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-17 23:37:23,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 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 23:37:23,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-17 23:37:23,063 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-17 23:37:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:23,063 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-17 23:37:23,063 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 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 23:37:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-17 23:37:23,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 23:37:23,064 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:23,065 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-03-17 23:37:23,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:37:23,065 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:23,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:23,065 INFO L85 PathProgramCache]: Analyzing trace with hash -628613252, now seen corresponding path program 1 times [2022-03-17 23:37:23,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:23,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898287988] [2022-03-17 23:37:23,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:23,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:23,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:23,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:23,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898287988] [2022-03-17 23:37:23,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898287988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:23,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:23,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282380851] [2022-03-17 23:37:23,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:23,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:23,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:23,190 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 23:37:24,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:26,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:28,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:29,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:29,362 INFO L93 Difference]: Finished difference Result 573 states and 904 transitions. [2022-03-17 23:37:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:29,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 23:37:29,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:29,363 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:37:29,363 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 23:37:29,364 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:29,364 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:29,365 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 23:37:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 23:37:29,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-17 23:37:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5859375) internal successors, (406), 256 states have internal predecessors, (406), 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 23:37:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 410 transitions. [2022-03-17 23:37:29,369 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 410 transitions. Word has length 85 [2022-03-17 23:37:29,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:29,370 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 410 transitions. [2022-03-17 23:37:29,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 23:37:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 410 transitions. [2022-03-17 23:37:29,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-17 23:37:29,370 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:29,370 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-03-17 23:37:29,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:37:29,371 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:29,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1762044185, now seen corresponding path program 1 times [2022-03-17 23:37:29,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:29,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226096050] [2022-03-17 23:37:29,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:29,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:29,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:29,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226096050] [2022-03-17 23:37:29,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226096050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:29,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:29,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:29,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801745379] [2022-03-17 23:37:29,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:29,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:29,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:29,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:29,464 INFO L87 Difference]: Start difference. First operand 261 states and 410 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:30,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:32,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:33,678 INFO L93 Difference]: Finished difference Result 573 states and 897 transitions. [2022-03-17 23:37:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:33,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-17 23:37:33,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:33,680 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:37:33,680 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 23:37:33,680 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:33,681 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 143 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:33,681 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 23:37:33,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 23:37:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-17 23:37:33,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 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 23:37:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 406 transitions. [2022-03-17 23:37:33,686 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 406 transitions. Word has length 86 [2022-03-17 23:37:33,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:33,686 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 406 transitions. [2022-03-17 23:37:33,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 406 transitions. [2022-03-17 23:37:33,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 23:37:33,687 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:33,687 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-03-17 23:37:33,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:37:33,687 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:33,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash -67928033, now seen corresponding path program 1 times [2022-03-17 23:37:33,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:33,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027327765] [2022-03-17 23:37:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:33,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:33,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:33,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027327765] [2022-03-17 23:37:33,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027327765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:33,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:33,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:33,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067491980] [2022-03-17 23:37:33,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:33,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:33,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:33,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:33,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:33,770 INFO L87 Difference]: Start difference. First operand 261 states and 406 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 23:37:34,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:36,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:37,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:39,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:40,149 INFO L93 Difference]: Finished difference Result 499 states and 785 transitions. [2022-03-17 23:37:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:40,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-17 23:37:40,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:40,151 INFO L225 Difference]: With dead ends: 499 [2022-03-17 23:37:40,151 INFO L226 Difference]: Without dead ends: 264 [2022-03-17 23:37:40,151 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:40,152 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:40,152 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:37:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-17 23:37:40,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-17 23:37:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 405 transitions. [2022-03-17 23:37:40,157 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 405 transitions. Word has length 87 [2022-03-17 23:37:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:40,157 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 405 transitions. [2022-03-17 23:37:40,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 23:37:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2022-03-17 23:37:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 23:37:40,158 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:40,158 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:40,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:37:40,158 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:40,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:40,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1151267150, now seen corresponding path program 1 times [2022-03-17 23:37:40,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:40,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774773544] [2022-03-17 23:37:40,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:40,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-17 23:37:40,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:40,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774773544] [2022-03-17 23:37:40,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774773544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:40,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:40,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:40,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903543497] [2022-03-17 23:37:40,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:40,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:40,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:40,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:40,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:40,284 INFO L87 Difference]: Start difference. First operand 261 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:43,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:43,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:43,492 INFO L93 Difference]: Finished difference Result 537 states and 839 transitions. [2022-03-17 23:37:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:43,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-17 