/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:25:15,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:25:15,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:25:15,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:25:15,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:25:15,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:25:15,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:25:15,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:25:15,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:25:15,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:25:15,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:25:15,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:25:15,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:25:15,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:25:15,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:25:15,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:25:15,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:25:15,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:25:15,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:25:15,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:25:15,663 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:25:15,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:25:15,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:25:15,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:25:15,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:25:15,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:25:15,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:25:15,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:25:15,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:25:15,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:25:15,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:25:15,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:25:15,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:25:15,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:25:15,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:25:15,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:25:15,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:25:15,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:25:15,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:25:15,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:25:15,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:25:15,721 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:25:15,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:25:15,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:25:15,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:25:15,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:25:15,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:25:15,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:25:15,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:25:15,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:25:15,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:25:15,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:25:15,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:25:15,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:25:15,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:25:15,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:25:15,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:25:15,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:25:15,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:25:15,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:25:15,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:25:15,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:25:15,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:25:15,725 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:25:15,726 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:25:15,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:25:15,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:25:15,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:25:15,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:25:15,927 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:25:15,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-17 23:25:15,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1770c10c7/aca855ae9e9b484eb7ea760972c0e9a5/FLAG499155bf5 [2022-03-17 23:25:16,401 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:25:16,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-17 23:25:16,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1770c10c7/aca855ae9e9b484eb7ea760972c0e9a5/FLAG499155bf5 [2022-03-17 23:25:16,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1770c10c7/aca855ae9e9b484eb7ea760972c0e9a5 [2022-03-17 23:25:16,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:25:16,747 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:25:16,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:25:16,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:25:16,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:25:16,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:25:16" (1/1) ... [2022-03-17 23:25:16,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16fb7672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:16, skipping insertion in model container [2022-03-17 23:25:16,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:25:16" (1/1) ... [2022-03-17 23:25:16,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:25:16,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:25:17,188 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.02.i.cil-2.c[72502,72515] [2022-03-17 23:25:17,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:25:17,207 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:25:17,312 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.02.i.cil-2.c[72502,72515] [2022-03-17 23:25:17,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:25:17,339 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:25:17,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17 WrapperNode [2022-03-17 23:25:17,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:25:17,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:25:17,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:25:17,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:25:17,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:25:17,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:25:17,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:25:17,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:25:17,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (1/1) ... [2022-03-17 23:25:17,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:25:17,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:25:17,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 23:25:17,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 23:25:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:25:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:25:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:25:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:25:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:25:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:25:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:25:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:25:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:25:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:25:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:25:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:25:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:25:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:25:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:25:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:25:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:25:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:25:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:25:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:25:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:25:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:25:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:25:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:25:17,689 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:25:17,691 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:25:20,064 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:25:20,525 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:25:20,525 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:25:20,544 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:25:20,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:25:20,554 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:25:20,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:25:20 BoogieIcfgContainer [2022-03-17 23:25:20,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:25:20,557 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:25:20,557 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:25:20,558 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:25:20,561 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:25:20" (1/1) ... [2022-03-17 23:25:20,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:25:20 BasicIcfg [2022-03-17 23:25:20,611 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:25:20,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:25:20,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:25:20,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:25:20,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:25:16" (1/4) ... [2022-03-17 23:25:20,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d171c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:25:20, skipping insertion in model container [2022-03-17 23:25:20,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:17" (2/4) ... [2022-03-17 23:25:20,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d171c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:25:20, skipping insertion in model container [2022-03-17 23:25:20,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:25:20" (3/4) ... [2022-03-17 23:25:20,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d171c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:25:20, skipping insertion in model container [2022-03-17 23:25:20,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:25:20" (4/4) ... [2022-03-17 23:25:20,619 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-2.cqvasr [2022-03-17 23:25:20,624 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:25:20,624 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:25:20,666 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:25:20,671 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 23:25:20,671 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:25:20,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 23:25:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 23:25:20,695 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:20,695 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:20,696 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:20,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1355699347, now seen corresponding path program 1 times [2022-03-17 23:25:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:20,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051140245] [2022-03-17 23:25:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:20,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:21,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:21,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051140245] [2022-03-17 23:25:21,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051140245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:21,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:21,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:21,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421883995] [2022-03-17 23:25:21,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:21,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:21,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:21,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:21,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:21,326 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:24,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:26,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:28,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:28,871 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-03-17 23:25:28,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:28,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 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 52 [2022-03-17 23:25:28,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:28,882 INFO L225 Difference]: With dead ends: 324 [2022-03-17 23:25:28,882 INFO L226 Difference]: Without dead ends: 165 [2022-03-17 23:25:28,885 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:28,888 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:28,888 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:25:28,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-17 23:25:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-03-17 23:25:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:28,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-03-17 23:25:28,927 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-03-17 23:25:28,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:28,928 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-03-17 23:25:28,928 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:28,928 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-03-17 23:25:28,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:25:28,930 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:28,930 INFO L500 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, 1] [2022-03-17 23:25:28,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:25:28,931 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:28,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash -862448393, now seen corresponding path program 1 times [2022-03-17 23:25:28,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:28,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875798839] [2022-03-17 23:25:28,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:28,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:29,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:29,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875798839] [2022-03-17 23:25:29,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875798839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:29,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:29,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:29,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075022144] [2022-03-17 23:25:29,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:29,129 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:29,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:29,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:29,130 INFO L87 Difference]: Start difference. First operand 148 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:31,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:31,562 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-03-17 23:25:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:31,563 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 [2022-03-17 23:25:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:31,564 INFO L225 Difference]: With dead ends: 287 [2022-03-17 23:25:31,565 INFO L226 Difference]: Without dead ends: 165 [2022-03-17 23:25:31,565 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:31,567 INFO L912 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:31,567 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:25:31,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-17 23:25:31,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-03-17 23:25:31,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:31,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-03-17 23:25:31,578 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-03-17 23:25:31,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:31,578 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-03-17 23:25:31,578 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:31,578 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-03-17 23:25:31,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:25:31,580 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:31,580 INFO L500 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, 1] [2022-03-17 23:25:31,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:25:31,580 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:31,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:31,581 INFO L85 PathProgramCache]: Analyzing trace with hash 564743015, now seen corresponding path program 1 times [2022-03-17 23:25:31,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:31,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45486675] [2022-03-17 23:25:31,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:31,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:31,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:31,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:31,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45486675] [2022-03-17 23:25:31,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45486675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:31,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:31,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:31,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398950922] [2022-03-17 23:25:31,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:31,713 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:31,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:31,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:31,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:31,714 INFO L87 Difference]: Start difference. First operand 148 states and 223 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:33,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:35,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:37,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:39,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:39,815 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-03-17 23:25:39,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:39,816 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 [2022-03-17 23:25:39,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:39,818 INFO L225 Difference]: With dead ends: 286 [2022-03-17 23:25:39,818 INFO L226 Difference]: Without dead ends: 164 [2022-03-17 23:25:39,819 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:39,820 INFO L912 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:39,820 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-17 23:25:39,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-03-17 23:25:39,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-03-17 23:25:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-03-17 23:25:39,831 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-03-17 23:25:39,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:39,832 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-03-17 23:25:39,832 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-03-17 23:25:39,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:25:39,834 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:39,834 INFO L500 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, 1] [2022-03-17 23:25:39,834 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:25:39,834 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:39,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:39,835 INFO L85 PathProgramCache]: Analyzing trace with hash 316443527, now seen corresponding path program 1 times [2022-03-17 23:25:39,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:39,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244573563] [2022-03-17 23:25:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:39,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:40,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:40,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244573563] [2022-03-17 