/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 03:04:13,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:04:13,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:04:13,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 03:04:13,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 03:04:13,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 03:04:13,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 03:04:13,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 03:04:13,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 03:04:13,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 03:04:13,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 03:04:13,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 03:04:13,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 03:04:13,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 03:04:13,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 03:04:13,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 03:04:13,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 03:04:13,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 03:04:13,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 03:04:13,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 03:04:13,534 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 03:04:13,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 03:04:13,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 03:04:13,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 03:04:13,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 03:04:13,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 03:04:13,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:04:13,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:04:13,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:04:13,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 03:04:13,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:04:13,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:04:13,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 03:04:13,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 03:04:13,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 03:04:13,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 03:04:13,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 03:04:13,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 03:04:13,590 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 03:04:13,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:04:13,591 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:04:13,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:04:13,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:04:13,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:04:13,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:04:13,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:04:13,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:04:13,593 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:04:13,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:04:13,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:04:13,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:04:13,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:04:13,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:04:13,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:04:13,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:04:13,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:04:13,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 03:04:13,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 03:04:13,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:04:13,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 03:04:13,595 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 03:04:13,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 03:04:13,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 03:04:13,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:04:13,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:04:13,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:04:13,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:04:13,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:04:13,814 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:04:13,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-20 03:04:13,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778583022/c131ab2a7234478291427c00817dd39a/FLAG61cba2b56 [2022-03-20 03:04:14,327 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:04:14,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-20 03:04:14,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778583022/c131ab2a7234478291427c00817dd39a/FLAG61cba2b56 [2022-03-20 03:04:14,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778583022/c131ab2a7234478291427c00817dd39a [2022-03-20 03:04:14,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:04:14,371 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 03:04:14,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:04:14,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:04:14,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:04:14,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7656d695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14, skipping insertion in model container [2022-03-20 03:04:14,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:04:14,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:04:14,731 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.16.i.cil-1.c[77378,77391] [2022-03-20 03:04:14,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:04:14,763 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:04:14,845 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.16.i.cil-1.c[77378,77391] [2022-03-20 03:04:14,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:04:14,861 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:04:14,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14 WrapperNode [2022-03-20 03:04:14,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:04:14,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:04:14,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:04:14,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:04:14,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:04:14,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:04:14,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:04:14,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:04:14,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (1/1) ... [2022-03-20 03:04:14,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:04:14,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:04:15,000 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) [2022-03-20 03:04:15,024 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 [2022-03-20 03:04:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:04:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:04:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:04:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 03:04:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 03:04:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:04:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 03:04:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 03:04:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 03:04:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 03:04:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:04:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 03:04:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 03:04:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 03:04:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 03:04:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:04:15,223 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:04:15,224 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:04:15,895 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 03:04:16,445 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 03:04:16,445 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 03:04:16,467 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:04:16,473 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:04:16,473 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 03:04:16,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:04:16 BoogieIcfgContainer [2022-03-20 03:04:16,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:04:16,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:04:16,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:04:16,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:04:16,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:04:14" (1/3) ... [2022-03-20 03:04:16,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1288e4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:04:16, skipping insertion in model container [2022-03-20 03:04:16,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:04:14" (2/3) ... [2022-03-20 03:04:16,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1288e4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:04:16, skipping insertion in model container [2022-03-20 03:04:16,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:04:16" (3/3) ... [2022-03-20 03:04:16,485 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-1.c [2022-03-20 03:04:16,489 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:04:16,489 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 03:04:16,536 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:04:16,543 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=PETRI_NET, 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 [2022-03-20 03:04:16,543 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 03:04:16,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 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) [2022-03-20 03:04:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 03:04:16,581 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:16,582 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:16,583 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:16,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash -313091541, now seen corresponding path program 1 times [2022-03-20 03:04:16,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:16,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875895043] [2022-03-20 03:04:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:16,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:17,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:17,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875895043] [2022-03-20 03:04:17,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875895043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:17,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:17,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:17,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613257147] [2022-03-20 03:04:17,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:17,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:17,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:17,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:17,130 INFO L87 Difference]: Start difference. First operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 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 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:19,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:19,121 INFO L93 Difference]: Finished difference Result 453 states and 772 transitions. [2022-03-20 03:04:19,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:19,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 03:04:19,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:19,132 INFO L225 Difference]: With dead ends: 453 [2022-03-20 03:04:19,132 INFO L226 Difference]: Without dead ends: 276 [2022-03-20 03:04:19,135 INFO L912 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 [2022-03-20 03:04:19,138 INFO L913 BasicCegarLoop]: 174 mSDtfsCounter, 168 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:19,138 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 511 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:04:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-03-20 03:04:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 190. [2022-03-20 03:04:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6216216216216217) internal successors, (300), 185 states have internal predecessors, (300), 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) [2022-03-20 03:04:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 304 transitions. [2022-03-20 03:04:19,196 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 304 transitions. Word has length 50 [2022-03-20 03:04:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:19,196 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 304 transitions. [2022-03-20 03:04:19,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:19,197 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 304 transitions. [2022-03-20 03:04:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 03:04:19,202 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:19,202 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:19,203 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:04:19,203 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:19,205 INFO L85 PathProgramCache]: Analyzing trace with hash 25677003, now seen corresponding path program 1 times [2022-03-20 03:04:19,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:19,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19884910] [2022-03-20 03:04:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:19,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:19,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:19,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19884910] [2022-03-20 03:04:19,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19884910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:19,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:19,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:19,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874728864] [2022-03-20 03:04:19,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:19,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:19,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:19,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:19,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:19,386 INFO L87 Difference]: Start difference. First operand 190 states and 304 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:20,895 INFO L93 Difference]: Finished difference Result 393 states and 630 transitions. [2022-03-20 03:04:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:20,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-20 03:04:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:20,899 INFO L225 Difference]: With dead ends: 393 [2022-03-20 03:04:20,899 INFO L226 Difference]: Without dead ends: 218 [2022-03-20 03:04:20,900 INFO L912 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 [2022-03-20 03:04:20,901 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 22 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:20,901 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 529 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-20 03:04:20,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-20 03:04:20,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2022-03-20 03:04:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6275510204081634) internal successors, (319), 196 states have internal predecessors, (319), 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) [2022-03-20 03:04:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 323 transitions. [2022-03-20 03:04:20,913 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 323 transitions. Word has length 51 [2022-03-20 03:04:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:20,913 INFO L478 AbstractCegarLoop]: Abstraction has 201 states and 323 transitions. [2022-03-20 03:04:20,913 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 323 transitions. [2022-03-20 03:04:20,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 03:04:20,914 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:20,914 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:20,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 03:04:20,915 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:20,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:20,919 INFO L85 PathProgramCache]: Analyzing trace with hash 46675411, now seen corresponding path program 1 times [2022-03-20 03:04:20,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:20,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235332012] [2022-03-20 03:04:20,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:20,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:21,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:21,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:21,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235332012] [2022-03-20 03:04:21,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235332012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:21,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:21,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:21,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460048484] [2022-03-20 03:04:21,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:21,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:21,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:21,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:21,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:21,078 INFO L87 Difference]: Start difference. First operand 201 states and 323 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) [2022-03-20 03:04:23,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:23,013 INFO L93 Difference]: Finished difference Result 393 states and 629 transitions. [2022-03-20 03:04:23,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:23,013 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 64 [2022-03-20 03:04:23,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:23,015 INFO L225 Difference]: With dead ends: 393 [2022-03-20 03:04:23,015 INFO L226 Difference]: Without dead ends: 218 [2022-03-20 03:04:23,016 INFO L912 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 [2022-03-20 03:04:23,017 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 24 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:23,017 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 531 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:04:23,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-20 03:04:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2022-03-20 03:04:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6224489795918366) internal successors, (318), 196 states have internal predecessors, (318), 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) [2022-03-20 03:04:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 322 transitions. [2022-03-20 03:04:23,026 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 322 transitions. Word has length 64 [2022-03-20 03:04:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:23,026 INFO L478 AbstractCegarLoop]: Abstraction has 201 states and 322 transitions. [2022-03-20 03:04:23,026 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) [2022-03-20 03:04:23,027 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 322 transitions. [2022-03-20 03:04:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:04:23,028 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:23,028 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:23,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 03:04:23,028 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:23,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:23,029 INFO L85 PathProgramCache]: Analyzing trace with hash -244751261, now seen corresponding path program 1 times [2022-03-20 03:04:23,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:23,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14010907] [2022-03-20 03:04:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:23,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:23,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:23,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:23,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:23,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14010907] [2022-03-20 