23:37:43,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:43,495 INFO L225 Difference]: With dead ends: 537 [2022-03-17 23:37:43,495 INFO L226 Difference]: Without dead ends: 302 [2022-03-17 23:37:43,495 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:43,496 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:43,496 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 23:37:43,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-17 23:37:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-17 23:37:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 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 23:37:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-03-17 23:37:43,503 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 87 [2022-03-17 23:37:43,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:43,503 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-03-17 23:37:43,503 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-03-17 23:37:43,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-17 23:37:43,504 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:43,505 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:37:43,505 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:37:43,505 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:43,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:43,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1763344841, now seen corresponding path program 1 times [2022-03-17 23:37:43,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:43,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31431499] [2022-03-17 23:37:43,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:43,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:43,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:43,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31431499] [2022-03-17 23:37:43,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31431499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:43,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:43,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361721960] [2022-03-17 23:37:43,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:43,606 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:43,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:43,607 INFO L87 Difference]: Start difference. First operand 283 states and 438 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 23:37:46,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:48,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:49,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:49,272 INFO L93 Difference]: Finished difference Result 557 states and 869 transitions. [2022-03-17 23:37:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 100 [2022-03-17 23:37:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:49,274 INFO L225 Difference]: With dead ends: 557 [2022-03-17 23:37:49,274 INFO L226 Difference]: Without dead ends: 300 [2022-03-17 23:37:49,274 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:49,275 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 34 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:49,275 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 387 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:37:49,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-03-17 23:37:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-03-17 23:37:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 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 23:37:49,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-03-17 23:37:49,280 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 100 [2022-03-17 23:37:49,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:49,280 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-03-17 23:37:49,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 23:37:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-03-17 23:37:49,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-17 23:37:49,281 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:49,281 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2022-03-17 23:37:49,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:37:49,281 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:49,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:49,281 INFO L85 PathProgramCache]: Analyzing trace with hash 183034376, now seen corresponding path program 1 times [2022-03-17 23:37:49,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:49,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391936851] [2022-03-17 23:37:49,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:49,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:49,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-17 23:37:49,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:49,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391936851] [2022-03-17 23:37:49,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391936851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:49,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:49,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:49,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361672192] [2022-03-17 23:37:49,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:49,399 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:49,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:49,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:49,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:49,399 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 23:37:50,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:52,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:54,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:54,589 INFO L93 Difference]: Finished difference Result 568 states and 883 transitions. [2022-03-17 23:37:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:54,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 101 [2022-03-17 23:37:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:54,590 INFO L225 Difference]: With dead ends: 568 [2022-03-17 23:37:54,590 INFO L226 Difference]: Without dead ends: 311 [2022-03-17 23:37:54,591 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:54,591 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:54,591 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:37:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-17 23:37:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-17 23:37:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 294 states have internal predecessors, (456), 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 23:37:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2022-03-17 23:37:54,596 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 101 [2022-03-17 23:37:54,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:54,597 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2022-03-17 23:37:54,597 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 23:37:54,597 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2022-03-17 23:37:54,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-17 23:37:54,598 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:54,598 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2022-03-17 23:37:54,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:37:54,598 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:54,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:54,598 INFO L85 PathProgramCache]: Analyzing trace with hash 332221618, now seen corresponding path program 1 times [2022-03-17 23:37:54,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:54,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486908597] [2022-03-17 23:37:54,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:54,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:37:54,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:54,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486908597] [2022-03-17 23:37:54,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486908597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:54,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:54,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727099880] [2022-03-17 23:37:54,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:54,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:54,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:54,685 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 23:37:56,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:58,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:00,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:02,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:02,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:02,696 INFO L93 Difference]: Finished difference Result 649 states and 999 transitions. [2022-03-17 23:38:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:02,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 102 [2022-03-17 23:38:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:02,698 INFO L225 Difference]: With dead ends: 649 [2022-03-17 23:38:02,698 INFO L226 Difference]: Without dead ends: 376 [2022-03-17 23:38:02,698 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:02,699 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:02,699 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-03-17 23:38:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-17 23:38:02,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 299. [2022-03-17 23:38:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 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 23:38:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-17 23:38:02,704 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 102 [2022-03-17 23:38:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:02,704 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-17 23:38:02,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 23:38:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-17 23:38:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-17 23:38:02,705 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:02,705 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:38:02,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:38:02,706 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:02,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1369020480, now seen corresponding path program 1 times [2022-03-17 23:38:02,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:02,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030222674] [2022-03-17 23:38:02,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:02,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:38:02,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030222674] [2022-03-17 23:38:02,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030222674] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:02,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:02,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:02,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993087259] [2022-03-17 23:38:02,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:02,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:02,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:02,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:02,847 INFO L87 Difference]: Start difference. First operand 299 states and 455 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 23:38:06,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:07,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:07,343 INFO L93 