23:25:40,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244573563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:40,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:40,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:40,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714338579] [2022-03-17 23:25:40,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:40,012 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:40,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:40,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:40,013 INFO L87 Difference]: Start difference. First operand 148 states and 222 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:42,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:42,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:42,574 INFO L93 Difference]: Finished difference Result 384 states and 584 transitions. [2022-03-17 23:25:42,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:42,574 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 [2022-03-17 23:25:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:42,576 INFO L225 Difference]: With dead ends: 384 [2022-03-17 23:25:42,576 INFO L226 Difference]: Without dead ends: 262 [2022-03-17 23:25:42,577 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:42,578 INFO L912 BasicCegarLoop]: 107 mSDtfsCounter, 141 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:42,578 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 23:25:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-17 23:25:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 160. [2022-03-17 23:25:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5161290322580645) internal successors, (235), 155 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2022-03-17 23:25:42,588 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 66 [2022-03-17 23:25:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:42,588 INFO L478 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2022-03-17 23:25:42,589 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2022-03-17 23:25:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:25:42,590 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:42,591 INFO L500 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, 1] [2022-03-17 23:25:42,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:25:42,591 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:42,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1779536153, now seen corresponding path program 1 times [2022-03-17 23:25:42,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:42,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493958670] [2022-03-17 23:25:42,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:42,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:42,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:42,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493958670] [2022-03-17 23:25:42,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493958670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:42,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:42,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:42,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499640424] [2022-03-17 23:25:42,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:42,707 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:42,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:42,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:42,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:42,708 INFO L87 Difference]: Start difference. First operand 160 states and 239 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:44,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:45,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:45,109 INFO L93 Difference]: Finished difference Result 309 states and 462 transitions. [2022-03-17 23:25:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:45,110 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 [2022-03-17 23:25:45,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:45,111 INFO L225 Difference]: With dead ends: 309 [2022-03-17 23:25:45,111 INFO L226 Difference]: Without dead ends: 175 [2022-03-17 23:25:45,112 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:45,113 INFO L912 BasicCegarLoop]: 179 mSDtfsCounter, 19 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:45,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 457 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:25:45,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-03-17 23:25:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 160. [2022-03-17 23:25:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5096774193548388) internal successors, (234), 155 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2022-03-17 23:25:45,121 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 66 [2022-03-17 23:25:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:45,121 INFO L478 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2022-03-17 23:25:45,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2022-03-17 23:25:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:25:45,122 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:45,123 INFO L500 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, 1] [2022-03-17 23:25:45,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:25:45,123 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:45,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:45,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2004125753, now seen corresponding path program 1 times [2022-03-17 23:25:45,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:45,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295147309] [2022-03-17 23:25:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:45,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:45,243 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:45,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:45,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295147309] [2022-03-17 23:25:45,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295147309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:45,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:45,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:45,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029357141] [2022-03-17 23:25:45,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:45,244 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:45,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:45,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:45,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:45,245 INFO L87 Difference]: Start difference. First operand 160 states and 238 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:47,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:47,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:47,669 INFO L93 Difference]: Finished difference Result 307 states and 459 transitions. [2022-03-17 23:25:47,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:47,670 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 [2022-03-17 23:25:47,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:47,671 INFO L225 Difference]: With dead ends: 307 [2022-03-17 23:25:47,671 INFO L226 Difference]: Without dead ends: 173 [2022-03-17 23:25:47,671 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:47,672 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:47,672 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:25:47,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-17 23:25:47,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2022-03-17 23:25:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5032258064516129) internal successors, (233), 155 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 237 transitions. [2022-03-17 23:25:47,679 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 237 transitions. Word has length 66 [2022-03-17 23:25:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:47,679 INFO L478 AbstractCegarLoop]: Abstraction has 160 states and 237 transitions. [2022-03-17 23:25:47,679 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 237 transitions. [2022-03-17 23:25:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:25:47,680 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:47,680 INFO L500 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, 1] [2022-03-17 23:25:47,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:25:47,681 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1564834441, now seen corresponding path program 1 times [2022-03-17 23:25:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:47,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832079266] [2022-03-17 23:25:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:47,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:47,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:47,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832079266] [2022-03-17 23:25:47,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832079266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:47,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:47,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:47,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949311285] [2022-03-17 23:25:47,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:47,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:47,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:47,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:47,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:47,795 INFO L87 Difference]: Start difference. First operand 160 states and 237 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:49,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:51,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:53,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:55,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:55,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:55,691 INFO L93 Difference]: Finished difference Result 396 states and 598 transitions. [2022-03-17 23:25:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:55,692 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 [2022-03-17 23:25:55,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:55,694 INFO L225 Difference]: With dead ends: 396 [2022-03-17 23:25:55,694 INFO L226 Difference]: Without dead ends: 262 [2022-03-17 23:25:55,694 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:55,695 INFO L912 BasicCegarLoop]: 107 mSDtfsCounter, 139 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:55,695 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 312 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-17 23:25:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-17 23:25:55,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 161. [2022-03-17 23:25:55,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 156 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:55,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 237 transitions. [2022-03-17 23:25:55,702 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 237 transitions. Word has length 67 [2022-03-17 23:25:55,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:55,702 INFO L478 AbstractCegarLoop]: Abstraction has 161 states and 237 transitions. [2022-03-17 23:25:55,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:55,703 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 237 transitions. [2022-03-17 23:25:55,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 23:25:55,703 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:55,703 INFO L500 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, 1] [2022-03-17 23:25:55,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:25:55,704 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:55,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 214053259, now seen corresponding path program 1 times [2022-03-17 23:25:55,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:55,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499334551] [2022-03-17 23:25:55,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:55,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:55,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:55,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:55,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499334551] [2022-03-17 23:25:55,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499334551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:55,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:55,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:55,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585945215] [2022-03-17 23:25:55,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:55,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:55,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:55,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:55,819 INFO L87 Difference]: Start difference. First operand 161 states and 237 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) [2022-03-17 23:25:57,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:58,207 INFO L93 Difference]: Finished difference Result 309 states and 459 transitions. [2022-03-17 23:25:58,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:58,208 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 [2022-03-17 23:25:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:58,209 INFO L225 Difference]: With dead ends: 309 [2022-03-17 23:25:58,209 INFO L226 Difference]: Without dead ends: 174 [2022-03-17 23:25:58,210 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:58,210 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:58,210 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:25:58,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-17 23:25:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-03-17 23:25:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 156 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 236 transitions. [2022-03-17 23:25:58,216 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 236 transitions. Word has length 68 [2022-03-17 23:25:58,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:58,216 INFO L478 AbstractCegarLoop]: Abstraction has 161 states and 236 transitions. [2022-03-17 23:25:58,216 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) [2022-03-17 23:25:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 236 transitions. [2022-03-17 23:25:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 23:25:58,217 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:58,217 INFO L500 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, 1] [2022-03-17 23:25:58,217 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:25:58,217 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:58,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash -498280966, now seen corresponding path program 1 times [2022-03-17 23:25:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:58,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105388047] [2022-03-17 23:25:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:25:58,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:58,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105388047] [2022-03-17 23:25:58,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105388047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:58,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:58,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:58,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299280144] [2022-03-17 23:25:58,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:58,343 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:58,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:58,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:58,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:58,343 INFO L87 Difference]: Start difference. First operand 161 states and 236 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:00,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:00,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:00,725 INFO L93 Difference]: Finished difference Result 299 states and 445 transitions. [2022-03-17 23:26:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:00,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 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 69 [2022-03-17 23:26:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:00,726 INFO L225 Difference]: With dead ends: 299 [2022-03-17 23:26:00,727 INFO L226 Difference]: Without dead ends: 164 [2022-03-17 23:26:00,727 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:00,728 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:00,728 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-03-17 23:26:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-03-17 23:26:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4807692307692308) internal successors, (231), 156 states have internal predecessors, (231), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 235 transitions. [2022-03-17 23:26:00,734 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 235 transitions. Word has length 69 [2022-03-17 23:26:00,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:00,734 INFO L478 AbstractCegarLoop]: Abstraction has 161 states and 235 transitions. [2022-03-17 23:26:00,734 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 235 transitions. [2022-03-17 23:26:00,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 23:26:00,735 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:00,735 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:00,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:26:00,735 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:00,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:00,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1119257833, now seen corresponding path program 1 times [2022-03-17 23:26:00,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:00,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221586973] [2022-03-17 23:26:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:00,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:26:00,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:00,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221586973] [2022-03-17 23:26:00,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221586973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:00,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:00,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:00,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970608667] [2022-03-17 23:26:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:00,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:00,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:00,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:00,853 INFO L87 Difference]: Start difference. First operand 161 states and 235 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:02,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:03,295 INFO L93 Difference]: Finished difference Result 410 states and 614 transitions. [2022-03-17 23:26:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:03,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 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 69 [2022-03-17 23:26:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:03,297 INFO L225 Difference]: With dead ends: 410 [2022-03-17 23:26:03,297 INFO L226 Difference]: Without dead ends: 275 [2022-03-17 23:26:03,298 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:03,298 INFO L912 BasicCegarLoop]: 107 mSDtfsCounter, 108 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:03,299 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 313 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:03,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-17 23:26:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 204. [2022-03-17 23:26:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.5527638190954773) internal successors, (309), 199 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 313 transitions. [2022-03-17 23:26:03,306 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 313 transitions. Word has length 69 [2022-03-17 23:26:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:03,306 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 313 transitions. [2022-03-17 23:26:03,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 313 