03:04:23,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14010907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:23,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:23,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:23,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686616263] [2022-03-20 03:04:23,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:23,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:23,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:23,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:23,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:23,145 INFO L87 Difference]: Start difference. First operand 201 states and 322 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) [2022-03-20 03:04:26,050 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 [] [2022-03-20 03:04:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:27,633 INFO L93 Difference]: Finished difference Result 392 states and 627 transitions. [2022-03-20 03:04:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:27,634 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 65 [2022-03-20 03:04:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:27,635 INFO L225 Difference]: With dead ends: 392 [2022-03-20 03:04:27,635 INFO L226 Difference]: Without dead ends: 217 [2022-03-20 03:04:27,636 INFO L912 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 [2022-03-20 03:04:27,636 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 28 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:27,636 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 533 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 03:04:27,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-20 03:04:27,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 201. [2022-03-20 03:04:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6173469387755102) internal successors, (317), 196 states have internal predecessors, (317), 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) [2022-03-20 03:04:27,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 321 transitions. [2022-03-20 03:04:27,643 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 321 transitions. Word has length 65 [2022-03-20 03:04:27,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:27,643 INFO L478 AbstractCegarLoop]: Abstraction has 201 states and 321 transitions. [2022-03-20 03:04:27,643 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) [2022-03-20 03:04:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 321 transitions. [2022-03-20 03:04:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:04:27,644 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:27,644 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:27,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 03:04:27,645 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:27,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1880286641, now seen corresponding path program 1 times [2022-03-20 03:04:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:27,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756151169] [2022-03-20 03:04:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:27,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:27,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:27,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756151169] [2022-03-20 03:04:27,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756151169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:27,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:27,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:27,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285746026] [2022-03-20 03:04:27,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:27,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:27,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:27,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:27,767 INFO L87 Difference]: Start difference. First operand 201 states and 321 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) [2022-03-20 03:04:31,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:31,064 INFO L93 Difference]: Finished difference Result 501 states and 804 transitions. [2022-03-20 03:04:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:31,065 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 65 [2022-03-20 03:04:31,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:31,066 INFO L225 Difference]: With dead ends: 501 [2022-03-20 03:04:31,066 INFO L226 Difference]: Without dead ends: 326 [2022-03-20 03:04:31,067 INFO L912 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 [2022-03-20 03:04:31,068 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:31,068 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 392 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 03:04:31,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-03-20 03:04:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 213. [2022-03-20 03:04:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.6009615384615385) internal successors, (333), 208 states have internal predecessors, (333), 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) [2022-03-20 03:04:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 337 transitions. [2022-03-20 03:04:31,075 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 337 transitions. Word has length 65 [2022-03-20 03:04:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:31,076 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 337 transitions. [2022-03-20 03:04:31,076 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) [2022-03-20 03:04:31,076 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 337 transitions. [2022-03-20 03:04:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:04:31,076 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:31,077 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:31,077 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 03:04:31,077 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:31,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1674813000, now seen corresponding path program 1 times [2022-03-20 03:04:31,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:31,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780315900] [2022-03-20 03:04:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:31,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:31,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:31,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:31,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780315900] [2022-03-20 03:04:31,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780315900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:31,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:31,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:31,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064107753] [2022-03-20 03:04:31,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:31,174 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:31,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:31,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:31,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:31,175 INFO L87 Difference]: Start difference. First operand 213 states and 337 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) [2022-03-20 03:04:32,438 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 [] [2022-03-20 03:04:35,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:35,093 INFO L93 Difference]: Finished difference Result 513 states and 818 transitions. [2022-03-20 03:04:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:35,094 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 65 [2022-03-20 03:04:35,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:35,095 INFO L225 Difference]: With dead ends: 513 [2022-03-20 03:04:35,096 INFO L226 Difference]: Without dead ends: 326 [2022-03-20 03:04:35,096 INFO L912 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 [2022-03-20 03:04:35,097 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 157 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:35,097 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 392 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 03:04:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-03-20 03:04:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 218. [2022-03-20 03:04:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 213 states have (on average 1.596244131455399) internal successors, (340), 213 states have internal predecessors, (340), 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) [2022-03-20 03:04:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 344 transitions. [2022-03-20 03:04:35,104 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 344 transitions. Word has length 65 [2022-03-20 03:04:35,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:35,105 INFO L478 AbstractCegarLoop]: Abstraction has 218 states and 344 transitions. [2022-03-20 03:04:35,105 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) [2022-03-20 03:04:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 344 transitions. [2022-03-20 03:04:35,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:04:35,106 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:35,106 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:35,106 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 03:04:35,107 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:35,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:35,107 INFO L85 PathProgramCache]: Analyzing trace with hash 419547031, now seen corresponding path program 1 times [2022-03-20 03:04:35,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:35,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345025256] [2022-03-20 03:04:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:35,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:35,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:35,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:35,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345025256] [2022-03-20 03:04:35,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345025256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:35,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:35,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:35,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637750455] [2022-03-20 03:04:35,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:35,235 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:35,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:35,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:35,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:35,236 INFO L87 Difference]: Start difference. First operand 218 states and 344 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) [2022-03-20 03:04:37,792 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 [] [2022-03-20 03:04:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:38,319 INFO L93 Difference]: Finished difference Result 517 states and 822 transitions. [2022-03-20 03:04:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:38,320 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 65 [2022-03-20 03:04:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:38,321 INFO L225 Difference]: With dead ends: 517 [2022-03-20 03:04:38,321 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 03:04:38,322 INFO L912 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 [2022-03-20 03:04:38,322 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 155 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:38,323 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:04:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 03:04:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 219. [2022-03-20 03:04:38,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5841121495327102) internal successors, (339), 214 states have internal predecessors, (339), 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) [2022-03-20 03:04:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 343 transitions. [2022-03-20 03:04:38,328 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 343 transitions. Word has length 65 [2022-03-20 03:04:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:38,329 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 343 transitions. [2022-03-20 03:04:38,329 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) [2022-03-20 03:04:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 343 transitions. [2022-03-20 03:04:38,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 03:04:38,329 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:38,330 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:38,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 03:04:38,330 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:38,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1687424074, now seen corresponding path program 1 times [2022-03-20 03:04:38,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:38,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738724715] [2022-03-20 03:04:38,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:38,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:38,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738724715] [2022-03-20 03:04:38,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738724715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:38,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:38,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:38,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000743803] [2022-03-20 03:04:38,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:38,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:38,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:38,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:38,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:38,452 INFO L87 Difference]: Start difference. First operand 219 states and 343 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) [2022-03-20 03:04:39,535 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 [] [2022-03-20 03:04:41,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:41,448 INFO L93 Difference]: Finished difference Result 518 states and 819 transitions. [2022-03-20 03:04:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:41,449 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 66 [2022-03-20 03:04:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:41,450 INFO L225 Difference]: With dead ends: 518 [2022-03-20 03:04:41,450 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 03:04:41,451 INFO L912 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 [2022-03-20 03:04:41,451 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:41,452 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 03:04:41,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 03:04:41,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 219. [2022-03-20 03:04:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5700934579439252) internal successors, (336), 214 states have internal predecessors, (336), 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) [2022-03-20 03:04:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 340 transitions. [2022-03-20 03:04:41,457 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 340 transitions. Word has length 66 [2022-03-20 03:04:41,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:41,457 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 340 transitions. [2022-03-20 03:04:41,457 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) [2022-03-20 03:04:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 340 transitions. [2022-03-20 03:04:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 03:04:41,458 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:41,458 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:41,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 03:04:41,458 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:41,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1170244362, now seen corresponding path program 1 times [2022-03-20 03:04:41,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:41,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510218914] [2022-03-20 03:04:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:41,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:41,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:41,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510218914] [2022-03-20 03:04:41,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510218914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:41,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:41,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:41,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907390130] [2022-03-20 03:04:41,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:41,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:41,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:41,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:41,575 INFO L87 Difference]: Start difference. First operand 219 states and 340 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) [2022-03-20 03:04:43,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:43,741 INFO L93 Difference]: Finished difference Result 425 states and 665 transitions. [2022-03-20 03:04:43,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:43,742 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 67 [2022-03-20 03:04:43,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:43,743 INFO L225 Difference]: With dead ends: 425 [2022-03-20 03:04:43,743 INFO L226 Difference]: Without dead ends: 232 [2022-03-20 03:04:43,743 INFO L912 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 [2022-03-20 03:04:43,744 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 20 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:43,744 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 539 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:04:43,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-03-20 03:04:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219. [2022-03-20 03:04:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5654205607476634) internal successors, (335), 214 states have internal predecessors, (335), 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) [2022-03-20 03:04:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 339 transitions. [2022-03-20 03:04:43,749 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 339 transitions. Word has length 67 [2022-03-20 03:04:43,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:43,749 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 339 transitions. [2022-03-20 03:04:43,749 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) [2022-03-20 03:04:43,749 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 339 transitions. [2022-03-20 03:04:43,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 03:04:43,750 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:43,750 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:43,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 03:04:43,750 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:43,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:43,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1424487003, now seen corresponding path program 1 times [2022-03-20 03:04:43,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:43,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59226960] [2022-03-20 03:04:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:43,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:43,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:43,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:43,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59226960] [2022-03-20 03:04:43,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59226960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:43,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:43,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:43,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435015992] [2022-03-20 03:04:43,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:43,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:43,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:43,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:43,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:43,842 