Difference]: Finished difference Result 639 states and 976 transitions. [2022-03-17 23:38:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:07,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 105 [2022-03-17 23:38:07,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:07,345 INFO L225 Difference]: With dead ends: 639 [2022-03-17 23:38:07,345 INFO L226 Difference]: Without dead ends: 366 [2022-03-17 23:38:07,345 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:07,346 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 134 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:07,346 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 374 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 23:38:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-03-17 23:38:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 299. [2022-03-17 23:38:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 294 states have internal predecessors, (446), 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 23:38:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2022-03-17 23:38:07,353 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 105 [2022-03-17 23:38:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:07,353 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2022-03-17 23:38:07,353 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 23:38:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2022-03-17 23:38:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:38:07,354 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:07,354 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-17 23:38:07,354 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:38:07,354 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1497476783, now seen corresponding path program 1 times [2022-03-17 23:38:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:07,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153127375] [2022-03-17 23:38:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:07,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:07,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:07,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153127375] [2022-03-17 23:38:07,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153127375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:07,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:07,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:07,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327559625] [2022-03-17 23:38:07,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:07,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:07,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:07,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:07,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:07,459 INFO L87 Difference]: Start difference. First operand 299 states and 450 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 23:38:08,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:09,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:11,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:13,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:14,395 INFO L93 Difference]: Finished difference Result 653 states and 989 transitions. [2022-03-17 23:38:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 109 [2022-03-17 23:38:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:14,397 INFO L225 Difference]: With dead ends: 653 [2022-03-17 23:38:14,397 INFO L226 Difference]: Without dead ends: 380 [2022-03-17 23:38:14,397 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:14,397 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 76 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:14,398 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 503 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:38:14,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-17 23:38:14,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 327. [2022-03-17 23:38:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.5124223602484472) internal successors, (487), 322 states have internal predecessors, (487), 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 23:38:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 491 transitions. [2022-03-17 23:38:14,418 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 491 transitions. Word has length 109 [2022-03-17 23:38:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:14,418 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 491 transitions. [2022-03-17 23:38:14,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 23:38:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 491 transitions. [2022-03-17 23:38:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:38:14,419 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:14,419 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-17 23:38:14,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:38:14,419 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:14,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:14,419 INFO L85 PathProgramCache]: Analyzing trace with hash 330780464, now seen corresponding path program 1 times [2022-03-17 23:38:14,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:14,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810023504] [2022-03-17 23:38:14,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:14,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:14,524 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:14,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:14,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810023504] [2022-03-17 23:38:14,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810023504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:14,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:14,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:14,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680685310] [2022-03-17 23:38:14,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:14,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:14,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:14,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:14,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:14,525 INFO L87 Difference]: Start difference. First operand 327 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 23:38:17,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:18,465 INFO L93 Difference]: Finished difference Result 735 states and 1112 transitions. [2022-03-17 23:38:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:18,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 109 [2022-03-17 23:38:18,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:18,467 INFO L225 Difference]: With dead ends: 735 [2022-03-17 23:38:18,467 INFO L226 Difference]: Without dead ends: 434 [2022-03-17 23:38:18,468 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:18,468 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 122 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:18,468 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 410 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 23:38:18,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-03-17 23:38:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 325. [2022-03-17 23:38:18,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.509375) internal successors, (483), 320 states have internal predecessors, (483), 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 23:38:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 487 transitions. [2022-03-17 23:38:18,477 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 487 transitions. Word has length 109 [2022-03-17 23:38:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:18,477 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 487 transitions. [2022-03-17 23:38:18,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 23:38:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 487 transitions. [2022-03-17 23:38:18,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:38:18,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:18,478 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:38:18,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:38:18,479 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:18,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:18,479 INFO L85 PathProgramCache]: Analyzing trace with hash 399122611, now seen corresponding path program 1 times [2022-03-17 23:38:18,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:18,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903936039] [2022-03-17 23:38:18,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:18,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:18,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:18,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:18,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903936039] [2022-03-17 23:38:18,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903936039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:18,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:18,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:18,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250063562] [2022-03-17 23:38:18,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:18,575 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:18,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:18,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:18,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:18,575 INFO L87 Difference]: Start difference. First operand 325 states and 487 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:20,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:22,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:22,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:22,965 INFO L93 Difference]: Finished difference Result 767 states and 1162 transitions. [2022-03-17 23:38:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:22,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:38:22,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:22,967 INFO L225 Difference]: With dead ends: 767 [2022-03-17 23:38:22,967 INFO L226 Difference]: Without dead ends: 468 [2022-03-17 23:38:22,967 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:22,968 INFO L912 BasicCegarLoop]: 132 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:22,968 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 372 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:38:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-17 23:38:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 389. [2022-03-17 23:38:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5078125) internal successors, (579), 384 states have internal predecessors, (579), 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 23:38:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 583 transitions. [2022-03-17 23:38:22,975 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 583 transitions. Word has length 110 [2022-03-17 23:38:22,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:22,975 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 583 transitions. [2022-03-17 23:38:22,976 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 583 transitions. [2022-03-17 23:38:22,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:38:22,976 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:22,976 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:38:22,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:38:22,977 