transitions. [2022-03-17 23:26:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-17 23:26:03,307 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:03,307 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:03,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:26:03,308 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:03,308 INFO L85 PathProgramCache]: Analyzing trace with hash 338203677, now seen corresponding path program 1 times [2022-03-17 23:26:03,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:03,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084781035] [2022-03-17 23:26:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:03,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:26:03,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:03,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084781035] [2022-03-17 23:26:03,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084781035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:03,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:03,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:03,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024583315] [2022-03-17 23:26:03,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:03,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:03,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:03,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:03,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:03,430 INFO L87 Difference]: Start difference. First operand 204 states and 313 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:05,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:05,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:05,857 INFO L93 Difference]: Finished difference Result 426 states and 662 transitions. [2022-03-17 23:26:05,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:05,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-17 23:26:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:05,859 INFO L225 Difference]: With dead ends: 426 [2022-03-17 23:26:05,859 INFO L226 Difference]: Without dead ends: 248 [2022-03-17 23:26:05,860 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:05,860 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 34 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:05,861 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 473 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-17 23:26:05,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 226. [2022-03-17 23:26:05,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.5610859728506787) internal successors, (345), 221 states have internal predecessors, (345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 349 transitions. [2022-03-17 23:26:05,867 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 349 transitions. Word has length 70 [2022-03-17 23:26:05,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:05,868 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 349 transitions. [2022-03-17 23:26:05,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:05,868 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 349 transitions. [2022-03-17 23:26:05,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-17 23:26:05,869 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:05,869 INFO L500 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, 1, 1] [2022-03-17 23:26:05,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:26:05,869 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1716885067, now seen corresponding path program 1 times [2022-03-17 23:26:05,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:05,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103584022] [2022-03-17 23:26:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:05,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:05,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:26:05,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:05,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103584022] [2022-03-17 23:26:05,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103584022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:05,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:05,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:05,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070444383] [2022-03-17 23:26:05,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:05,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:05,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:05,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:05,979 INFO L87 Difference]: Start difference. First operand 226 states and 349 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:07,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:08,395 INFO L93 Difference]: Finished difference Result 448 states and 697 transitions. [2022-03-17 23:26:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:08,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-17 23:26:08,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:08,397 INFO L225 Difference]: With dead ends: 448 [2022-03-17 23:26:08,397 INFO L226 Difference]: Without dead ends: 248 [2022-03-17 23:26:08,398 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:08,398 INFO L912 BasicCegarLoop]: 185 mSDtfsCounter, 39 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:08,398 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 473 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:08,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-17 23:26:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 226. [2022-03-17 23:26:08,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.5565610859728507) internal successors, (344), 221 states have internal predecessors, (344), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 348 transitions. [2022-03-17 23:26:08,404 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 348 transitions. Word has length 83 [2022-03-17 23:26:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:08,404 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 348 transitions. [2022-03-17 23:26:08,404 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 348 transitions. [2022-03-17 23:26:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:26:08,405 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:08,405 INFO L500 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, 1] [2022-03-17 23:26:08,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:26:08,406 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:08,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:08,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1866734691, now seen corresponding path program 1 times [2022-03-17 23:26:08,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:08,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028842729] [2022-03-17 23:26:08,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:08,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:08,539 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:26:08,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:08,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028842729] [2022-03-17 23:26:08,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028842729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:08,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:08,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:08,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216939204] [2022-03-17 23:26:08,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:08,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:08,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:08,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:08,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:08,541 INFO L87 Difference]: Start difference. First operand 226 states and 348 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:10,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:11,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:11,007 INFO L93 Difference]: Finished difference Result 455 states and 707 transitions. [2022-03-17 23:26:11,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:11,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:26:11,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:11,009 INFO L225 Difference]: With dead ends: 455 [2022-03-17 23:26:11,009 INFO L226 Difference]: Without dead ends: 255 [2022-03-17 23:26:11,010 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:11,010 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:11,010 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 544 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:11,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-17 23:26:11,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 242. [2022-03-17 23:26:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.5527426160337552) internal successors, (368), 237 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 372 transitions. [2022-03-17 23:26:11,017 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 372 transitions. Word has length 84 [2022-03-17 23:26:11,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:11,017 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 372 transitions. [2022-03-17 23:26:11,017 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:11,017 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 372 transitions. [2022-03-17 23:26:11,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:26:11,018 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:11,018 INFO L500 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:11,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:26:11,018 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:11,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:11,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2086442781, now seen corresponding path program 1 times [2022-03-17 23:26:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:11,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639862607] [2022-03-17 23:26:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:11,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:11,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:26:11,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:11,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639862607] [2022-03-17 23:26:11,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639862607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:11,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:11,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:11,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224605536] [2022-03-17 23:26:11,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:11,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:11,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:11,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:11,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:11,177 INFO L87 Difference]: Start difference. First operand 242 states and 372 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:13,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:13,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:13,645 INFO L93 Difference]: Finished difference Result 558 states and 868 transitions. [2022-03-17 23:26:13,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:13,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:26:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:13,647 INFO L225 Difference]: With dead ends: 558 [2022-03-17 23:26:13,647 INFO L226 Difference]: Without dead ends: 342 [2022-03-17 23:26:13,648 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:13,648 INFO L912 BasicCegarLoop]: 109 mSDtfsCounter, 134 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:13,649 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-03-17 23:26:13,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 247. [2022-03-17 23:26:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 242 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:13,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 379 transitions. [2022-03-17 23:26:13,656 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 379 transitions. Word has length 84 [2022-03-17 23:26:13,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:13,656 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 379 transitions. [2022-03-17 23:26:13,657 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:13,657 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 379 transitions. [2022-03-17 23:26:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:26:13,657 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:13,658 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:13,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:26:13,658 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:13,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:13,658 INFO L85 PathProgramCache]: Analyzing trace with hash -458785789, now seen corresponding path program 1 times [2022-03-17 23:26:13,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:13,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630628949] [2022-03-17 23:26:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:13,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:13,772 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:26:13,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:13,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630628949] [2022-03-17 23:26:13,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630628949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:13,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:13,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:13,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562348101] [2022-03-17 23:26:13,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:13,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:13,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:13,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:13,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:13,774 INFO L87 Difference]: Start difference. First operand 247 states and 379 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:15,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:16,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:16,128 INFO L93 Difference]: Finished difference Result 487 states and 754 transitions. [2022-03-17 23:26:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:16,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:26:16,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:16,129 INFO L225 Difference]: With dead ends: 487 [2022-03-17 23:26:16,130 INFO L226 Difference]: Without dead ends: 266 [2022-03-17 23:26:16,130 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:16,131 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 36 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:16,131 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:26:16,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-17 23:26:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 247. [2022-03-17 23:26:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5454545454545454) internal successors, (374), 242 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 378 transitions. [2022-03-17 23:26:16,138 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 378 transitions. Word has length 84 [2022-03-17 23:26:16,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:16,138 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 378 transitions. [2022-03-17 23:26:16,138 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:16,138 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 378 transitions. [2022-03-17 23:26:16,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 23:26:16,139 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:16,139 INFO L500 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, 1, 1] [2022-03-17 23:26:16,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:26:16,140 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:16,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:16,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1191609488, now seen corresponding path program 1 times [2022-03-17 23:26:16,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:16,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133624080] [2022-03-17 23:26:16,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:16,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:16,303 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-17 23:26:16,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:16,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133624080] [2022-03-17 23:26:16,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133624080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:16,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:16,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:26:16,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127315171] [2022-03-17 23:26:16,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:16,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:26:16,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:16,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:26:16,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:16,306 INFO L87 Difference]: Start difference. First operand 247 states and 378 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:18,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:18,683 INFO L93 Difference]: Finished difference Result 477 states and 738 transitions. [2022-03-17 23:26:18,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:26:18,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-17 23:26:18,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:18,684 INFO L225 Difference]: With dead ends: 477 [2022-03-17 23:26:18,685 INFO L226 Difference]: Without dead ends: 256 [2022-03-17 23:26:18,685 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:26:18,685 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:18,686 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-17 23:26:18,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-03-17 23:26:18,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5338645418326693) internal successors, (385), 251 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2022-03-17 23:26:18,693 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 85 [2022-03-17 23:26:18,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:18,693 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2022-03-17 23:26:18,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2022-03-17 23:26:18,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 23:26:18,694 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:18,694 INFO L500 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, 1, 1] [2022-03-17 23:26:18,694 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:26:18,694 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:18,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1818163604, now seen corresponding path program 1 times [2022-03-17 23:26:18,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:18,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879357509] [2022-03-17 23:26:18,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:18,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:26:18,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:18,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879357509] [2022-03-17 23:26:18,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879357509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:18,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:18,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:18,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748752044] [2022-03-17 23:26:18,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:18,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:18,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:18,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:18,798 INFO L87 Difference]: Start difference. First operand 256 states and 389 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) [2022-03-17 23:26:20,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:21,255 INFO L93 Difference]: Finished difference Result 590 states and 903 transitions. [2022-03-17 23:26:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:21,255 