INFO L87 Difference]: Start difference. First operand 219 states and 339 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:46,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:47,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:47,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:47,840 INFO L93 Difference]: Finished difference Result 518 states and 813 transitions. [2022-03-20 03:04:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:47,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-03-20 03:04:47,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:47,842 INFO L225 Difference]: With dead ends: 518 [2022-03-20 03:04:47,842 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 03:04:47,842 INFO L912 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 [2022-03-20 03:04:47,843 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 156 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:47,843 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 03:04:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 03:04:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 219. [2022-03-20 03:04:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5514018691588785) internal successors, (332), 214 states have internal predecessors, (332), 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) [2022-03-20 03:04:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 336 transitions. [2022-03-20 03:04:47,848 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 336 transitions. Word has length 68 [2022-03-20 03:04:47,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:47,848 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 336 transitions. [2022-03-20 03:04:47,849 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 336 transitions. [2022-03-20 03:04:47,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 03:04:47,849 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:47,849 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:47,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 03:04:47,850 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash 57579164, now seen corresponding path program 1 times [2022-03-20 03:04:47,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:47,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281100407] [2022-03-20 03:04:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:47,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:47,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281100407] [2022-03-20 03:04:47,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281100407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:47,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:47,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283790184] [2022-03-20 03:04:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:47,966 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:47,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:47,967 INFO L87 Difference]: Start difference. First operand 219 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:49,846 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 [] [2022-03-20 03:04:51,154 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 [] [2022-03-20 03:04:52,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:52,365 INFO L93 Difference]: Finished difference Result 454 states and 702 transitions. [2022-03-20 03:04:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:52,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-03-20 03:04:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:52,366 INFO L225 Difference]: With dead ends: 454 [2022-03-20 03:04:52,366 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 03:04:52,367 INFO L912 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 [2022-03-20 03:04:52,367 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 29 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:52,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 553 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 03:04:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 03:04:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 241. [2022-03-20 03:04:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.5466101694915255) internal successors, (365), 236 states have internal predecessors, (365), 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) [2022-03-20 03:04:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 369 transitions. [2022-03-20 03:04:52,372 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 369 transitions. Word has length 68 [2022-03-20 03:04:52,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:52,372 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 369 transitions. [2022-03-20 03:04:52,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:52,373 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 369 transitions. [2022-03-20 03:04:52,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 03:04:52,373 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:52,373 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:52,373 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 03:04:52,374 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:52,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:52,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1342285730, now seen corresponding path program 1 times [2022-03-20 03:04:52,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:52,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948757194] [2022-03-20 03:04:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:52,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:52,455 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:04:52,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:52,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948757194] [2022-03-20 03:04:52,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948757194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:52,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:52,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:52,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843309156] [2022-03-20 03:04:52,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:52,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:52,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:52,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:52,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:52,456 INFO L87 Difference]: Start difference. First operand 241 states and 369 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:54,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:54,309 INFO L93 Difference]: Finished difference Result 474 states and 732 transitions. [2022-03-20 03:04:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:54,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-20 03:04:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:54,311 INFO L225 Difference]: With dead ends: 474 [2022-03-20 03:04:54,311 INFO L226 Difference]: Without dead ends: 259 [2022-03-20 03:04:54,311 INFO L912 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 [2022-03-20 03:04:54,312 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 34 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:54,312 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 557 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:04:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-20 03:04:54,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 241. [2022-03-20 03:04:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.5423728813559323) internal successors, (364), 236 states have internal predecessors, (364), 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) [2022-03-20 03:04:54,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 368 transitions. [2022-03-20 03:04:54,317 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 368 transitions. Word has length 81 [2022-03-20 03:04:54,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:54,317 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 368 transitions. [2022-03-20 03:04:54,318 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:54,318 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 368 transitions. [2022-03-20 03:04:54,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 03:04:54,318 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:54,318 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:54,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 03:04:54,319 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1264462964, now seen corresponding path program 1 times [2022-03-20 03:04:54,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:54,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178401809] [2022-03-20 03:04:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:54,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:54,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 03:04:54,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:54,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178401809] [2022-03-20 03:04:54,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178401809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:54,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:54,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:54,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456673678] [2022-03-20 03:04:54,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:54,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:54,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:54,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:54,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:54,414 INFO L87 Difference]: Start difference. First operand 241 states and 368 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) [2022-03-20 03:04:56,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:56,677 INFO L93 Difference]: Finished difference Result 485 states and 746 transitions. [2022-03-20 03:04:56,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:56,678 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 82 [2022-03-20 03:04:56,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:56,679 INFO L225 Difference]: With dead ends: 485 [2022-03-20 03:04:56,679 INFO L226 Difference]: Without dead ends: 270 [2022-03-20 03:04:56,679 INFO L912 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 [2022-03-20 03:04:56,680 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 19 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:56,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 616 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:04:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-03-20 03:04:56,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 257. [2022-03-20 03:04:56,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5357142857142858) internal successors, (387), 252 states have internal predecessors, (387), 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) [2022-03-20 03:04:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 391 transitions. [2022-03-20 03:04:56,686 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 391 transitions. Word has length 82 [2022-03-20 03:04:56,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:56,686 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 391 transitions. [2022-03-20 03:04:56,686 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) [2022-03-20 03:04:56,686 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 391 transitions. [2022-03-20 03:04:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 03:04:56,687 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:56,687 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:56,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 03:04:56,687 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:56,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:56,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1149461745, now seen corresponding path program 1 times [2022-03-20 03:04:56,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:56,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571866372] [2022-03-20 03:04:56,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:56,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:56,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 03:04:56,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:56,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571866372] [2022-03-20 03:04:56,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571866372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:56,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:56,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 03:04:56,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010804432] [2022-03-20 03:04:56,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:56,798 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 03:04:56,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:56,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 03:04:56,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:56,799 INFO L87 Difference]: Start difference. First operand 257 states and 391 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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) [2022-03-20 03:05:00,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:00,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:00,805 INFO L93 Difference]: Finished difference Result 497 states and 764 transitions. [2022-03-20 03:05:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 03:05:00,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 83 [2022-03-20 03:05:00,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:00,806 INFO L225 Difference]: With dead ends: 497 [2022-03-20 03:05:00,807 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 03:05:00,807 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:05:00,808 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 3 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:00,808 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 697 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 03:05:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 03:05:00,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-03-20 03:05:00,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.524904214559387) internal successors, (398), 261 states have internal predecessors, (398), 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) [2022-03-20 03:05:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 402 transitions. [2022-03-20 03:05:00,813 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 402 transitions. Word has length 83 [2022-03-20 03:05:00,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:00,813 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 402 transitions. [2022-03-20 03:05:00,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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) [2022-03-20 03:05:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 402 transitions. [2022-03-20 03:05:00,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 03:05:00,814 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:00,814 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:00,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 03:05:00,814 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:00,815 INFO L85 PathProgramCache]: Analyzing trace with hash -487992470, now seen corresponding path program 1 times [2022-03-20 03:05:00,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:00,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726094737] [2022-03-20 03:05:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:00,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:05:00,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:00,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726094737] [2022-03-20 03:05:00,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726094737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:00,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:00,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:00,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360690372] [2022-03-20 03:05:00,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:00,903 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:00,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:00,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:00,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:00,903 INFO L87 Difference]: Start difference. First operand 266 states and 402 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) [2022-03-20 03:05:02,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:02,964 INFO L93 Difference]: Finished difference Result 523 states and 796 transitions. [2022-03-20 03:05:02,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:02,964 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 85 [2022-03-20 03:05:02,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:02,965 INFO L225 Difference]: With dead ends: 523 [2022-03-20 03:05:02,965 INFO L226 Difference]: Without dead ends: 283 [2022-03-20 03:05:02,966 INFO L912 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 [2022-03-20 03:05:02,966 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 34 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:02,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 559 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 03:05:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-20 03:05:02,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 266. [2022-03-20 03:05:02,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5210727969348659) internal successors, (397), 261 states have internal predecessors, (397), 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) [2022-03-20 03:05:02,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 401 transitions. [2022-03-20 03:05:02,975 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 401 transitions. Word has length 85 [2022-03-20 03:05:02,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:02,975 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 401 transitions. [2022-03-20 03:05:02,975 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) [2022-03-20 03:05:02,976 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 401 transitions. [2022-03-20 03:05:02,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 03:05:02,976 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:02,976 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:02,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 03:05:02,976 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:02,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:02,977 INFO L85 PathProgramCache]: Analyzing trace with hash 345804313, now seen corresponding path program 1 times [2022-03-20 03:05:02,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:02,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845396512] [2022-03-20 03:05:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:02,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:03,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:03,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845396512] [2022-03-20 03:05:03,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845396512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:03,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:03,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:03,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894743712] [2022-03-20 03:05:03,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:03,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:03,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:03,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:03,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:03,127 INFO L87 Difference]: Start difference. First operand 266 states and 401 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) [2022-03-20 03:05:05,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:06,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:06,877 INFO L93 Difference]: Finished difference Result 621 states and 949 transitions. [2022-03-20 03:05:06,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:06,877 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 90 [2022-03-20 03:05:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:06,878 INFO L225 Difference]: With dead ends: 621 [2022-03-20 03:05:06,879 INFO L226 Difference]: Without dead ends: 381 [2022-03-20 03:05:06,879 INFO L912 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 [2022-03-20 03:05:06,880 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 131 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:06,880 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 416 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 03:05:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-20 03:05:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 288. [2022-03-20 03:05:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5547703180212014) internal successors, (440), 283 states have internal predecessors, (440), 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) [2022-03-20 03:05:06,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 444 transitions. [2022-03-20 03:05:06,887 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 444 transitions. Word has length 90 [2022-03-20 03:05:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:06,887 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 444 transitions. [2022-03-20 03:05:06,887 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) [2022-03-20 03:05:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 444 transitions. [2022-03-20 03:05:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 03:05:06,888 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:06,888 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:06,888 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 03:05:06,889 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash -386393460, now seen corresponding path program 1 times [2022-03-20 03:05:06,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:06,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176803068] [2022-03-20 03:05:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:06,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:07,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:07,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176803068] [2022-03-20 03:05:07,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176803068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:07,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:07,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344252377] [2022-03-20 03:05:07,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:07,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:07,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:07,017 INFO L87 Difference]: Start difference. First operand 288 states and 444 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:09,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:09,672 INFO L93 Difference]: Finished difference Result 660 states and 1023 transitions. [2022-03-20 03:05:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:09,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 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 118 [2022-03-20 03:05:09,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:09,674 INFO L225 Difference]: With dead ends: 660 [2022-03-20 03:05:09,674 INFO L226 Difference]: Without dead ends: 398 [2022-03-20 03:05:09,675 INFO L912 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 [2022-03-20 03:05:09,675 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 97 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:09,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 553 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:05:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-03-20 03:05:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 322. [2022-03-20 03:05:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.5615141955835963) internal successors, (495), 317 states have internal predecessors, (495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 499 transitions. [2022-03-20 03:05:09,685 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 499 transitions. Word has length 118 [2022-03-20 03:05:09,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:09,685 INFO L478 AbstractCegarLoop]: Abstraction has 322 states and 499 transitions. [2022-03-20 03:05:09,685 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 499 transitions. [2022-03-20 03:05:09,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 03:05:09,686 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:09,686 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:09,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 03:05:09,686 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:09,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:09,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1522064330, now seen corresponding path program 1 times [2022-03-20 03:05:09,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:09,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531902238] [2022-03-20 03:05:09,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:09,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 03:05:09,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:09,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531902238] [2022-03-20 03:05:09,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531902238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:09,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:09,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:09,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276820321] [2022-03-20 03:05:09,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:09,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:09,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:09,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:09,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:09,824 INFO L87 Difference]: Start difference. First operand 322 states and 499 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) [2022-03-20 03:05:11,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:11,798 INFO L93 Difference]: Finished difference Result 676 states and 1050 transitions. [2022-03-20 03:05:11,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:11,798 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 118 [2022-03-20 03:05:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:11,800 INFO L225 Difference]: With dead ends: 676 [2022-03-20 03:05:11,800 INFO L226 Difference]: Without dead ends: 380 [2022-03-20 03:05:11,800 INFO L912 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 [2022-03-20 03:05:11,801 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 37 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:11,801 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 653 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 03:05:11,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-20 03:05:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 346. [2022-03-20 03:05:11,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5601173020527859) internal successors, (532), 341 states have internal predecessors, (532), 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) [2022-03-20 03:05:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 536 transitions. [2022-03-20 03:05:11,807 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 536 transitions. Word has length 118 [2022-03-20 03:05:11,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:11,807 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 536 transitions. [2022-03-20 03:05:11,807 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) [2022-03-20 03:05:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 536 transitions. [2022-03-20 03:05:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 03:05:11,808 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:11,808 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:11,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 03:05:11,808 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:11,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash 170908093, now seen corresponding path program 1 times [2022-03-20 03:05:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:11,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405500281] [2022-03-20 03:05:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 03:05:11,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:11,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405500281] [2022-03-20 03:05:11,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405500281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:11,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:11,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814708503] [2022-03-20 03:05:11,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:11,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:11,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:11,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:11,897 INFO L87 Difference]: Start difference. First operand 346 states and 536 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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) [2022-03-20 03:05:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:14,122 INFO L93 Difference]: Finished difference Result 673 states and 1052 transitions. [2022-03-20 03:05:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:14,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 03:05:14,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:14,123 INFO L225 Difference]: With dead ends: 673 [2022-03-20 03:05:14,124 INFO L226 Difference]: Without dead ends: 353 [2022-03-20 03:05:14,124 INFO L912 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 [2022-03-20 03:05:14,125 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 30 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:14,125 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 573 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:05:14,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-20 03:05:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 346. [2022-03-20 03:05:14,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5571847507331378) internal successors, (531), 341 states have internal predecessors, (531), 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) [2022-03-20 03:05:14,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 535 transitions. [2022-03-20 03:05:14,131 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 535 transitions. Word has length 123 [2022-03-20 03:05:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:14,131 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 535 transitions. [2022-03-20 03:05:14,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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) [2022-03-20 03:05:14,133 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 535 transitions. [2022-03-20 03:05:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 03:05:14,138 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:14,138 INFO L499 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, 1, 1] [2022-03-20 03:05:14,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 03:05:14,138 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:14,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash 854989334, now seen corresponding path program 1 times [2022-03-20 03:05:14,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:14,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165001172] [2022-03-20 03:05:14,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:14,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:14,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:14,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:14,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165001172] [2022-03-20 03:05:14,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165001172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:14,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:14,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:14,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2750634] [2022-03-20 03:05:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:14,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:14,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:14,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:14,254 INFO L87 Difference]: Start difference. First operand 346 states and 535 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:17,518 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 [] [2022-03-20 03:05:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:17,949 INFO L93 Difference]: Finished difference Result 799 states and 1241 transitions. [2022-03-20 03:05:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:17,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 124 [2022-03-20 03:05:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:17,951 INFO L225 Difference]: With dead ends: 799 [2022-03-20 03:05:17,952 INFO L226 Difference]: Without dead ends: 479 [2022-03-20 03:05:17,952 INFO L912 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 [2022-03-20 03:05:17,953 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 133 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:17,953 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 392 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 03:05:17,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-03-20 03:05:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 383. [2022-03-20 03:05:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5687830687830688) internal successors, (593), 378 states have internal predecessors, (593), 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) [2022-03-20 03:05:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 597 transitions. [2022-03-20 03:05:17,961 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 597 transitions. Word has length 124 [2022-03-20 03:05:17,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:17,962 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 597 transitions. [2022-03-20 03:05:17,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:17,962 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 597 transitions. [2022-03-20 03:05:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-20 03:05:17,963 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:17,963 INFO L499 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, 1, 1] [2022-03-20 03:05:17,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 03:05:17,963 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:17,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:17,964 INFO L85 PathProgramCache]: Analyzing trace with hash 34595066, now seen corresponding path program 1 times [2022-03-20 03:05:17,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:17,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31437445] [2022-03-20 03:05:17,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:17,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:18,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31437445] [2022-03-20 03:05:18,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31437445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:18,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:18,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:18,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642700069] [2022-03-20 03:05:18,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:18,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:18,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:18,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:18,074 INFO L87 Difference]: Start difference. First operand 383 states and 597 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:20,434 INFO L93 Difference]: Finished difference Result 813 states and 1268 transitions. [2022-03-20 03:05:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:20,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-20 03:05:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:20,436 INFO L225 Difference]: With dead ends: 813 [2022-03-20 03:05:20,436 INFO L226 Difference]: Without dead ends: 456 [2022-03-20 03:05:20,437 INFO L912 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 [2022-03-20 03:05:20,437 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 86 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:20,438 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 517 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:05:20,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-20 03:05:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 389. [2022-03-20 03:05:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5703125) internal successors, (603), 384 states have internal predecessors, (603), 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) [2022-03-20 03:05:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 607 transitions. [2022-03-20 03:05:20,444 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 607 transitions. Word has length 125 [2022-03-20 03:05:20,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:20,444 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 607 transitions. [2022-03-20 03:05:20,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:20,444 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 607 transitions. [2022-03-20 03:05:20,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 03:05:20,445 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:20,445 INFO L499 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, 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] [2022-03-20 03:05:20,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 03:05:20,445 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1544410552, now seen corresponding path program 1 times [2022-03-20 03:05:20,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:20,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330906791] [2022-03-20 03:05:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:20,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:20,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:20,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330906791] [2022-03-20 03:05:20,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330906791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:20,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:20,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:20,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805431963] [2022-03-20 03:05:20,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:20,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:20,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:20,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:20,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:20,572 INFO L87 Difference]: Start difference. First operand 389 states and 607 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:22,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:23,183 INFO L93 Difference]: Finished difference Result 817 states and 1275 transitions. [2022-03-20 03:05:23,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:23,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 [2022-03-20 03:05:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:23,185 INFO L225 Difference]: With dead ends: 817 [2022-03-20 03:05:23,185 INFO L226 Difference]: Without dead ends: 454 [2022-03-20 03:05:23,186 INFO L912 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 [2022-03-20 03:05:23,186 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 107 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:23,186 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 519 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:05:23,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-03-20 03:05:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 389. [2022-03-20 03:05:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5677083333333333) internal successors, (602), 384 states have internal predecessors, (602), 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) [2022-03-20 03:05:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 606 transitions. [2022-03-20 03:05:23,192 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 606 transitions. Word has length 131 [2022-03-20 03:05:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:23,193 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 