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:22,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash -314587267, now seen corresponding path program 1 times [2022-03-17 23:38:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:22,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388254753] [2022-03-17 23:38:22,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:22,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:23,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:23,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388254753] [2022-03-17 23:38:23,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388254753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:23,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:23,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:23,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244023894] [2022-03-17 23:38:23,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:23,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:23,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:23,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:23,078 INFO L87 Difference]: Start difference. First operand 389 states and 583 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:24,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:27,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:28,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:28,351 INFO L93 Difference]: Finished difference Result 828 states and 1246 transitions. [2022-03-17 23:38:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:28,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:38:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:28,353 INFO L225 Difference]: With dead ends: 828 [2022-03-17 23:38:28,353 INFO L226 Difference]: Without dead ends: 465 [2022-03-17 23:38:28,354 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:28,354 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 71 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:28,354 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 509 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:38:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-03-17 23:38:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 418. [2022-03-17 23:38:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 1.5036319612590798) internal successors, (621), 413 states have internal predecessors, (621), 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 23:38:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 625 transitions. [2022-03-17 23:38:28,361 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 625 transitions. Word has length 110 [2022-03-17 23:38:28,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:28,361 INFO L478 AbstractCegarLoop]: Abstraction has 418 states and 625 transitions. [2022-03-17 23:38:28,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 625 transitions. [2022-03-17 23:38:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:38:28,362 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:28,362 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:38:28,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:38:28,363 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:28,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2122434788, now seen corresponding path program 1 times [2022-03-17 23:38:28,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:28,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089303249] [2022-03-17 23:38:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:28,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:28,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-17 23:38:28,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:28,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089303249] [2022-03-17 23:38:28,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089303249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:28,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:28,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:28,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583579210] [2022-03-17 23:38:28,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:28,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:28,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:28,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:28,492 INFO L87 Difference]: Start difference. First operand 418 states and 625 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 23:38:31,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:33,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:34,124 INFO L93 Difference]: Finished difference Result 848 states and 1275 transitions. [2022-03-17 23:38:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:34,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 110 [2022-03-17 23:38:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:34,126 INFO L225 Difference]: With dead ends: 848 [2022-03-17 23:38:34,126 INFO L226 Difference]: Without dead ends: 456 [2022-03-17 23:38:34,127 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:34,127 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 28 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:34,127 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 433 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:38:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-17 23:38:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2022-03-17 23:38:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 437 states have (on average 1.5011441647597255) internal successors, (656), 437 states have internal predecessors, (656), 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 23:38:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 660 transitions. [2022-03-17 23:38:34,137 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 660 transitions. Word has length 110 [2022-03-17 23:38:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:34,137 INFO L478 AbstractCegarLoop]: Abstraction has 442 states and 660 transitions. [2022-03-17 23:38:34,137 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 23:38:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 660 transitions. [2022-03-17 23:38:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 23:38:34,138 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:34,138 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:34,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:38:34,139 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:34,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:34,139 INFO L85 PathProgramCache]: Analyzing trace with hash -149067405, now seen corresponding path program 1 times [2022-03-17 23:38:34,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:34,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728240106] [2022-03-17 23:38:34,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:34,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:34,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:34,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728240106] [2022-03-17 23:38:34,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728240106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:34,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:34,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:34,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146775522] [2022-03-17 23:38:34,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:34,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:34,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:34,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:34,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:34,238 INFO L87 Difference]: Start difference. First operand 442 states and 660 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 23:38:36,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:38,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:38,692 INFO L93 Difference]: Finished difference Result 965 states and 1448 transitions. [2022-03-17 23:38:38,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:38,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 122 [2022-03-17 23:38:38,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:38,694 INFO L225 Difference]: With dead ends: 965 [2022-03-17 23:38:38,694 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 23:38:38,695 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:38,695 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 111 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:38,696 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 396 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:38:38,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 23:38:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 479. [2022-03-17 23:38:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5021097046413503) internal successors, (712), 474 states have internal predecessors, (712), 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 23:38:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 716 transitions. [2022-03-17 23:38:38,704 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 716 transitions. Word has length 122 [2022-03-17 23:38:38,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:38,704 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 716 transitions. [2022-03-17 23:38:38,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 23:38:38,704 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 716 transitions. [2022-03-17 23:38:38,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:38:38,705 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:38,705 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:38:38,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:38:38,705 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:38,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:38,712 INFO L85 PathProgramCache]: Analyzing trace with hash -380141108, now seen corresponding path program 1 times [2022-03-17 23:38:38,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:38,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343501987] [2022-03-17 23:38:38,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:38,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-17 23:38:38,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:38,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343501987] [2022-03-17 23:38:38,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343501987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:38,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:38,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:38,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931594407] [2022-03-17 23:38:38,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:38,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:38,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:38,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:38,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:38,807 INFO L87 Difference]: Start difference. First operand 479 states and 716 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 23:38:41,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:43,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:44,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:44,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:44,935 INFO L93 Difference]: Finished difference Result 977 states and 1466 transitions. [2022-03-17 23:38:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:44,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:38:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:44,937 