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 87 [2022-03-17 23:26:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:21,260 INFO L225 Difference]: With dead ends: 590 [2022-03-17 23:26:21,260 INFO L226 Difference]: Without dead ends: 360 [2022-03-17 23:26:21,261 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:21,261 INFO L912 BasicCegarLoop]: 109 mSDtfsCounter, 137 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:21,262 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-17 23:26:21,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 256. [2022-03-17 23:26:21,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5179282868525896) internal successors, (381), 251 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 385 transitions. [2022-03-17 23:26:21,276 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 385 transitions. Word has length 87 [2022-03-17 23:26:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:21,277 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 385 transitions. [2022-03-17 23:26:21,277 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) [2022-03-17 23:26:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 385 transitions. [2022-03-17 23:26:21,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-17 23:26:21,278 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:21,278 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:21,278 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:26:21,278 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:21,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:21,279 INFO L85 PathProgramCache]: Analyzing trace with hash 989898955, now seen corresponding path program 1 times [2022-03-17 23:26:21,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:21,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370069910] [2022-03-17 23:26:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:21,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:21,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:26:21,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:21,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370069910] [2022-03-17 23:26:21,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370069910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:21,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:21,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:21,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954058304] [2022-03-17 23:26:21,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:21,389 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:21,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:21,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:21,390 INFO L87 Difference]: Start difference. First operand 256 states and 385 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:23,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:23,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:23,790 INFO L93 Difference]: Finished difference Result 504 states and 764 transitions. [2022-03-17 23:26:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:23,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-17 23:26:23,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:23,791 INFO L225 Difference]: With dead ends: 504 [2022-03-17 23:26:23,792 INFO L226 Difference]: Without dead ends: 274 [2022-03-17 23:26:23,792 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:23,792 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 35 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:23,793 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 481 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:26:23,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-17 23:26:23,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 256. [2022-03-17 23:26:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5139442231075697) internal successors, (380), 251 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:23,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 384 transitions. [2022-03-17 23:26:23,800 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 384 transitions. Word has length 88 [2022-03-17 23:26:23,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:23,800 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 384 transitions. [2022-03-17 23:26:23,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 384 transitions. [2022-03-17 23:26:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-17 23:26:23,801 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:23,801 INFO L500 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, 1, 1] [2022-03-17 23:26:23,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:26:23,801 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176068, now seen corresponding path program 1 times [2022-03-17 23:26:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:23,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006232060] [2022-03-17 23:26:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:23,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:23,921 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:26:23,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:23,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006232060] [2022-03-17 23:26:23,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006232060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:23,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:23,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:23,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831109724] [2022-03-17 23:26:23,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:23,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:23,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:23,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:23,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:23,923 INFO L87 Difference]: Start difference. First operand 256 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:26,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:28,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:30,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:30,911 INFO L93 Difference]: Finished difference Result 590 states and 893 transitions. [2022-03-17 23:26:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:30,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-03-17 23:26:30,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:30,913 INFO L225 Difference]: With dead ends: 590 [2022-03-17 23:26:30,913 INFO L226 Difference]: Without dead ends: 358 [2022-03-17 23:26:30,914 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:30,914 INFO L912 BasicCegarLoop]: 114 mSDtfsCounter, 107 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:30,914 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 326 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:26:30,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-17 23:26:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 280. [2022-03-17 23:26:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5527272727272727) internal successors, (427), 275 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:30,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 431 transitions. [2022-03-17 23:26:30,922 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 431 transitions. Word has length 92 [2022-03-17 23:26:30,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:30,922 INFO L478 AbstractCegarLoop]: Abstraction has 280 states and 431 transitions. [2022-03-17 23:26:30,922 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 431 transitions. [2022-03-17 23:26:30,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-03-17 23:26:30,924 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:30,924 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:30,924 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:26:30,924 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:30,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:30,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1099971198, now seen corresponding path program 1 times [2022-03-17 23:26:30,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:30,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652727386] [2022-03-17 23:26:30,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:30,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:31,042 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:26:31,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:31,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652727386] [2022-03-17 23:26:31,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652727386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:31,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:31,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:31,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023720426] [2022-03-17 23:26:31,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:31,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:31,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:31,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:31,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:31,044 INFO L87 Difference]: Start difference. First operand 280 states and 431 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) [2022-03-17 23:26:32,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:34,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:36,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:38,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:38,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:38,639 INFO L93 Difference]: Finished difference Result 651 states and 1006 transitions. [2022-03-17 23:26:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:38,640 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 120 [2022-03-17 23:26:38,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:38,641 INFO L225 Difference]: With dead ends: 651 [2022-03-17 23:26:38,641 INFO L226 Difference]: Without dead ends: 397 [2022-03-17 23:26:38,642 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:38,642 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 115 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 49 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:38,643 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 342 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 23:26:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-17 23:26:38,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 312. [2022-03-17 23:26:38,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 307 states have (on average 1.5635179153094463) internal successors, (480), 307 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:38,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 484 transitions. [2022-03-17 23:26:38,650 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 484 transitions. Word has length 120 [2022-03-17 23:26:38,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:38,651 INFO L478 AbstractCegarLoop]: Abstraction has 312 states and 484 transitions. [2022-03-17 23:26:38,651 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) [2022-03-17 23:26:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 484 transitions. [2022-03-17 23:26:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-17 23:26:38,652 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:38,652 INFO L500 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, 1, 1] [2022-03-17 23:26:38,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:26:38,653 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1440427339, now seen corresponding path program 1 times [2022-03-17 23:26:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:38,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766970572] [2022-03-17 23:26:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 23:26:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:38,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766970572] [2022-03-17 23:26:38,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766970572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:38,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:38,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:26:38,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123022356] [2022-03-17 23:26:38,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:38,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:26:38,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:26:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:26:38,765 INFO L87 Difference]: Start difference. First operand 312 states and 484 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:41,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:43,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:45,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:45,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:45,547 INFO L93 Difference]: Finished difference Result 666 states and 1030 transitions. [2022-03-17 23:26:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:26:45,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-17 23:26:45,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:45,549 INFO L225 Difference]: With dead ends: 666 [2022-03-17 23:26:45,549 INFO L226 Difference]: Without dead ends: 380 [2022-03-17 23:26:45,550 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:26:45,551 INFO L912 BasicCegarLoop]: 110 mSDtfsCounter, 137 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:45,551 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 318 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:26:45,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-17 23:26:45,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 312. [2022-03-17 23:26:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 307 states have (on average 1.5472312703583062) internal successors, (475), 307 states have internal predecessors, (475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 479 transitions. [2022-03-17 23:26:45,561 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 479 transitions. Word has length 125 [2022-03-17 23:26:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:45,561 INFO L478 AbstractCegarLoop]: Abstraction has 312 states and 479 transitions. [2022-03-17 23:26:45,561 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 479 transitions. [2022-03-17 23:26:45,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:26:45,562 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:45,562 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:45,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:26:45,562 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:45,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:45,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1373336550, now seen corresponding path program 1 times [2022-03-17 23:26:45,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:45,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983156906] [2022-03-17 23:26:45,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:45,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:26:45,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:45,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983156906] [2022-03-17 23:26:45,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983156906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:45,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:45,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:26:45,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031142517] [2022-03-17 23:26:45,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:45,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:26:45,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:45,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:26:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:26:45,679 INFO L87 Difference]: Start difference. First operand 312 states and 479 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:47,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:49,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:50,146 INFO L93 Difference]: Finished difference Result 879 states and 1372 transitions. [2022-03-17 23:26:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:26:50,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:26:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:50,148 INFO L225 Difference]: With dead ends: 879 [2022-03-17 23:26:50,149 INFO L226 Difference]: Without dead ends: 593 [2022-03-17 23:26:50,149 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:26:50,150 INFO L912 BasicCegarLoop]: 363 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:50,150 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:26:50,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-03-17 23:26:50,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2022-03-17 23:26:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 588 states have (on average 1.554421768707483) internal successors, (914), 588 states have internal predecessors, (914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 918 transitions. [2022-03-17 23:26:50,161 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 918 transitions. Word has length 132 [2022-03-17 23:26:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:50,162 INFO L478 AbstractCegarLoop]: Abstraction has 593 states and 918 transitions. [2022-03-17 23:26:50,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 918 transitions. [2022-03-17 23:26:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:26:50,163 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:50,163 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:50,163 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:26:50,163 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:50,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash 348642629, now seen corresponding path program 1 times [2022-03-17 23:26:50,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:50,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380636882] [2022-03-17 23:26:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:50,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:26:50,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:50,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380636882] [2022-03-17 23:26:50,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380636882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:50,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:50,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:26:50,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965676066] [2022-03-17 23:26:50,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:50,275 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:26:50,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:50,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:26:50,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:26:50,275 INFO L87 Difference]: Start difference. First operand 593 states and 918 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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) [2022-03-17 23:26:52,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:52,553 INFO L93 Difference]: Finished difference Result 1399 states and 2178 transitions. [2022-03-17 23:26:52,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:26:52,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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 [2022-03-17 23:26:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:52,556 INFO L225 Difference]: With dead ends: 1399 [2022-03-17 23:26:52,556 INFO L226 Difference]: Without dead ends: 832 [2022-03-17 23:26:52,557 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:26:52,558 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:52,558 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:26:52,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-03-17 23:26:52,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2022-03-17 23:26:52,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.5489721886336154) internal successors, (1281), 827 states have internal predecessors, (1281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1285 transitions. [2022-03-17 23:26:52,574 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1285 transitions. Word has length 132 [2022-03-17 23:26:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:52,574 