606 transitions. [2022-03-20 03:05:23,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 606 transitions. [2022-03-20 03:05:23,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 03:05:23,193 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:23,194 INFO L499 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, 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] [2022-03-20 03:05:23,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 03:05:23,194 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:23,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1425700550, now seen corresponding path program 1 times [2022-03-20 03:05:23,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:23,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053585674] [2022-03-20 03:05:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:23,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:23,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:23,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053585674] [2022-03-20 03:05:23,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053585674] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:23,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:23,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:23,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207022154] [2022-03-20 03:05:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:23,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:23,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:23,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:23,322 INFO L87 Difference]: Start difference. First operand 389 states and 606 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:25,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:25,287 INFO L93 Difference]: Finished difference Result 843 states and 1313 transitions. [2022-03-20 03:05:25,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:25,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 [2022-03-20 03:05:25,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:25,290 INFO L225 Difference]: With dead ends: 843 [2022-03-20 03:05:25,290 INFO L226 Difference]: Without dead ends: 480 [2022-03-20 03:05:25,291 INFO L912 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 [2022-03-20 03:05:25,291 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 154 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:25,291 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 396 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:05:25,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-03-20 03:05:25,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 389. [2022-03-20 03:05:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5572916666666667) internal successors, (598), 384 states have internal predecessors, (598), 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) [2022-03-20 03:05:25,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 602 transitions. [2022-03-20 03:05:25,298 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 602 transitions. Word has length 131 [2022-03-20 03:05:25,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:25,298 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 602 transitions. [2022-03-20 03:05:25,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:25,299 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 602 transitions. [2022-03-20 03:05:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 03:05:25,299 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:25,299 INFO L499 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, 1] [2022-03-20 03:05:25,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 03:05:25,300 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2005415765, now seen corresponding path program 1 times [2022-03-20 03:05:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:25,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676618774] [2022-03-20 03:05:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:05:25,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:25,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676618774] [2022-03-20 03:05:25,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676618774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:25,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:25,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:25,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66862136] [2022-03-20 03:05:25,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:25,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:25,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:25,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:25,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:25,398 INFO L87 Difference]: Start difference. First operand 389 states and 602 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:27,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:27,919 INFO L93 Difference]: Finished difference Result 809 states and 1252 transitions. [2022-03-20 03:05:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:27,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 03:05:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:27,921 INFO L225 Difference]: With dead ends: 809 [2022-03-20 03:05:27,921 INFO L226 Difference]: Without dead ends: 446 [2022-03-20 03:05:27,922 INFO L912 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 [2022-03-20 03:05:27,922 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 69 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:27,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 527 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:05:27,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-03-20 03:05:27,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 392. [2022-03-20 03:05:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5529715762273901) internal successors, (601), 387 states have internal predecessors, (601), 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) [2022-03-20 03:05:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 605 transitions. [2022-03-20 03:05:27,930 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 605 transitions. Word has length 132 [2022-03-20 03:05:27,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:27,930 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 605 transitions. [2022-03-20 03:05:27,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 605 transitions. [2022-03-20 03:05:27,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-20 03:05:27,932 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:27,932 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:27,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 03:05:27,932 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:27,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1771748352, now seen corresponding path program 1 times [2022-03-20 03:05:27,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:27,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784056893] [2022-03-20 03:05:27,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:27,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:28,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:28,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:28,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784056893] [2022-03-20 03:05:28,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784056893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:28,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:28,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:28,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704391891] [2022-03-20 03:05:28,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:28,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:28,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:28,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:28,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:28,037 INFO L87 Difference]: Start difference. First operand 392 states and 605 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) [2022-03-20 03:05:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:30,819 INFO L93 Difference]: Finished difference Result 802 states and 1241 transitions. [2022-03-20 03:05:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:30,819 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 135 [2022-03-20 03:05:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:30,821 INFO L225 Difference]: With dead ends: 802 [2022-03-20 03:05:30,821 INFO L226 Difference]: Without dead ends: 436 [2022-03-20 03:05:30,822 INFO L912 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 [2022-03-20 03:05:30,822 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 94 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:30,833 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 529 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 03:05:30,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-03-20 03:05:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 392. [2022-03-20 03:05:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.550387596899225) internal successors, (600), 387 states have internal predecessors, (600), 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) [2022-03-20 03:05:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 604 transitions. [2022-03-20 03:05:30,840 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 604 transitions. Word has length 135 [2022-03-20 03:05:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:30,840 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 604 transitions. [2022-03-20 03:05:30,840 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) [2022-03-20 03:05:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 604 transitions. [2022-03-20 03:05:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-20 03:05:30,841 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:30,841 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:30,841 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 03:05:30,841 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1185472130, now seen corresponding path program 1 times [2022-03-20 03:05:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:30,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309176240] [2022-03-20 03:05:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:30,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:30,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:30,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:30,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309176240] [2022-03-20 03:05:30,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309176240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:30,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:30,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:30,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050303940] [2022-03-20 03:05:30,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:30,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:30,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:30,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:30,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:30,935 INFO L87 Difference]: Start difference. First operand 392 states and 604 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) [2022-03-20 03:05:32,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:32,940 INFO L93 Difference]: Finished difference Result 841 states and 1298 transitions. [2022-03-20 03:05:32,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:32,941 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 135 [2022-03-20 03:05:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:32,942 INFO L225 Difference]: With dead ends: 841 [2022-03-20 03:05:32,942 INFO L226 Difference]: Without dead ends: 475 [2022-03-20 03:05:32,943 INFO L912 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 [2022-03-20 03:05:32,943 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 155 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:32,943 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 418 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 03:05:32,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-20 03:05:32,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 392. [2022-03-20 03:05:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5374677002583979) internal successors, (595), 387 states have internal predecessors, (595), 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) [2022-03-20 03:05:32,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 599 transitions. [2022-03-20 03:05:32,950 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 599 transitions. Word has length 135 [2022-03-20 03:05:32,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:32,950 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 599 transitions. [2022-03-20 03:05:32,950 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) [2022-03-20 03:05:32,950 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 599 transitions. [2022-03-20 03:05:32,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 03:05:32,951 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:32,951 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:32,951 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 03:05:32,951 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:32,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:32,951 INFO L85 PathProgramCache]: Analyzing trace with hash 295887547, now seen corresponding path program 1 times [2022-03-20 03:05:32,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:32,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807834897] [2022-03-20 03:05:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:33,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:33,041 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:33,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:33,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807834897] [2022-03-20 03:05:33,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807834897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:33,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:33,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:33,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76277729] [2022-03-20 03:05:33,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:33,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:33,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:33,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:33,042 INFO L87 Difference]: Start difference. First operand 392 states and 599 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:35,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:35,405 INFO L93 Difference]: Finished difference Result 841 states and 1288 transitions. [2022-03-20 03:05:35,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:35,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 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 140 [2022-03-20 03:05:35,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:35,407 INFO L225 Difference]: With dead ends: 841 [2022-03-20 03:05:35,407 INFO L226 Difference]: Without dead ends: 475 [2022-03-20 03:05:35,408 INFO L912 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 [2022-03-20 03:05:35,408 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 144 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:35,409 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 432 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:05:35,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-20 03:05:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 392. [2022-03-20 03:05:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5271317829457365) internal successors, (591), 387 states have internal predecessors, (591), 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) [2022-03-20 03:05:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 595 transitions. [2022-03-20 03:05:35,415 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 595 transitions. Word has length 140 [2022-03-20 03:05:35,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:35,415 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 595 transitions. [2022-03-20 03:05:35,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:35,416 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 595 transitions. [2022-03-20 03:05:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 03:05:35,416 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:35,416 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:35,417 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 03:05:35,417 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:35,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash 267387257, now seen corresponding path program 1 times [2022-03-20 03:05:35,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:35,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496287204] [2022-03-20 03:05:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:35,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:35,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:05:35,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:35,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496287204] [2022-03-20 03:05:35,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496287204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:35,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:35,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:35,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689816053] [2022-03-20 03:05:35,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:35,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:35,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:35,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:35,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:35,517 INFO L87 Difference]: Start difference. First operand 392 states and 595 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:37,666 INFO L93 Difference]: Finished difference Result 917 states and 1404 transitions. [2022-03-20 03:05:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:37,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 140 [2022-03-20 03:05:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:37,668 INFO L225 Difference]: With dead ends: 917 [2022-03-20 03:05:37,668 INFO L226 Difference]: Without dead ends: 551 [2022-03-20 03:05:37,668 INFO L912 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 [2022-03-20 03:05:37,669 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 135 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:37,669 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 430 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:05:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2022-03-20 03:05:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 456. [2022-03-20 03:05:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5299334811529934) internal successors, (690), 451 states have internal predecessors, (690), 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) [2022-03-20 03:05:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 694 transitions. [2022-03-20 03:05:37,677 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 694 transitions. Word has length 140 [2022-03-20 03:05:37,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:37,677 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 694 transitions. [2022-03-20 03:05:37,677 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:37,677 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 694 transitions. [2022-03-20 03:05:37,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:05:37,679 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:37,679 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:37,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 03:05:37,679 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1809742240, now seen corresponding path program 1 times [2022-03-20 03:05:37,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:37,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856244619] [2022-03-20 03:05:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:37,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 03:05:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:37,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856244619] [2022-03-20 