INFO L225 Difference]: With dead ends: 977 [2022-03-17 23:38:44,937 INFO L226 Difference]: Without dead ends: 524 [2022-03-17 23:38:44,938 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:44,938 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 80 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:44,939 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 511 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 23:38:44,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-03-17 23:38:44,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 479. [2022-03-17 23:38:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5) internal successors, (711), 474 states have internal predecessors, (711), 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 23:38:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 715 transitions. [2022-03-17 23:38:44,947 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 715 transitions. Word has length 123 [2022-03-17 23:38:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:44,947 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 715 transitions. [2022-03-17 23:38:44,947 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 23:38:44,947 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 715 transitions. [2022-03-17 23:38:44,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:38:44,948 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:44,948 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:44,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:38:44,948 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:44,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:44,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1869899920, now seen corresponding path program 1 times [2022-03-17 23:38:44,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:44,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658715610] [2022-03-17 23:38:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:44,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:45,033 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:45,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:45,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658715610] [2022-03-17 23:38:45,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658715610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:45,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:45,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:45,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881964173] [2022-03-17 23:38:45,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:45,033 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:45,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:45,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:45,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:45,034 INFO L87 Difference]: Start difference. First operand 479 states and 715 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 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 23:38:47,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:47,449 INFO L93 Difference]: Finished difference Result 973 states and 1458 transitions. [2022-03-17 23:38:47,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:47,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 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 123 [2022-03-17 23:38:47,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:47,452 INFO L225 Difference]: With dead ends: 973 [2022-03-17 23:38:47,452 INFO L226 Difference]: Without dead ends: 520 [2022-03-17 23:38:47,453 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:47,454 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 52 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:47,455 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 515 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:38:47,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-03-17 23:38:47,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 490. [2022-03-17 23:38:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5010309278350515) internal successors, (728), 485 states have internal predecessors, (728), 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 23:38:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 732 transitions. [2022-03-17 23:38:47,464 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 732 transitions. Word has length 123 [2022-03-17 23:38:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:47,464 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 732 transitions. [2022-03-17 23:38:47,464 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 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 23:38:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 732 transitions. [2022-03-17 23:38:47,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:38:47,465 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:47,465 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:38:47,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:38:47,466 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:47,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:47,466 INFO L85 PathProgramCache]: Analyzing trace with hash 486911117, now seen corresponding path program 1 times [2022-03-17 23:38:47,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:47,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013464140] [2022-03-17 23:38:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:47,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:47,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-17 23:38:47,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:47,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013464140] [2022-03-17 23:38:47,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013464140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:47,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:47,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:47,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001072453] [2022-03-17 23:38:47,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:47,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:47,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:47,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:47,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:47,556 INFO L87 Difference]: Start difference. First operand 490 states and 732 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 23:38:50,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:53,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:53,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:53,397 INFO L93 Difference]: Finished difference Result 1019 states and 1528 transitions. [2022-03-17 23:38:53,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:53,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:38:53,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:53,399 INFO L225 Difference]: With dead ends: 1019 [2022-03-17 23:38:53,399 INFO L226 Difference]: Without dead ends: 555 [2022-03-17 23:38:53,400 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:53,400 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 132 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:53,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 364 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 454 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:38:53,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-03-17 23:38:53,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 490. [2022-03-17 23:38:53,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.4845360824742269) internal successors, (720), 485 states have internal predecessors, (720), 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 23:38:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 724 transitions. [2022-03-17 23:38:53,409 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 724 transitions. Word has length 123 [2022-03-17 23:38:53,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:53,409 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 724 transitions. [2022-03-17 23:38:53,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 23:38:53,409 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 724 transitions. [2022-03-17 23:38:53,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 23:38:53,410 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:53,410 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:53,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:38:53,410 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash 996942491, now seen corresponding path program 1 times [2022-03-17 23:38:53,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:53,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815675175] [2022-03-17 23:38:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:53,523 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:53,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:53,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815675175] [2022-03-17 23:38:53,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815675175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:53,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:53,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:53,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559351148] [2022-03-17 23:38:53,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:53,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:53,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:53,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:53,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:53,524 INFO L87 Difference]: Start difference. First operand 490 states and 724 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 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 23:38:54,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:56,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:59,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:59,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:59,742 INFO L93 Difference]: Finished difference Result 1061 states and 1574 transitions. [2022-03-17 23:38:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 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 130 [2022-03-17 23:38:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:59,744 INFO L225 Difference]: With dead ends: 1061 [2022-03-17 23:38:59,744 INFO L226 Difference]: Without dead ends: 597 [2022-03-17 23:38:59,745 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:59,745 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 104 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:59,745 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 367 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 461 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 23:38:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-17 23:38:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 533. [2022-03-17 23:38:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4867424242424243) internal successors, (785), 528 states have internal predecessors, (785), 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 23:38:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 789 transitions. [2022-03-17 23:38:59,754 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 789 transitions. Word has length 130 [2022-03-17 23:38:59,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:59,754 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 789 transitions. [2022-03-17 23:38:59,754 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 