INFO L478 AbstractCegarLoop]: Abstraction has 832 states and 1285 transitions. [2022-03-17 23:26:52,574 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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) [2022-03-17 23:26:52,574 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1285 transitions. [2022-03-17 23:26:52,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:26:52,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:52,576 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:52,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:26:52,577 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:52,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:52,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2018872788, now seen corresponding path program 1 times [2022-03-17 23:26:52,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:52,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579003714] [2022-03-17 23:26:52,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:52,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-17 23:26:52,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:52,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579003714] [2022-03-17 23:26:52,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579003714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:52,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:52,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:26:52,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434445751] [2022-03-17 23:26:52,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:52,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:26:52,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:52,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:26:52,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:26:52,671 INFO L87 Difference]: Start difference. First operand 832 states and 1285 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:54,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:26:54,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:26:54,996 INFO L93 Difference]: Finished difference Result 1665 states and 2577 transitions. [2022-03-17 23:26:54,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:26:54,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 23:26:54,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:26:55,000 INFO L225 Difference]: With dead ends: 1665 [2022-03-17 23:26:55,000 INFO L226 Difference]: Without dead ends: 859 [2022-03-17 23:26:55,001 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:26:55,002 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:26:55,002 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:26:55,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-03-17 23:26:55,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2022-03-17 23:26:55,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 854 states have (on average 1.540983606557377) internal successors, (1316), 854 states have internal predecessors, (1316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1320 transitions. [2022-03-17 23:26:55,018 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1320 transitions. Word has length 133 [2022-03-17 23:26:55,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:26:55,019 INFO L478 AbstractCegarLoop]: Abstraction has 859 states and 1320 transitions. [2022-03-17 23:26:55,019 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1320 transitions. [2022-03-17 23:26:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:26:55,021 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:26:55,021 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:26:55,021 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:26:55,021 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:26:55,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:26:55,021 INFO L85 PathProgramCache]: Analyzing trace with hash -942319379, now seen corresponding path program 1 times [2022-03-17 23:26:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:26:55,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094332256] [2022-03-17 23:26:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:26:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:26:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:55,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:26:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:26:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-17 23:26:55,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:26:55,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094332256] [2022-03-17 23:26:55,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094332256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:26:55,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:26:55,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:26:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698470426] [2022-03-17 23:26:55,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:26:55,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:26:55,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:26:55,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:26:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:26:55,119 INFO L87 Difference]: Start difference. First operand 859 states and 1320 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:26:58,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:00,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:00,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:00,326 INFO L93 Difference]: Finished difference Result 1694 states and 2613 transitions. [2022-03-17 23:27:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:27:00,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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 133 [2022-03-17 23:27:00,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:00,330 INFO L225 Difference]: With dead ends: 1694 [2022-03-17 23:27:00,330 INFO L226 Difference]: Without dead ends: 861 [2022-03-17 23:27:00,332 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:27:00,332 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:00,332 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 214 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:27:00,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-03-17 23:27:00,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2022-03-17 23:27:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5397196261682242) internal successors, (1318), 856 states have internal predecessors, (1318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1322 transitions. [2022-03-17 23:27:00,350 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1322 transitions. Word has length 133 [2022-03-17 23:27:00,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:00,350 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1322 transitions. [2022-03-17 23:27:00,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:00,351 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1322 transitions. [2022-03-17 23:27:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-17 23:27:00,353 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:00,353 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:00,353 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:27:00,353 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:00,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:00,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1318648105, now seen corresponding path program 1 times [2022-03-17 23:27:00,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:00,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878327437] [2022-03-17 23:27:00,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:00,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:00,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 23:27:00,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:00,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878327437] [2022-03-17 23:27:00,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878327437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:00,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:00,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:00,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018443410] [2022-03-17 23:27:00,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:00,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:00,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:00,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:00,484 INFO L87 Difference]: Start difference. First operand 861 states and 1322 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:02,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:03,097 INFO L93 Difference]: Finished difference Result 1799 states and 2746 transitions. [2022-03-17 23:27:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:03,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-17 23:27:03,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:03,101 INFO L225 Difference]: With dead ends: 1799 [2022-03-17 23:27:03,101 INFO L226 Difference]: Without dead ends: 966 [2022-03-17 23:27:03,103 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:03,103 INFO L912 BasicCegarLoop]: 261 mSDtfsCounter, 97 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:03,104 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 624 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 23:27:03,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-03-17 23:27:03,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 861. [2022-03-17 23:27:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5373831775700935) internal successors, (1316), 856 states have internal predecessors, (1316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1320 transitions. [2022-03-17 23:27:03,122 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1320 transitions. Word has length 196 [2022-03-17 23:27:03,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:03,122 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1320 transitions. [2022-03-17 23:27:03,123 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:03,123 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1320 transitions. [2022-03-17 23:27:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-17 23:27:03,125 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:03,125 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:03,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:27:03,125 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:03,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1012366808, now seen corresponding path program 1 times [2022-03-17 23:27:03,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:03,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9143553] [2022-03-17 23:27:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:03,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 23:27:03,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:03,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9143553] [2022-03-17 23:27:03,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9143553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:03,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:03,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:03,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928913881] [2022-03-17 23:27:03,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:03,256 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:03,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:03,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:03,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:03,257 INFO L87 Difference]: Start difference. First operand 861 states and 1320 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:05,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:05,695 INFO L93 Difference]: Finished difference Result 1890 states and 2869 transitions. [2022-03-17 23:27:05,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:05,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 197 [2022-03-17 23:27:05,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:05,699 INFO L225 Difference]: With dead ends: 1890 [2022-03-17 23:27:05,699 INFO L226 Difference]: Without dead ends: 1057 [2022-03-17 23:27:05,700 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:05,701 INFO L912 BasicCegarLoop]: 110 mSDtfsCounter, 123 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:05,701 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:27:05,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-03-17 23:27:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 861. [2022-03-17 23:27:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.52803738317757) internal successors, (1308), 856 states have internal predecessors, (1308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1312 transitions. [2022-03-17 23:27:05,719 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1312 transitions. Word has length 197 [2022-03-17 23:27:05,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:05,720 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1312 transitions. [2022-03-17 23:27:05,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:05,720 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1312 transitions. [2022-03-17 23:27:05,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-03-17 23:27:05,722 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:05,722 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:05,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:27:05,722 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:05,723 INFO L85 PathProgramCache]: Analyzing trace with hash -690004383, now seen corresponding path program 1 times [2022-03-17 23:27:05,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:05,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723256163] [2022-03-17 23:27:05,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:05,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:05,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:05,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723256163] [2022-03-17 23:27:05,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723256163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:05,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:05,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:05,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934916715] [2022-03-17 23:27:05,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:05,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:05,873 INFO L87 Difference]: Start difference. First operand 861 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:06,884 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 [] [2022-03-17 23:27:08,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:10,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:12,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:13,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:13,398 INFO L93 Difference]: Finished difference Result 1890 states and 2853 transitions. [2022-03-17 23:27:13,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:13,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 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 209 [2022-03-17 23:27:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:13,401 INFO L225 Difference]: With dead ends: 1890 [2022-03-17 23:27:13,401 INFO L226 Difference]: Without dead ends: 1057 [2022-03-17 23:27:13,402 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:13,402 INFO L912 BasicCegarLoop]: 110 mSDtfsCounter, 129 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:13,402 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 318 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 459 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 23:27:13,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-03-17 23:27:13,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 861. [2022-03-17 23:27:13,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5186915887850467) internal successors, (1300), 856 states have internal predecessors, (1300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1304 transitions. [2022-03-17 23:27:13,420 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1304 transitions. Word has length 209 [2022-03-17 23:27:13,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:13,421 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1304 transitions. [2022-03-17 23:27:13,421 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:13,421 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1304 transitions. [2022-03-17 23:27:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-17 23:27:13,423 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:13,423 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:13,423 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:27:13,423 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:13,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:13,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1794649539, now seen corresponding path program 1 times [2022-03-17 23:27:13,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:13,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466987568] [2022-03-17 23:27:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:13,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:13,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:13,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:13,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466987568] [2022-03-17 23:27:13,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466987568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:13,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:13,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:13,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995995649] [2022-03-17 23:27:13,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:13,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:13,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:13,557 INFO L87 Difference]: Start difference. First operand 861 states and 1304 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:15,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:16,079 INFO L93 Difference]: Finished difference Result 1785 states and 2692 transitions. [2022-03-17 23:27:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:16,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 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 210 [2022-03-17 23:27:16,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:16,082 INFO L225 Difference]: With dead ends: 1785 [2022-03-17 23:27:16,082 INFO L226 Difference]: Without dead ends: 952 [2022-03-17 23:27:16,083 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:16,084 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 93 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:16,084 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 610 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 23:27:16,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-03-17 23:27:16,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 861. [2022-03-17 23:27:16,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.516355140186916) internal successors, (1298), 856 states have internal predecessors, (1298), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1302 transitions. [2022-03-17 23:27:16,101 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1302 transitions. Word has length 210 [2022-03-17 23:27:16,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:16,101 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1302 transitions. [2022-03-17 23:27:16,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1302 transitions. [2022-03-17 23:27:16,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-17 23:27:16,104 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:16,104 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:16,104 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:27:16,104 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:16,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash 554678676, now seen corresponding path program 1 times [2022-03-17 23:27:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:16,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894241076] [2022-03-17 23:27:16,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:16,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 256 proven. 