03:05:37,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856244619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:37,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:37,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504569140] [2022-03-20 03:05:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:37,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:37,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:37,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:37,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:37,787 INFO L87 Difference]: Start difference. First operand 456 states and 694 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) [2022-03-20 03:05:40,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:40,037 INFO L93 Difference]: Finished difference Result 959 states and 1466 transitions. [2022-03-20 03:05:40,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:40,037 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 145 [2022-03-20 03:05:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:40,039 INFO L225 Difference]: With dead ends: 959 [2022-03-20 03:05:40,039 INFO L226 Difference]: Without dead ends: 529 [2022-03-20 03:05:40,040 INFO L912 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 [2022-03-20 03:05:40,040 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 151 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:40,040 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 438 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:05:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-03-20 03:05:40,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 456. [2022-03-20 03:05:40,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5121951219512195) internal successors, (682), 451 states have internal predecessors, (682), 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) [2022-03-20 03:05:40,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2022-03-20 03:05:40,051 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 145 [2022-03-20 03:05:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:40,051 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2022-03-20 03:05:40,051 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) [2022-03-20 03:05:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2022-03-20 03:05:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:05:40,052 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:40,053 INFO L499 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, 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] [2022-03-20 03:05:40,053 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 03:05:40,053 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:40,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1180410267, now seen corresponding path program 1 times [2022-03-20 03:05:40,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:40,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438954240] [2022-03-20 03:05:40,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:40,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:40,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:40,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438954240] [2022-03-20 03:05:40,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438954240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:40,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:40,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:40,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608207830] [2022-03-20 03:05:40,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:40,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:40,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:40,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:40,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:40,174 INFO L87 Difference]: Start difference. First operand 456 states and 686 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:42,294 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 [] [2022-03-20 03:05:42,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:42,703 INFO L93 Difference]: Finished difference Result 999 states and 1512 transitions. [2022-03-20 03:05:42,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:42,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 03:05:42,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:42,705 INFO L225 Difference]: With dead ends: 999 [2022-03-20 03:05:42,705 INFO L226 Difference]: Without dead ends: 569 [2022-03-20 03:05:42,706 INFO L912 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 [2022-03-20 03:05:42,707 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 131 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:42,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 438 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:05:42,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-03-20 03:05:42,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 486. [2022-03-20 03:05:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.501039501039501) internal successors, (722), 481 states have internal predecessors, (722), 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) [2022-03-20 03:05:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 726 transitions. [2022-03-20 03:05:42,715 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 726 transitions. Word has length 145 [2022-03-20 03:05:42,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:42,715 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 726 transitions. [2022-03-20 03:05:42,715 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 726 transitions. [2022-03-20 03:05:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:05:42,716 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:42,716 INFO L499 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, 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] [2022-03-20 03:05:42,716 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 03:05:42,716 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:42,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:42,717 INFO L85 PathProgramCache]: Analyzing trace with hash 316453884, now seen corresponding path program 1 times [2022-03-20 03:05:42,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:42,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030714620] [2022-03-20 03:05:42,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:42,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:42,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:42,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:42,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030714620] [2022-03-20 03:05:42,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030714620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:42,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:42,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751812042] [2022-03-20 03:05:42,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:42,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:42,845 INFO L87 Difference]: Start difference. First operand 486 states and 726 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:44,994 INFO L93 Difference]: Finished difference Result 978 states and 1469 transitions. [2022-03-20 03:05:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 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 146 [2022-03-20 03:05:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:44,996 INFO L225 Difference]: With dead ends: 978 [2022-03-20 03:05:44,996 INFO L226 Difference]: Without dead ends: 518 [2022-03-20 03:05:44,997 INFO L912 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 [2022-03-20 03:05:44,997 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 66 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:44,998 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 561 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:05:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-20 03:05:45,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 486. [2022-03-20 03:05:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.498960498960499) internal successors, (721), 481 states have internal predecessors, (721), 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) [2022-03-20 03:05:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 725 transitions. [2022-03-20 03:05:45,005 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 725 transitions. Word has length 146 [2022-03-20 03:05:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:45,005 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 725 transitions. [2022-03-20 03:05:45,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 725 transitions. [2022-03-20 03:05:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 03:05:45,007 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:45,007 INFO L499 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] [2022-03-20 03:05:45,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 03:05:45,007 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:45,007 INFO L85 PathProgramCache]: Analyzing trace with hash -520108691, now seen corresponding path program 1 times [2022-03-20 03:05:45,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:45,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686821181] [2022-03-20 03:05:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:45,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 03:05:45,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:45,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686821181] [2022-03-20 03:05:45,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686821181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:45,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:45,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:05:45,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952217081] [2022-03-20 03:05:45,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:45,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:05:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:05:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:05:45,110 INFO L87 Difference]: Start difference. First operand 486 states and 725 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:46,955 INFO L93 Difference]: Finished difference Result 1401 states and 2109 transitions. [2022-03-20 03:05:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:05:46,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 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 [2022-03-20 03:05:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:46,958 INFO L225 Difference]: With dead ends: 1401 [2022-03-20 03:05:46,958 INFO L226 Difference]: Without dead ends: 941 [2022-03-20 03:05:46,959 INFO L912 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 [2022-03-20 03:05:46,959 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 147 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:46,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 445 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:05:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-03-20 03:05:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2022-03-20 03:05:46,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.4892933618843682) internal successors, (1391), 934 states have internal predecessors, (1391), 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) [2022-03-20 03:05:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1395 transitions. [2022-03-20 03:05:46,993 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1395 transitions. Word has length 147 [2022-03-20 03:05:46,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:46,994 INFO L478 AbstractCegarLoop]: Abstraction has 939 states and 1395 transitions. [2022-03-20 03:05:46,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:46,994 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1395 transitions. [2022-03-20 03:05:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 03:05:46,995 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:46,996 INFO L499 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] [2022-03-20 03:05:46,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 03:05:46,996 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash -96461969, now seen corresponding path program 1 times [2022-03-20 03:05:46,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:46,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292826892] [2022-03-20 03:05:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:47,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-20 03:05:47,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:47,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292826892] [2022-03-20 03:05:47,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292826892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:47,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:47,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:47,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541159072] [2022-03-20 03:05:47,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:47,090 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:47,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:47,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:47,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:47,091 INFO L87 Difference]: Start difference. First operand 939 states and 1395 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:49,737 INFO L93 Difference]: Finished difference Result 1931 states and 2872 transitions. [2022-03-20 03:05:49,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:49,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 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 [2022-03-20 03:05:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:49,740 INFO L225 Difference]: With dead ends: 1931 [2022-03-20 03:05:49,740 INFO L226 Difference]: Without dead ends: 1018 [2022-03-20 03:05:49,742 INFO L912 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 [2022-03-20 03:05:49,742 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 29 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:49,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 637 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:05:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2022-03-20 03:05:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 991. [2022-03-20 03:05:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 986 states have (on average 1.4858012170385395) internal successors, (1465), 986 states have internal predecessors, (1465), 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) [2022-03-20 03:05:49,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1469 transitions. [2022-03-20 03:05:49,756 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1469 transitions. Word has length 147 [2022-03-20 03:05:49,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:49,756 INFO L478 AbstractCegarLoop]: Abstraction has 991 states and 1469 transitions. [2022-03-20 03:05:49,756 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:49,756 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1469 transitions. [2022-03-20 03:05:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 03:05:49,758 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:49,758 INFO L499 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:49,758 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 03:05:49,758 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:49,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:49,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1399952866, now seen corresponding path program 1 times [2022-03-20 03:05:49,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:49,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606812729] [2022-03-20 03:05:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:49,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:49,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:49,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:49,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606812729] [2022-03-20 03:05:49,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606812729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:49,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:49,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:49,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930677562] [2022-03-20 03:05:49,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:49,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:49,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:49,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:49,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:49,857 INFO L87 Difference]: Start difference. First operand 991 states and 1469 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) [2022-03-20 03:05:51,864 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 [] [2022-03-20 03:05:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:52,342 INFO L93 Difference]: Finished difference Result 2177 states and 3226 transitions. [2022-03-20 03:05:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:52,342 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 149 [2022-03-20 03:05:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:52,346 INFO L225 Difference]: With dead ends: 2177 [2022-03-20 03:05:52,346 INFO L226 Difference]: Without dead ends: 1212 [2022-03-20 03:05:52,347 INFO L912 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 [2022-03-20 03:05:52,347 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 133 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:52,347 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 438 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:05:52,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-03-20 03:05:52,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1047. [2022-03-20 03:05:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.4731285988483684) internal successors, (1535), 1042 states have internal predecessors, (1535), 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) [2022-03-20 03:05:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1539 transitions. [2022-03-20 03:05:52,363 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1539 transitions. Word has length 149 [2022-03-20 03:05:52,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:52,363 INFO L478 AbstractCegarLoop]: Abstraction has 1047 states and 1539 transitions. [2022-03-20 03:05:52,364 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) [2022-03-20 03:05:52,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1539 transitions. [2022-03-20 03:05:52,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 03:05:52,365 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:52,365 INFO L499 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:52,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 03:05:52,366 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:52,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:52,366 INFO L85 PathProgramCache]: Analyzing trace with hash 112372575, now seen corresponding path program 1 times [2022-03-20 03:05:52,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:52,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484893399] [2022-03-20 03:05:52,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:52,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:52,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:05:52,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:52,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484893399] [2022-03-20 03:05:52,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484893399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:52,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:52,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:52,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062038122] [2022-03-20 03:05:52,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:52,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:52,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:52,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:52,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:52,460 INFO L87 Difference]: Start difference. First operand 1047 states and 1539 