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 23:38:59,754 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 789 transitions. [2022-03-17 23:38:59,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:38:59,756 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:59,756 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-17 23:38:59,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:38:59,756 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1679933841, now seen corresponding path program 1 times [2022-03-17 23:38:59,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:59,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463357615] [2022-03-17 23:38:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:59,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:59,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-17 23:38:59,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:59,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463357615] [2022-03-17 23:38:59,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463357615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:59,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:59,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303297473] [2022-03-17 23:38:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:59,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:59,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:59,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:59,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:59,854 INFO L87 Difference]: Start difference. First operand 533 states and 789 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 23:39:02,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:05,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:05,448 INFO L93 Difference]: Finished difference Result 1107 states and 1644 transitions. [2022-03-17 23:39:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:05,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 131 [2022-03-17 23:39:05,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:05,450 INFO L225 Difference]: With dead ends: 1107 [2022-03-17 23:39:05,450 INFO L226 Difference]: Without dead ends: 600 [2022-03-17 23:39:05,450 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:05,451 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 124 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:05,451 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 380 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:39:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-17 23:39:05,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 533. [2022-03-17 23:39:05,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4696969696969697) internal successors, (776), 528 states have internal predecessors, (776), 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 23:39:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 780 transitions. [2022-03-17 23:39:05,464 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 780 transitions. Word has length 131 [2022-03-17 23:39:05,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:05,464 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 780 transitions. [2022-03-17 23:39:05,464 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 23:39:05,464 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 780 transitions. [2022-03-17 23:39:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:39:05,465 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:05,465 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:05,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:39:05,465 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:05,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:05,466 INFO L85 PathProgramCache]: Analyzing trace with hash -307536964, now seen corresponding path program 1 times [2022-03-17 23:39:05,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:05,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967288709] [2022-03-17 23:39:05,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:05,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:05,553 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:39:05,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:05,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967288709] [2022-03-17 23:39:05,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967288709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:05,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:05,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:05,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648577384] [2022-03-17 23:39:05,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:05,554 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:05,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:05,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:05,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:05,555 INFO L87 Difference]: Start difference. First operand 533 states and 780 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 23:39:06,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:08,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:10,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:10,316 INFO L93 Difference]: Finished difference Result 1064 states and 1561 transitions. [2022-03-17 23:39:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:10,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 131 [2022-03-17 23:39:10,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:10,318 INFO L225 Difference]: With dead ends: 1064 [2022-03-17 23:39:10,318 INFO L226 Difference]: Without dead ends: 557 [2022-03-17 23:39:10,319 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:10,320 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:10,320 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 535 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:39:10,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-03-17 23:39:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 536. [2022-03-17 23:39:10,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 531 states have (on average 1.4670433145009416) internal successors, (779), 531 states have internal predecessors, (779), 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 23:39:10,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 783 transitions. [2022-03-17 23:39:10,328 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 783 transitions. Word has length 131 [2022-03-17 23:39:10,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:10,328 INFO L478 AbstractCegarLoop]: Abstraction has 536 states and 783 transitions. [2022-03-17 23:39:10,328 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 23:39:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 783 transitions. [2022-03-17 23:39:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:39:10,329 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:10,329 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-17 23:39:10,329 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:39:10,329 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash 194878290, now seen corresponding path program 1 times [2022-03-17 23:39:10,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:10,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598629217] [2022-03-17 23:39:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:10,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-17 23:39:10,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:10,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598629217] [2022-03-17 23:39:10,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598629217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:10,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:10,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:39:10,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696269096] [2022-03-17 23:39:10,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:10,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:39:10,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:10,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:39:10,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:10,451 INFO L87 Difference]: Start difference. First operand 536 states and 783 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:12,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:12,757 INFO L93 Difference]: Finished difference Result 1511 states and 2226 transitions. [2022-03-17 23:39:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:39:12,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:39:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:12,760 INFO L225 Difference]: With dead ends: 1511 [2022-03-17 23:39:12,760 INFO L226 Difference]: Without dead ends: 1001 [2022-03-17 23:39:12,761 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:12,761 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:12,761 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 433 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:39:12,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-03-17 23:39:12,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-03-17 23:39:12,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.464859437751004) internal successors, (1459), 996 states have internal predecessors, (1459), 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 23:39:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1463 transitions. [2022-03-17 23:39:12,776 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1463 transitions. Word has length 131 [2022-03-17 23:39:12,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:12,776 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1463 transitions. [2022-03-17 23:39:12,776 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:12,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1463 transitions. [2022-03-17 23:39:12,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:39:12,778 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:12,778 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-17 23:39:12,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:39:12,778 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:12,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1014363949, now seen corresponding path program 1 times [2022-03-17 23:39:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:12,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504920715] [2022-03-17 23:39:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:12,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:12,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-17 23:39:12,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:12,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504920715] [2022-03-17 23:39:12,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504920715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:12,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:12,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:39:12,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693358697] [2022-03-17 23:39:12,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:12,854 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:39:12,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:12,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:39:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:12,855 INFO L87 Difference]: Start difference. First operand 1001 states and 1463 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 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 