33 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-17 23:27:16,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:16,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894241076] [2022-03-17 23:27:16,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894241076] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:27:16,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657350254] [2022-03-17 23:27:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:16,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:27:16,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:27:16,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:27:16,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 23:27:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:16,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-17 23:27:16,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:27:17,083 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:27:17,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:27:17,177 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:27:17,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:27:17,272 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:27:17,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:27:17,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:27:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 264 proven. 30 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-03-17 23:27:17,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:27:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:17,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657350254] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:27:17,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:27:17,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 12 [2022-03-17 23:27:17,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846306018] [2022-03-17 23:27:17,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:17,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:27:17,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:17,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:27:17,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:27:17,822 INFO L87 Difference]: Start difference. First operand 861 states and 1302 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:19,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:19,469 INFO L93 Difference]: Finished difference Result 1974 states and 2977 transitions. [2022-03-17 23:27:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:27:19,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-17 23:27:19,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:19,474 INFO L225 Difference]: With dead ends: 1974 [2022-03-17 23:27:19,474 INFO L226 Difference]: Without dead ends: 1141 [2022-03-17 23:27:19,475 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:27:19,476 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 99 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:19,476 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 387 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 23:27:19,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-03-17 23:27:19,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 921. [2022-03-17 23:27:19,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4989082969432315) internal successors, (1373), 916 states have internal predecessors, (1373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:19,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1377 transitions. [2022-03-17 23:27:19,497 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1377 transitions. Word has length 213 [2022-03-17 23:27:19,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:19,497 INFO L478 AbstractCegarLoop]: Abstraction has 921 states and 1377 transitions. [2022-03-17 23:27:19,497 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:19,498 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1377 transitions. [2022-03-17 23:27:19,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-17 23:27:19,500 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:19,500 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:19,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 23:27:19,720 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:27:19,720 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:19,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash -133422725, now seen corresponding path program 1 times [2022-03-17 23:27:19,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:19,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315287384] [2022-03-17 23:27:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:19,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:19,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:19,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315287384] [2022-03-17 23:27:19,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315287384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:19,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:19,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159555786] [2022-03-17 23:27:19,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:19,862 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:19,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:19,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:19,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:19,863 INFO L87 Difference]: Start difference. First operand 921 states and 1377 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:21,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:22,335 INFO L93 Difference]: Finished difference Result 1980 states and 2944 transitions. [2022-03-17 23:27:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 214 [2022-03-17 23:27:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:22,338 INFO L225 Difference]: With dead ends: 1980 [2022-03-17 23:27:22,339 INFO L226 Difference]: Without dead ends: 1087 [2022-03-17 23:27:22,340 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:22,341 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:22,341 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 334 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:27:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-03-17 23:27:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 921. [2022-03-17 23:27:22,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4836244541484715) internal successors, (1359), 916 states have internal predecessors, (1359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1363 transitions. [2022-03-17 23:27:22,361 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1363 transitions. Word has length 214 [2022-03-17 23:27:22,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:22,361 INFO L478 AbstractCegarLoop]: Abstraction has 921 states and 1363 transitions. [2022-03-17 23:27:22,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1363 transitions. [2022-03-17 23:27:22,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-17 23:27:22,364 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:22,364 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:22,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:27:22,364 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash -168214403, now seen corresponding path program 1 times [2022-03-17 23:27:22,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:22,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953794089] [2022-03-17 23:27:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:22,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:22,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:22,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:22,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953794089] [2022-03-17 23:27:22,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953794089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:22,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:22,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:22,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947930064] [2022-03-17 23:27:22,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:22,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:22,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:22,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:22,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:22,508 INFO L87 Difference]: Start difference. First operand 921 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:25,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:27,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:29,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:30,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:30,020 INFO L93 Difference]: Finished difference Result 1885 states and 2784 transitions. [2022-03-17 23:27:30,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:30,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 214 [2022-03-17 23:27:30,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:30,024 INFO L225 Difference]: With dead ends: 1885 [2022-03-17 23:27:30,024 INFO L226 Difference]: Without dead ends: 992 [2022-03-17 23:27:30,026 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:30,026 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 80 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:30,026 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 592 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 553 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 23:27:30,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-03-17 23:27:30,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 921. [2022-03-17 23:27:30,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4814410480349345) internal successors, (1357), 916 states have internal predecessors, (1357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:30,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1361 transitions. [2022-03-17 23:27:30,046 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1361 transitions. Word has length 214 [2022-03-17 23:27:30,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:30,046 INFO L478 AbstractCegarLoop]: Abstraction has 921 states and 1361 transitions. [2022-03-17 23:27:30,046 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:30,046 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1361 transitions. [2022-03-17 23:27:30,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-03-17 23:27:30,048 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:30,049 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:30,049 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:27:30,049 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:30,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:30,049 INFO L85 PathProgramCache]: Analyzing trace with hash -443142085, now seen corresponding path program 1 times [2022-03-17 23:27:30,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:30,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653789323] [2022-03-17 23:27:30,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:30,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:30,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:30,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653789323] [2022-03-17 23:27:30,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653789323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:30,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:30,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:30,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934168298] [2022-03-17 23:27:30,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:30,230 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:30,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:30,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:30,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:30,231 INFO L87 Difference]: Start difference. First operand 921 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:32,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:32,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:32,657 INFO L93 Difference]: Finished difference Result 2106 states and 3116 transitions. [2022-03-17 23:27:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-03-17 23:27:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:32,662 INFO L225 Difference]: With dead ends: 2106 [2022-03-17 23:27:32,662 INFO L226 Difference]: Without dead ends: 1213 [2022-03-17 23:27:32,663 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:32,664 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 116 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:32,664 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 334 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:27:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2022-03-17 23:27:32,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 984. [2022-03-17 23:27:32,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 979 states have (on average 1.4627170582226763) internal successors, (1432), 979 states have internal predecessors, (1432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:32,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1436 transitions. [2022-03-17 23:27:32,686 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1436 transitions. Word has length 215 [2022-03-17 23:27:32,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:32,686 INFO L478 AbstractCegarLoop]: Abstraction has 984 states and 1436 transitions. [2022-03-17 23:27:32,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1436 transitions. [2022-03-17 23:27:32,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-03-17 23:27:32,689 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:32,689 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:32,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:27:32,689 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:32,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:32,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1150066281, now seen corresponding path program 1 times [2022-03-17 23:27:32,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:32,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027977145] [2022-03-17 23:27:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:32,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:32,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:32,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027977145] [2022-03-17 23:27:32,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027977145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:32,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:32,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:32,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692318027] [2022-03-17 23:27:32,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:32,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:32,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:32,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:32,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:32,850 INFO L87 Difference]: Start difference. First operand 984 states and 1436 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:34,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:35,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:35,264 INFO L93 Difference]: Finished difference Result 2192 states and 3198 transitions. [2022-03-17 23:27:35,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:35,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-03-17 23:27:35,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:35,267 INFO L225 Difference]: With dead ends: 2192 [2022-03-17 23:27:35,267 INFO L226 Difference]: Without dead ends: 1236 [2022-03-17 23:27:35,268 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:35,269 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:35,269 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 344 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:27:35,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-03-17 23:27:35,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1034. [2022-03-17 23:27:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4499514091350827) internal successors, (1492), 1029 states have internal predecessors, (1492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1496 transitions. [2022-03-17 23:27:35,293 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1496 transitions. Word has length 218 [2022-03-17 23:27:35,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:35,293 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1496 transitions. [2022-03-17 23:27:35,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:35,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1496 transitions. [2022-03-17 23:27:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-17 23:27:35,296 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:35,296 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:35,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:27:35,296 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:35,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash -546969239, now seen corresponding path program 1 times [2022-03-17 23:27:35,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:35,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746768034] [2022-03-17 23:27:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:35,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:35,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:35,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:35,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746768034] [2022-03-17 23:27:35,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746768034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:35,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:35,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:35,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768761104] [2022-03-17 23:27:35,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:35,425 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:35,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:35,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:35,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:35,426 INFO L87 Difference]: Start difference. First operand 1034 states and 1496 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) [2022-03-17 23:27:37,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:37,892 INFO L93 Difference]: Finished difference Result 2202 states and 3177 transitions. [2022-03-17 23:27:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:37,895 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 219 [2022-03-17 23:27:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:37,899 INFO L225 Difference]: With dead ends: 2202 [2022-03-17 23:27:37,899 INFO L226 Difference]: Without dead ends: 1196 [2022-03-17 23:27:37,900 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:37,900 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 112 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:37,900 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 334 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:27:37,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2022-03-17 23:27:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1034. [2022-03-17 23:27:37,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4421768707482994) internal successors, (1484), 1029 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:37,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1488 transitions. [2022-03-17 23:27:37,923 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1488 transitions. Word has length 219 [2022-03-17 23:27:37,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:37,923 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1488 transitions. [2022-03-17 23:27:37,923 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) [2022-03-17 23:27:37,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1488 transitions. [2022-03-17 23:27:37,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-03-17 23:27:37,925 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:37,925 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:37,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:27:37,926 