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:55,759 INFO L93 Difference]: Finished difference Result 2209 states and 3244 transitions. [2022-03-20 03:05:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:55,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 150 [2022-03-20 03:05:55,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:55,763 INFO L225 Difference]: With dead ends: 2209 [2022-03-20 03:05:55,763 INFO L226 Difference]: Without dead ends: 1188 [2022-03-20 03:05:55,764 INFO L912 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 [2022-03-20 03:05:55,765 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 132 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:55,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 03:05:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-03-20 03:05:55,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1047. [2022-03-20 03:05:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.4596928982725528) internal successors, (1521), 1042 states have internal predecessors, (1521), 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) [2022-03-20 03:05:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1525 transitions. [2022-03-20 03:05:55,780 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1525 transitions. Word has length 150 [2022-03-20 03:05:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:55,781 INFO L478 AbstractCegarLoop]: Abstraction has 1047 states and 1525 transitions. [2022-03-20 03:05:55,781 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:55,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1525 transitions. [2022-03-20 03:05:55,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 03:05:55,798 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:55,798 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:55,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 03:05:55,799 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:55,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:55,799 INFO L85 PathProgramCache]: Analyzing trace with hash -572780030, now seen corresponding path program 1 times [2022-03-20 03:05:55,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:55,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958720624] [2022-03-20 03:05:55,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:55,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 03:05:55,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:55,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958720624] [2022-03-20 03:05:55,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958720624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:55,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:55,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:55,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578788637] [2022-03-20 03:05:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:55,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:55,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:55,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:55,912 INFO L87 Difference]: Start difference. First operand 1047 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:58,674 INFO L93 Difference]: Finished difference Result 2209 states and 3216 transitions. [2022-03-20 03:05:58,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:58,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 03:05:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:58,678 INFO L225 Difference]: With dead ends: 2209 [2022-03-20 03:05:58,678 INFO L226 Difference]: Without dead ends: 1188 [2022-03-20 03:05:58,679 INFO L912 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 [2022-03-20 03:05:58,680 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 134 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:58,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:05:58,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-03-20 03:05:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1047. [2022-03-20 03:05:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.444337811900192) internal successors, (1505), 1042 states have internal predecessors, (1505), 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) [2022-03-20 03:05:58,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1509 transitions. [2022-03-20 03:05:58,695 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1509 transitions. Word has length 153 [2022-03-20 03:05:58,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:58,695 INFO L478 AbstractCegarLoop]: Abstraction has 1047 states and 1509 transitions. [2022-03-20 03:05:58,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:58,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1509 transitions. [2022-03-20 03:05:58,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 03:05:58,697 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:58,697 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:58,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 03:05:58,697 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:58,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:58,697 INFO L85 PathProgramCache]: Analyzing trace with hash -776599005, now seen corresponding path program 1 times [2022-03-20 03:05:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:58,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363535557] [2022-03-20 03:05:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:58,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 03:05:58,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:58,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363535557] [2022-03-20 03:05:58,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363535557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:58,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:58,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257706754] [2022-03-20 03:05:58,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:58,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:58,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:58,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:58,786 INFO L87 Difference]: Start difference. First operand 1047 states and 1509 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) [2022-03-20 03:06:00,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:01,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:01,109 INFO L93 Difference]: Finished difference Result 2111 states and 3043 transitions. [2022-03-20 03:06:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:01,110 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 154 [2022-03-20 03:06:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:01,113 INFO L225 Difference]: With dead ends: 2111 [2022-03-20 03:06:01,113 INFO L226 Difference]: Without dead ends: 1090 [2022-03-20 03:06:01,114 INFO L912 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 [2022-03-20 03:06:01,114 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 56 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:01,115 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 585 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:06:01,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2022-03-20 03:06:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1047. [2022-03-20 03:06:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.4424184261036468) internal successors, (1503), 1042 states have internal predecessors, (1503), 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) [2022-03-20 03:06:01,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1507 transitions. [2022-03-20 03:06:01,129 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1507 transitions. Word has length 154 [2022-03-20 03:06:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:01,129 INFO L478 AbstractCegarLoop]: Abstraction has 1047 states and 1507 transitions. [2022-03-20 03:06:01,129 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) [2022-03-20 03:06:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1507 transitions. [2022-03-20 03:06:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 03:06:01,131 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:01,131 INFO L499 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, 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] [2022-03-20 03:06:01,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 03:06:01,131 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:01,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:01,131 INFO L85 PathProgramCache]: Analyzing trace with hash 801381092, now seen corresponding path program 1 times [2022-03-20 03:06:01,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:01,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293111254] [2022-03-20 03:06:01,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:01,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 03:06:01,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:01,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293111254] [2022-03-20 03:06:01,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293111254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:01,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:01,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:01,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159396823] [2022-03-20 03:06:01,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:01,218 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:01,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:01,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:01,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:01,218 INFO L87 Difference]: Start difference. First operand 1047 states and 1507 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:02,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:04,176 INFO L93 Difference]: Finished difference Result 2289 states and 3298 transitions. [2022-03-20 03:06:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 157 [2022-03-20 03:06:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:04,180 INFO L225 Difference]: With dead ends: 2289 [2022-03-20 03:06:04,180 INFO L226 Difference]: Without dead ends: 1268 [2022-03-20 03:06:04,182 INFO L912 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 [2022-03-20 03:06:04,182 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 127 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:04,182 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:06:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-03-20 03:06:04,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1113. [2022-03-20 03:06:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1108 states have (on average 1.4359205776173285) internal successors, (1591), 1108 states have internal predecessors, (1591), 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) [2022-03-20 03:06:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1595 transitions. [2022-03-20 03:06:04,218 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1595 transitions. Word has length 157 [2022-03-20 03:06:04,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:04,218 INFO L478 AbstractCegarLoop]: Abstraction has 1113 states and 1595 transitions. [2022-03-20 03:06:04,218 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:04,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1595 transitions. [2022-03-20 03:06:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 03:06:04,220 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:04,220 INFO L499 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, 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] [2022-03-20 03:06:04,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 03:06:04,220 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:04,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:04,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2121992331, now seen corresponding path program 1 times [2022-03-20 03:06:04,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:04,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465625807] [2022-03-20 03:06:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:04,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:04,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 03:06:04,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:04,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465625807] [2022-03-20 03:06:04,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465625807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:04,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:04,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:04,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187104602] [2022-03-20 03:06:04,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:04,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:04,317 INFO L87 Difference]: Start difference. First operand 1113 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:05,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:07,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:07,209 INFO L93 Difference]: Finished difference Result 2421 states and 3470 transitions. [2022-03-20 03:06:07,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:07,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 157 [2022-03-20 03:06:07,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:07,213 INFO L225 Difference]: With dead ends: 2421 [2022-03-20 03:06:07,213 INFO L226 Difference]: Without dead ends: 1334 [2022-03-20 03:06:07,214 INFO L912 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 [2022-03-20 03:06:07,215 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 125 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:07,215 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:06:07,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-03-20 03:06:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1183. [2022-03-20 03:06:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1178 states have (on average 1.4286926994906621) internal successors, (1683), 1178 states have internal predecessors, (1683), 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) [2022-03-20 03:06:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1687 transitions. [2022-03-20 03:06:07,232 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1687 transitions. Word has length 157 [2022-03-20 03:06:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:07,232 INFO L478 AbstractCegarLoop]: Abstraction has 1183 states and 1687 transitions. [2022-03-20 03:06:07,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1687 transitions. [2022-03-20 03:06:07,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 03:06:07,234 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:07,234 INFO L499 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, 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] [2022-03-20 03:06:07,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 03:06:07,235 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:07,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:07,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2054578624, now seen corresponding path program 1 times [2022-03-20 03:06:07,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:07,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314366013] [2022-03-20 03:06:07,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:07,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 03:06:07,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314366013] [2022-03-20 03:06:07,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314366013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:07,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:07,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350061466] [2022-03-20 03:06:07,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:07,355 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:07,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:07,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:07,355 INFO L87 Difference]: Start difference. First operand 1183 states and 1687 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:09,007 INFO L93 Difference]: Finished difference Result 2481 states and 3540 transitions. [2022-03-20 03:06:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:09,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 158 [2022-03-20 03:06:09,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:09,010 INFO L225 Difference]: With dead ends: 2481 [2022-03-20 03:06:09,010 INFO L226 Difference]: Without dead ends: 1324 [2022-03-20 03:06:09,012 INFO L912 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 [2022-03-20 03:06:09,012 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 126 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:09,012 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 416 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 03:06:09,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-03-20 03:06:09,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1183. [2022-03-20 03:06:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1178 states have (on average 1.4202037351443124) internal successors, (1673), 1178 states have internal predecessors, (1673), 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) [2022-03-20 03:06:09,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1677 transitions. [2022-03-20 03:06:09,029 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1677 transitions. Word has length 158 [2022-03-20 03:06:09,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:09,029 INFO L478 AbstractCegarLoop]: Abstraction has 1183 states and 1677 transitions. [2022-03-20 03:06:09,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:09,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1677 transitions. [2022-03-20 03:06:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 03:06:09,031 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:09,032 INFO L499 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, 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] [2022-03-20 03:06:09,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 03:06:09,032 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:09,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:09,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1829388721, now seen corresponding path program 1 times [2022-03-20 03:06:09,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:09,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034903819] [2022-03-20 03:06:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:09,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:09,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:09,126 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 03:06:09,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:09,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034903819] [2022-03-20 03:06:09,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034903819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:09,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:09,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:09,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7894513] [2022-03-20 03:06:09,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:09,126 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:09,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:09,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:09,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:09,127 INFO L87 Difference]: Start difference. First operand 1183 states and 1677 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:10,407 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 [] [2022-03-20 03:06:11,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:11,750 INFO L93 Difference]: Finished difference Result 2365 states and 3356 transitions. [2022-03-20 03:06:11,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:11,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-20 03:06:11,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:11,753 INFO L225 Difference]: With dead ends: 2365 [2022-03-20 03:06:11,753 INFO L226 Difference]: Without dead ends: 1208 [2022-03-20 03:06:11,754 INFO L912 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 [2022-03-20 03:06:11,755 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 33 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:11,755 