23:39:14,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:15,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:15,123 INFO L93 Difference]: Finished difference Result 2003 states and 2933 transitions. [2022-03-17 23:39:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:39:15,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 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 131 [2022-03-17 23:39:15,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:15,126 INFO L225 Difference]: With dead ends: 2003 [2022-03-17 23:39:15,126 INFO L226 Difference]: Without dead ends: 1028 [2022-03-17 23:39:15,127 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:15,127 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:15,127 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 23:39:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-03-17 23:39:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2022-03-17 23:39:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1023 states have (on average 1.4604105571847508) internal successors, (1494), 1023 states have internal predecessors, (1494), 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 23:39:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1498 transitions. [2022-03-17 23:39:15,143 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1498 transitions. Word has length 131 [2022-03-17 23:39:15,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:15,143 INFO L478 AbstractCegarLoop]: Abstraction has 1028 states and 1498 transitions. [2022-03-17 23:39:15,143 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 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 23:39:15,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1498 transitions. [2022-03-17 23:39:15,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:39:15,146 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:15,146 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-17 23:39:15,146 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:39:15,146 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash -955143212, now seen corresponding path program 1 times [2022-03-17 23:39:15,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:15,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237251969] [2022-03-17 23:39:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:15,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 23:39:15,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:15,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237251969] [2022-03-17 23:39:15,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237251969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:15,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:15,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:39:15,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034837470] [2022-03-17 23:39:15,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:15,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:39:15,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:15,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:39:15,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:15,250 INFO L87 Difference]: Start difference. First operand 1028 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:16,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:19,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:19,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:19,404 INFO L93 Difference]: Finished difference Result 2032 states and 2969 transitions. [2022-03-17 23:39:19,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:39:19,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:39:19,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:19,407 INFO L225 Difference]: With dead ends: 2032 [2022-03-17 23:39:19,407 INFO L226 Difference]: Without dead ends: 1030 [2022-03-17 23:39:19,408 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:19,408 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:19,408 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 23:39:19,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-03-17 23:39:19,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-03-17 23:39:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1025 states have (on average 1.4595121951219512) internal successors, (1496), 1025 states have internal predecessors, (1496), 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 23:39:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1500 transitions. [2022-03-17 23:39:19,421 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1500 transitions. Word has length 131 [2022-03-17 23:39:19,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:19,422 INFO L478 AbstractCegarLoop]: Abstraction has 1030 states and 1500 transitions. [2022-03-17 23:39:19,422 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:19,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1500 transitions. [2022-03-17 23:39:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:39:19,423 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:19,423 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-17 23:39:19,423 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:39:19,423 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash -763774951, now seen corresponding path program 1 times [2022-03-17 23:39:19,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:19,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234955187] [2022-03-17 23:39:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:19,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:19,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:39:19,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:19,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234955187] [2022-03-17 23:39:19,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234955187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:19,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:19,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:39:19,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360711154] [2022-03-17 23:39:19,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:19,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:39:19,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:19,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:39:19,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:19,510 INFO L87 Difference]: Start difference. First operand 1030 states and 1500 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:22,311 INFO L93 Difference]: Finished difference Result 2542 states and 3721 transitions. [2022-03-17 23:39:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:39:22,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 23:39:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:22,315 INFO L225 Difference]: With dead ends: 2542 [2022-03-17 23:39:22,315 INFO L226 Difference]: Without dead ends: 1540 [2022-03-17 23:39:22,316 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:22,316 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:22,316 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 23:39:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2022-03-17 23:39:22,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1538. [2022-03-17 23:39:22,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1533 states have (on average 1.4651011089367254) internal successors, (2246), 1533 states have internal predecessors, (2246), 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 23:39:22,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2250 transitions. [2022-03-17 23:39:22,338 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2250 transitions. Word has length 133 [2022-03-17 23:39:22,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:22,339 INFO L478 AbstractCegarLoop]: Abstraction has 1538 states and 2250 transitions. [2022-03-17 23:39:22,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:22,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2250 transitions. [2022-03-17 23:39:22,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 23:39:22,340 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:22,341 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-17 23:39:22,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:39:22,341 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:22,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-03-17 23:39:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:22,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892567172] [2022-03-17 23:39:22,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:22,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:22,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 23:39:22,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:22,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892567172] [2022-03-17 23:39:22,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892567172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:22,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:22,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:39:22,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961028842] [2022-03-17 23:39:22,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:22,446 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:39:22,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:39:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:22,447 INFO L87 Difference]: Start difference. First operand 1538 states and 2250 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 23:39:23,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:24,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:24,416 INFO L93 Difference]: Finished difference Result 2050 states and 3004 transitions. [2022-03-17 23:39:24,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:39:24,416 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 134 [2022-03-17 23:39:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:24,421 INFO L225 Difference]: With dead ends: 2050 [2022-03-17 23:39:24,421 INFO L226 Difference]: Without dead ends: 2048 [2022-03-17 23:39:24,421 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:24,422 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:24,422 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-17 23:39:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2022-03-17 23:39:24,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2046. [2022-03-17 23:39:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 2041 states have (on average 1.4683978441940226) internal successors, (2997), 2041 states have internal predecessors, (2997), 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 23:39:24,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3001 transitions. [2022-03-17 23:39:24,474 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3001 transitions. Word has length 134 [2022-03-17 23:39:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:24,475 INFO L478 AbstractCegarLoop]: Abstraction has 2046 states and 3001 transitions. [2022-03-17 23:39:24,475 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 23:39:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3001 transitions. [2022-03-17 23:39:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 23:39:24,476 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:24,477 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:24,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:39:24,477 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:24,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:24,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1380102266, now seen corresponding path program 1 times [2022-03-17 23:39:24,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:24,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473892677] [2022-03-17 23:39:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:24,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:24,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:39:24,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:24,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473892677] [2022-03-17 23:39:24,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473892677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:24,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:24,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:39:24,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020302050] [2022-03-17 23:39:24,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:24,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:39:24,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:39:24,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:24,567 INFO L87 Difference]: Start difference. First operand 2046 states and 3001 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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 23:39:27,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:28,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:28,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:28,855 INFO L93 Difference]: Finished difference Result 4574 states and 6721 transitions. [2022-03-17 23:39:28,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:39:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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 147 [2022-03-17 23:39:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:28,861 INFO L225 Difference]: With dead ends: 4574 [2022-03-17 23:39:28,861 INFO L226 Difference]: Without dead ends: 2556 [2022-03-17 23:39:28,864 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:39:28,866 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:28,867 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 23:39:28,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2022-03-17 23:39:28,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2554. [2022-03-17 23:39:28,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.4617497057669675) internal successors, (3726), 2549 states have internal predecessors, (3726), 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 23:39:28,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3730 transitions. [2022-03-17 23:39:28,919 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3730 transitions. Word has length 147 [2022-03-17 23:39:28,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:28,919 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3730 transitions. [2022-03-17 23:39:28,919 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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 23:39:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3730 transitions. [2022-03-17 23:39:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-17 23:39:28,922 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:28,922 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:28,922 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:39:28,922 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:28,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash 809864280, now seen corresponding path program 1 times [2022-03-17 23:39:28,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:28,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036505456] [2022-03-17 23:39:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:39:29,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:29,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036505456] [2022-03-17 23:39:29,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036505456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:29,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:29,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:29,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319208893] [2022-03-17 23:39:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:29,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:29,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:29,017 INFO L87 Difference]: Start difference. First operand 2554 states and 3730 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:31,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:33,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:33,999 INFO L93 Difference]: Finished difference Result 5404 states and 7866 transitions. [2022-03-17 23:39:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:33,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-17 23:39:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:34,006 INFO L225 Difference]: With dead ends: 5404 [2022-03-17 23:39:34,006 INFO L226 Difference]: Without dead ends: 2878 [2022-03-17 23:39:34,009 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:34,009 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 109 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:34,010 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 378 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:39:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2022-03-17 23:39:34,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2554. [2022-03-17 23:39:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.456257355825814) internal successors, (3712), 2549 states have internal predecessors, (3712), 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 23:39:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3716 transitions. [2022-03-17 23:39:34,078 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3716 transitions. Word has length 164 [2022-03-17 23:39:34,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:34,079 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3716 transitions. [2022-03-17 23:39:34,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3716 transitions. [2022-03-17 23:39:34,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 23:39:34,081 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:34,081 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 23:39:34,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:39:34,082 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:34,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:34,082 INFO L85 PathProgramCache]: Analyzing trace with hash 243838419, now seen corresponding path program 1 times [2022-03-17 23:39:34,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:34,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443036264] [2022-03-17 23:39:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:34,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 23:39:34,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:34,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443036264] [2022-03-17 23:39:34,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443036264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:34,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:34,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 23:39:34,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094578841] [2022-03-17 23:39:34,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:34,400 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:39:34,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:39:34,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:39:34,400 INFO L87 Difference]: Start difference. First operand 2554 states and 3716 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:35,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:37,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:39,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:41,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:43,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:45,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:46,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:46,137 INFO L93 Difference]: Finished difference Result 5101 states and 7424 transitions. [2022-03-17 23:39:46,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:39:46,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-17 23:39:46,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:46,144 INFO L225 Difference]: With dead ends: 5101 [2022-03-17 23:39:46,144 INFO L226 Difference]: Without dead ends: 2554 [2022-03-17 23:39:46,147 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:39:46,147 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:46,148 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 439 Invalid, 5 Unknown, 0 Unchecked, 11.7s Time] [2022-03-17 23:39:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-03-17 23:39:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2554. [2022-03-17 23:39:46,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.4558650451157316) internal successors, (3711), 2549 states have internal predecessors, (3711), 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 23:39:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3715 transitions. [2022-03-17 23:39:46,185 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3715 transitions. Word has length 171 [2022-03-17 23:39:46,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:46,185 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3715 transitions. [2022-03-17 23:39:46,185 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:46,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3715 transitions. [2022-03-17 23:39:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 23:39:46,188 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:46,188 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 23:39:46,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:39:46,188 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:46,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:46,188 INFO L85 PathProgramCache]: Analyzing trace with hash -717786796, now seen corresponding path program 1 times [2022-03-17 23:39:46,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:46,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136525979] [2022-03-17 23:39:46,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:46,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:46,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 174 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:39:46,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:46,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136525979] [2022-03-17 23:39:46,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136525979] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:39:46,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844343884] [2022-03-17 23:39:46,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:46,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:39:46,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:39:46,896 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 23:39:46,899 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 23:39:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:47,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 260 conjunts are in the unsatisfiable core [2022-03-17 23:39:47,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:39:48,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75001 treesize of output 67144 [2022-03-17 23:39:48,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:39:48,240 INFO L356 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2022-03-17 23:39:48,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2741 treesize of output 1016