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:37,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:37,926 INFO L85 PathProgramCache]: Analyzing trace with hash -547343874, now seen corresponding path program 1 times [2022-03-17 23:27:37,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:37,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845247779] [2022-03-17 23:27:37,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:37,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:38,063 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:38,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:38,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845247779] [2022-03-17 23:27:38,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845247779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:38,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:38,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:38,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852053744] [2022-03-17 23:27:38,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:38,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:38,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:38,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:38,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:38,065 INFO L87 Difference]: Start difference. First operand 1034 states and 1488 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:40,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:40,498 INFO L93 Difference]: Finished difference Result 2096 states and 3016 transitions. [2022-03-17 23:27:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 221 [2022-03-17 23:27:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:40,500 INFO L225 Difference]: With dead ends: 2096 [2022-03-17 23:27:40,501 INFO L226 Difference]: Without dead ends: 1090 [2022-03-17 23:27:40,502 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:40,502 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:40,502 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 574 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:27:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2022-03-17 23:27:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1034. [2022-03-17 23:27:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4402332361516035) internal successors, (1482), 1029 states have internal predecessors, (1482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1486 transitions. [2022-03-17 23:27:40,524 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1486 transitions. Word has length 221 [2022-03-17 23:27:40,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:40,525 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1486 transitions. [2022-03-17 23:27:40,525 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1486 transitions. [2022-03-17 23:27:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-17 23:27:40,527 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:40,527 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:40,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:27:40,527 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash 29557597, now seen corresponding path program 1 times [2022-03-17 23:27:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:40,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753449768] [2022-03-17 23:27:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:40,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:40,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:40,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753449768] [2022-03-17 23:27:40,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753449768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:40,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:40,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:40,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079497495] [2022-03-17 23:27:40,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:40,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:40,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:40,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:40,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:40,680 INFO L87 Difference]: Start difference. First operand 1034 states and 1486 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:42,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:43,143 INFO L93 Difference]: Finished difference Result 2080 states and 2986 transitions. [2022-03-17 23:27:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:43,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 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 222 [2022-03-17 23:27:43,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:43,145 INFO L225 Difference]: With dead ends: 2080 [2022-03-17 23:27:43,145 INFO L226 Difference]: Without dead ends: 1074 [2022-03-17 23:27:43,147 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:43,147 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 51 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:43,147 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 564 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:27:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-03-17 23:27:43,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1034. [2022-03-17 23:27:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4382896015549076) internal successors, (1480), 1029 states have internal predecessors, (1480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1484 transitions. [2022-03-17 23:27:43,169 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1484 transitions. Word has length 222 [2022-03-17 23:27:43,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:43,169 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1484 transitions. [2022-03-17 23:27:43,169 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:43,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1484 transitions. [2022-03-17 23:27:43,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-17 23:27:43,172 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:43,172 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:43,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:27:43,172 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:43,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:43,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1817226739, now seen corresponding path program 1 times [2022-03-17 23:27:43,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:43,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173890234] [2022-03-17 23:27:43,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:43,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:43,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:43,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173890234] [2022-03-17 23:27:43,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173890234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:43,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:43,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329097097] [2022-03-17 23:27:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:43,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:43,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:43,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:43,314 INFO L87 Difference]: Start difference. First operand 1034 states and 1484 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:44,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:46,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:48,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:50,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:51,087 INFO L93 Difference]: Finished difference Result 2328 states and 3348 transitions. [2022-03-17 23:27:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:51,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2022-03-17 23:27:51,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:51,091 INFO L225 Difference]: With dead ends: 2328 [2022-03-17 23:27:51,092 INFO L226 Difference]: Without dead ends: 1322 [2022-03-17 23:27:51,093 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:51,093 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 106 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 51 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:51,094 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 334 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 448 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:27:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-03-17 23:27:51,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1124. [2022-03-17 23:27:51,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.4307417336907953) internal successors, (1601), 1119 states have internal predecessors, (1601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1605 transitions. [2022-03-17 23:27:51,118 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1605 transitions. Word has length 223 [2022-03-17 23:27:51,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:51,118 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1605 transitions. [2022-03-17 23:27:51,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:51,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1605 transitions. [2022-03-17 23:27:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-17 23:27:51,121 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:51,121 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:51,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:27:51,121 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:51,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash 938283475, now seen corresponding path program 1 times [2022-03-17 23:27:51,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:51,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968341648] [2022-03-17 23:27:51,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:51,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:51,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:51,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:51,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968341648] [2022-03-17 23:27:51,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968341648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:51,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:51,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:51,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450845208] [2022-03-17 23:27:51,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:51,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:51,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:51,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:51,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:51,253 INFO L87 Difference]: Start difference. First operand 1124 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:54,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:56,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:58,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:27:58,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:27:58,624 INFO L93 Difference]: Finished difference Result 2260 states and 3224 transitions. [2022-03-17 23:27:58,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:27:58,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 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 224 [2022-03-17 23:27:58,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:27:58,628 INFO L225 Difference]: With dead ends: 2260 [2022-03-17 23:27:58,628 INFO L226 Difference]: Without dead ends: 1164 [2022-03-17 23:27:58,652 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:27:58,652 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 52 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:27:58,652 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 560 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:27:58,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2022-03-17 23:27:58,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1124. [2022-03-17 23:27:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.4289544235924934) internal successors, (1599), 1119 states have internal predecessors, (1599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1603 transitions. [2022-03-17 23:27:58,676 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1603 transitions. Word has length 224 [2022-03-17 23:27:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:27:58,676 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1603 transitions. [2022-03-17 23:27:58,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:27:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1603 transitions. [2022-03-17 23:27:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-17 23:27:58,679 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:27:58,679 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:27:58,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:27:58,679 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:27:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:27:58,680 INFO L85 PathProgramCache]: Analyzing trace with hash -249721456, now seen corresponding path program 1 times [2022-03-17 23:27:58,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:27:58,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563314738] [2022-03-17 23:27:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:27:58,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:27:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:27:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:27:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:27:58,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:27:58,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563314738] [2022-03-17 23:27:58,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563314738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:27:58,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:27:58,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:27:58,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048101803] [2022-03-17 23:27:58,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:27:58,813 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:27:58,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:27:58,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:27:58,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:27:58,813 INFO L87 Difference]: Start difference. First operand 1124 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:00,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:02,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:04,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:06,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:07,084 INFO L93 Difference]: Finished difference Result 2382 states and 3391 transitions. [2022-03-17 23:28:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:07,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 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 224 [2022-03-17 23:28:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:07,089 INFO L225 Difference]: With dead ends: 2382 [2022-03-17 23:28:07,089 INFO L226 Difference]: Without dead ends: 1286 [2022-03-17 23:28:07,091 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:07,091 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 105 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:07,091 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 334 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-03-17 23:28:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-17 23:28:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1124. [2022-03-17 23:28:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.421805183199285) internal successors, (1591), 1119 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) [2022-03-17 23:28:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1595 transitions. [2022-03-17 23:28:07,117 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1595 transitions. Word has length 224 [2022-03-17 23:28:07,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:07,118 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1595 transitions. [2022-03-17 23:28:07,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1595 transitions. [2022-03-17 23:28:07,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-17 23:28:07,120 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:07,120 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:07,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:28:07,120 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:07,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1302900628, now seen corresponding path program 1 times [2022-03-17 23:28:07,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:07,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764008061] [2022-03-17 23:28:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:07,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:07,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764008061] [2022-03-17 23:28:07,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764008061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:07,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:07,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:07,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300352945] [2022-03-17 23:28:07,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:07,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:07,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:07,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:07,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:07,265 INFO L87 Difference]: Start difference. First operand 1124 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:09,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:09,666 INFO L93 Difference]: Finished difference Result 2252 states and 3194 transitions. [2022-03-17 23:28:09,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:09,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 225 [2022-03-17 23:28:09,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:09,670 INFO L225 Difference]: With dead ends: 2252 [2022-03-17 23:28:09,670 INFO L226 Difference]: Without dead ends: 1156 [2022-03-17 23:28:09,671 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:09,672 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 47 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:09,672 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 554 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:28:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2022-03-17 23:28:09,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1124. [2022-03-17 23:28:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.420017873100983) internal successors, (1589), 1119 states have internal predecessors, (1589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1593 transitions. [2022-03-17 23:28:09,697 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1593 transitions. Word has length 225 [2022-03-17 23:28:09,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:09,698 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1593 transitions. [2022-03-17 23:28:09,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1593 transitions. [2022-03-17 23:28:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-17 23:28:09,700 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:09,700 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:09,700 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:28:09,700 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:09,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash 519324707, now seen corresponding path program 1 times [2022-03-17 23:28:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:09,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444817492] [2022-03-17 23:28:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:09,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:09,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:09,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444817492] [2022-03-17 23:28:09,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444817492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:09,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:09,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:09,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905150602] [2022-03-17 