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 591 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:06:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-03-20 03:06:11,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1183. [2022-03-20 03:06:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1178 states have (on average 1.4185059422750423) internal successors, (1671), 1178 states have internal predecessors, (1671), 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) [2022-03-20 03:06:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1675 transitions. [2022-03-20 03:06:11,770 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1675 transitions. Word has length 158 [2022-03-20 03:06:11,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:11,770 INFO L478 AbstractCegarLoop]: Abstraction has 1183 states and 1675 transitions. [2022-03-20 03:06:11,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1675 transitions. [2022-03-20 03:06:11,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-20 03:06:11,772 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:11,772 INFO L499 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, 1, 1] [2022-03-20 03:06:11,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 03:06:11,772 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:11,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:11,773 INFO L85 PathProgramCache]: Analyzing trace with hash -20131376, now seen corresponding path program 1 times [2022-03-20 03:06:11,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:11,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228818545] [2022-03-20 03:06:11,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:11,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-20 03:06:11,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:11,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228818545] [2022-03-20 03:06:11,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228818545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:11,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:11,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:06:11,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379948628] [2022-03-20 03:06:11,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:11,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:06:11,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:06:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:06:11,852 INFO L87 Difference]: Start difference. First operand 1183 states and 1675 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 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) [2022-03-20 03:06:13,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:13,601 INFO L93 Difference]: Finished difference Result 2367 states and 3357 transitions. [2022-03-20 03:06:13,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:06:13,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 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 166 [2022-03-20 03:06:13,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:13,605 INFO L225 Difference]: With dead ends: 2367 [2022-03-20 03:06:13,605 INFO L226 Difference]: Without dead ends: 1210 [2022-03-20 03:06:13,606 INFO L912 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 [2022-03-20 03:06:13,607 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:13,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 433 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 03:06:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-03-20 03:06:13,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2022-03-20 03:06:13,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1205 states have (on average 1.4157676348547719) internal successors, (1706), 1205 states have internal predecessors, (1706), 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) [2022-03-20 03:06:13,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1710 transitions. [2022-03-20 03:06:13,623 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1710 transitions. Word has length 166 [2022-03-20 03:06:13,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:13,623 INFO L478 AbstractCegarLoop]: Abstraction has 1210 states and 1710 transitions. [2022-03-20 03:06:13,624 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 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) [2022-03-20 03:06:13,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1710 transitions. [2022-03-20 03:06:13,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-20 03:06:13,625 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:13,625 INFO L499 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, 1, 1] [2022-03-20 03:06:13,625 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 03:06:13,625 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:13,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:13,626 INFO L85 PathProgramCache]: Analyzing trace with hash 390478990, now seen corresponding path program 1 times [2022-03-20 03:06:13,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:13,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126615197] [2022-03-20 03:06:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:13,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-20 03:06:13,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:13,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126615197] [2022-03-20 03:06:13,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126615197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:13,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:13,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:06:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438422038] [2022-03-20 03:06:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:13,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:06:13,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:06:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:06:13,721 INFO L87 Difference]: Start difference. First operand 1210 states and 1710 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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) [2022-03-20 03:06:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:14,852 INFO L93 Difference]: Finished difference Result 2396 states and 3393 transitions. [2022-03-20 03:06:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:06:14,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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 166 [2022-03-20 03:06:14,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:14,856 INFO L225 Difference]: With dead ends: 2396 [2022-03-20 03:06:14,856 INFO L226 Difference]: Without dead ends: 1212 [2022-03-20 03:06:14,857 INFO L912 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 [2022-03-20 03:06:14,858 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:14,858 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 412 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-20 03:06:14,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-03-20 03:06:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1212. [2022-03-20 03:06:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1207 states have (on average 1.4150787075393538) internal successors, (1708), 1207 states have internal predecessors, (1708), 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) [2022-03-20 03:06:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1712 transitions. [2022-03-20 03:06:14,875 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1712 transitions. Word has length 166 [2022-03-20 03:06:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:14,875 INFO L478 AbstractCegarLoop]: Abstraction has 1212 states and 1712 transitions. [2022-03-20 03:06:14,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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) [2022-03-20 03:06:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1712 transitions. [2022-03-20 03:06:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 03:06:14,877 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:14,877 INFO L499 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, 1, 1, 1, 1] [2022-03-20 03:06:14,877 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 03:06:14,877 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:14,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:14,877 INFO L85 PathProgramCache]: Analyzing trace with hash -766423987, now seen corresponding path program 1 times [2022-03-20 03:06:14,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:14,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378712201] [2022-03-20 03:06:14,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:14,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:06:14,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:14,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378712201] [2022-03-20 03:06:14,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378712201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:14,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:14,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:14,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921645270] [2022-03-20 03:06:14,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:14,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:14,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:14,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:14,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:14,971 INFO L87 Difference]: Start difference. First operand 1212 states and 1712 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:16,127 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 [] [2022-03-20 03:06:17,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:17,790 INFO L93 Difference]: Finished difference Result 2534 states and 3579 transitions. [2022-03-20 03:06:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:17,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 168 [2022-03-20 03:06:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:17,793 INFO L225 Difference]: With dead ends: 2534 [2022-03-20 03:06:17,793 INFO L226 Difference]: Without dead ends: 1350 [2022-03-20 03:06:17,795 INFO L912 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 [2022-03-20 03:06:17,795 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 52 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:17,796 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 634 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 03:06:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2022-03-20 03:06:17,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1288. [2022-03-20 03:06:17,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1283 states have (on average 1.4123148869836322) internal successors, (1812), 1283 states have internal predecessors, (1812), 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) [2022-03-20 03:06:17,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1816 transitions. [2022-03-20 03:06:17,824 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1816 transitions. Word has length 168 [2022-03-20 03:06:17,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:17,824 INFO L478 AbstractCegarLoop]: Abstraction has 1288 states and 1816 transitions. [2022-03-20 03:06:17,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:17,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1816 transitions. [2022-03-20 03:06:17,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-20 03:06:17,826 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:17,826 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:17,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 03:06:17,826 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:17,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -961438731, now seen corresponding path program 1 times [2022-03-20 03:06:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:17,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125757627] [2022-03-20 03:06:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-20 03:06:17,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:17,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125757627] [2022-03-20 03:06:17,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125757627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:17,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:17,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678325282] [2022-03-20 03:06:17,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:17,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:17,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:17,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:17,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:17,940 INFO L87 Difference]: Start difference. First operand 1288 states and 1816 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:20,427 INFO L93 Difference]: Finished difference Result 2592 states and 3663 transitions. [2022-03-20 03:06:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:20,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 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 175 [2022-03-20 03:06:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:20,430 INFO L225 Difference]: With dead ends: 2592 [2022-03-20 03:06:20,430 INFO L226 Difference]: Without dead ends: 1332 [2022-03-20 03:06:20,431 INFO L912 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 [2022-03-20 03:06:20,432 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 39 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:20,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 620 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:06:20,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2022-03-20 03:06:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1288. [2022-03-20 03:06:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1283 states have (on average 1.4107560405300077) internal successors, (1810), 1283 states have internal predecessors, (1810), 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) [2022-03-20 03:06:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1814 transitions. [2022-03-20 03:06:20,450 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1814 transitions. Word has length 175 [2022-03-20 03:06:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:20,450 INFO L478 AbstractCegarLoop]: Abstraction has 1288 states and 1814 transitions. [2022-03-20 03:06:20,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:20,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1814 transitions. [2022-03-20 03:06:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-20 03:06:20,452 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:20,452 INFO L499 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, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:20,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 03:06:20,452 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:20,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1432266785, now seen corresponding path program 1 times [2022-03-20 03:06:20,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:20,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653306005] [2022-03-20 03:06:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:20,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 03:06:20,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:20,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653306005] [2022-03-20 03:06:20,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653306005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:20,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:20,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 03:06:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326005442] [2022-03-20 03:06:20,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:20,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 03:06:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:20,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 03:06:20,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:06:20,803 INFO L87 Difference]: Start difference. First operand 1288 states and 1814 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-03-20 03:06:23,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:23,961 INFO L93 Difference]: Finished difference Result 2569 states and 3620 transitions. [2022-03-20 03:06:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:06:23,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 177 [2022-03-20 03:06:23,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:23,964 INFO L225 Difference]: With dead ends: 2569 [2022-03-20 03:06:23,964 INFO L226 Difference]: Without dead ends: 1288 [2022-03-20 03:06:23,966 INFO L912 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 [2022-03-20 03:06:23,966 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:23,966 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 922 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:06:23,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-03-20 03:06:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1288. [2022-03-20 03:06:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1283 states have (on average 1.4099766173031956) internal successors, (1809), 1283 states have internal predecessors, (1809), 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) [2022-03-20 03:06:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1813 transitions. [2022-03-20 03:06:23,983 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1813 transitions. Word has length 177 [2022-03-20 03:06:23,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:23,983 INFO L478 AbstractCegarLoop]: Abstraction has 1288 states and 1813 transitions. [2022-03-20 03:06:23,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-03-20 03:06:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1813 transitions. [2022-03-20 03:06:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-20 03:06:23,985 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:23,985 INFO L499 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, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:23,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 03:06:23,985 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:23,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2080859555, now seen corresponding path program 1 times [2022-03-20 03:06:23,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:23,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752044043] [2022-03-20 03:06:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:23,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-20 03:06:24,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:24,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752044043] [2022-03-20 03:06:24,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752044043] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:06:24,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115702954] [2022-03-20 03:06:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:24,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:06:24,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:06:24,642 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) [2022-03-20 03:06:24,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 03:06:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:25,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 258 conjunts are in the unsatisfiable core [2022-03-20 03:06:25,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:06:25,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:25,890 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 46279 treesize of output 42022 [2022-03-20 03:06:27,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:27,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:27,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:27,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:27,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:27,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:27,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:29,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:35,224 INFO L356 Elim1Store]: treesize reduction 313, result has 2.2 percent of original size [2022-03-20 03:06:35,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 22 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 385256243707 treesize of output 124405138202