23:28:09,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:09,862 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:09,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:09,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:09,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:09,863 INFO L87 Difference]: Start difference. First operand 1124 states and 1593 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:11,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:12,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:12,258 INFO L93 Difference]: Finished difference Result 2252 states and 3190 transitions. [2022-03-17 23:28:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:12,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2022-03-17 23:28:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:12,263 INFO L225 Difference]: With dead ends: 2252 [2022-03-17 23:28:12,263 INFO L226 Difference]: Without dead ends: 1156 [2022-03-17 23:28:12,265 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:12,265 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 40 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:12,266 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 552 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:28:12,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2022-03-17 23:28:12,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1124. [2022-03-17 23:28:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.418230563002681) internal successors, (1587), 1119 states have internal predecessors, (1587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:12,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1591 transitions. [2022-03-17 23:28:12,290 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1591 transitions. Word has length 227 [2022-03-17 23:28:12,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:12,291 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1591 transitions. [2022-03-17 23:28:12,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:12,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1591 transitions. [2022-03-17 23:28:12,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-17 23:28:12,293 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:12,293 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:12,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:28:12,293 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:12,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:12,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2136203219, now seen corresponding path program 1 times [2022-03-17 23:28:12,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:12,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145228971] [2022-03-17 23:28:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:12,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:12,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:12,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145228971] [2022-03-17 23:28:12,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145228971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:12,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:12,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:12,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367031358] [2022-03-17 23:28:12,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:12,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:12,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:12,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:12,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:12,417 INFO L87 Difference]: Start difference. First operand 1124 states and 1591 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:14,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:14,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:14,829 INFO L93 Difference]: Finished difference Result 2244 states and 3176 transitions. [2022-03-17 23:28:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:14,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 228 [2022-03-17 23:28:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:14,832 INFO L225 Difference]: With dead ends: 2244 [2022-03-17 23:28:14,832 INFO L226 Difference]: Without dead ends: 1148 [2022-03-17 23:28:14,833 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:14,833 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 35 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:14,834 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 544 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:28:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-03-17 23:28:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1124. [2022-03-17 23:28:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.416443252904379) internal successors, (1585), 1119 states have internal predecessors, (1585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1589 transitions. [2022-03-17 23:28:14,860 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1589 transitions. Word has length 228 [2022-03-17 23:28:14,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:14,860 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1589 transitions. [2022-03-17 23:28:14,860 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:14,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1589 transitions. [2022-03-17 23:28:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-17 23:28:14,862 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:14,862 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-03-17 23:28:14,862 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:28:14,863 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:14,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:14,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2097942340, now seen corresponding path program 1 times [2022-03-17 23:28:14,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:14,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278549845] [2022-03-17 23:28:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:14,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:14,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:15,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:15,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278549845] [2022-03-17 23:28:15,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278549845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:15,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:15,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:15,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261164745] [2022-03-17 23:28:15,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:15,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:15,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:15,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:15,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:15,003 INFO L87 Difference]: Start difference. First operand 1124 states and 1589 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:17,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:17,447 INFO L93 Difference]: Finished difference Result 2508 states and 3552 transitions. [2022-03-17 23:28:17,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:17,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 228 [2022-03-17 23:28:17,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:17,450 INFO L225 Difference]: With dead ends: 2508 [2022-03-17 23:28:17,450 INFO L226 Difference]: Without dead ends: 1412 [2022-03-17 23:28:17,451 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:17,451 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 100 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:17,452 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 334 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:28:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-03-17 23:28:17,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1229. [2022-03-17 23:28:17,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.4133986928104576) internal successors, (1730), 1224 states have internal predecessors, (1730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:17,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1734 transitions. [2022-03-17 23:28:17,491 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1734 transitions. Word has length 228 [2022-03-17 23:28:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:17,491 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1734 transitions. [2022-03-17 23:28:17,491 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1734 transitions. [2022-03-17 23:28:17,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-03-17 23:28:17,494 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:17,494 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:17,494 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:28:17,494 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1089527269, now seen corresponding path program 1 times [2022-03-17 23:28:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:17,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55251270] [2022-03-17 23:28:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:17,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:17,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:17,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55251270] [2022-03-17 23:28:17,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55251270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:17,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:17,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131159764] [2022-03-17 23:28:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:17,644 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:17,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:17,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:17,645 INFO L87 Difference]: Start difference. First operand 1229 states and 1734 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:19,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:20,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:20,016 INFO L93 Difference]: Finished difference Result 2450 states and 3458 transitions. [2022-03-17 23:28:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:20,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2022-03-17 23:28:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:20,021 INFO L225 Difference]: With dead ends: 2450 [2022-03-17 23:28:20,021 INFO L226 Difference]: Without dead ends: 1249 [2022-03-17 23:28:20,022 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:20,022 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:20,022 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 538 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:28:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-03-17 23:28:20,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1229. [2022-03-17 23:28:20,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.411764705882353) internal successors, (1728), 1224 states have internal predecessors, (1728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1732 transitions. [2022-03-17 23:28:20,042 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1732 transitions. Word has length 229 [2022-03-17 23:28:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:20,042 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1732 transitions. [2022-03-17 23:28:20,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1732 transitions. [2022-03-17 23:28:20,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-17 23:28:20,044 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:20,044 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:28:20,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:28:20,044 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1676322048, now seen corresponding path program 1 times [2022-03-17 23:28:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:20,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708489594] [2022-03-17 23:28:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:20,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:20,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708489594] [2022-03-17 23:28:20,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708489594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:20,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:20,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:20,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372408824] [2022-03-17 23:28:20,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:20,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:20,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:20,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:20,206 INFO L87 Difference]: Start difference. First operand 1229 states and 1732 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:22,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:22,589 INFO L93 Difference]: Finished difference Result 2450 states and 3454 transitions. [2022-03-17 23:28:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-03-17 23:28:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:22,593 INFO L225 Difference]: With dead ends: 2450 [2022-03-17 23:28:22,593 INFO L226 Difference]: Without dead ends: 1249 [2022-03-17 23:28:22,595 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:22,595 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 28 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:22,596 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 536 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:28:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-03-17 23:28:22,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1229. [2022-03-17 23:28:22,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.4101307189542485) internal successors, (1726), 1224 states have internal predecessors, (1726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:22,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1730 transitions. [2022-03-17 23:28:22,617 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1730 transitions. Word has length 230 [2022-03-17 23:28:22,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:22,618 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1730 transitions. [2022-03-17 23:28:22,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:22,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1730 transitions. [2022-03-17 23:28:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-17 23:28:22,620 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:22,620 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:28:22,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:28:22,620 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:22,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash -8501446, now seen corresponding path program 1 times [2022-03-17 23:28:22,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:22,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78115178] [2022-03-17 23:28:22,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:22,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:22,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:22,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:22,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78115178] [2022-03-17 23:28:22,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78115178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:22,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:22,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:22,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821062080] [2022-03-17 23:28:22,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:22,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:22,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:22,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:22,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:22,779 INFO L87 Difference]: Start difference. First operand 1229 states and 1730 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:24,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:25,154 INFO L93 Difference]: Finished difference Result 2446 states and 3446 transitions. [2022-03-17 23:28:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-03-17 23:28:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:25,155 INFO L225 Difference]: With dead ends: 2446 [2022-03-17 23:28:25,156 INFO L226 Difference]: Without dead ends: 1245 [2022-03-17 23:28:25,157 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:25,157 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 25 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:25,157 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 532 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:28:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-03-17 23:28:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1229. [2022-03-17 23:28:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.408496732026144) internal successors, (1724), 1224 states have internal predecessors, (1724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:25,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1728 transitions. [2022-03-17 23:28:25,184 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1728 transitions. Word has length 231 [2022-03-17 23:28:25,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:25,185 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1728 transitions. [2022-03-17 23:28:25,185 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:25,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1728 transitions. [2022-03-17 23:28:25,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-17 23:28:25,187 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:25,187 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:28:25,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:28:25,187 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:25,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:25,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1801789431, now seen corresponding path program 1 times [2022-03-17 23:28:25,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:25,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791630131] [2022-03-17 23:28:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:25,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:25,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:25,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791630131] [2022-03-17 23:28:25,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791630131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:25,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:25,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:25,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137321158] [2022-03-17 23:28:25,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:25,326 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:25,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:25,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:25,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:25,327 INFO L87 Difference]: Start difference. First operand 1229 states and 1728 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:26,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:28,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:30,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:32,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:33,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:33,195 INFO L93 Difference]: Finished difference Result 2817 states and 3968 transitions. [2022-03-17 23:28:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:33,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-17 23:28:33,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:33,197 INFO L225 Difference]: With dead ends: 2817 [2022-03-17 23:28:33,197 INFO L226 Difference]: Without dead ends: 1616 [2022-03-17 23:28:33,198 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:33,199 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 96 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:33,199 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 336 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-17 23:28:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-03-17 23:28:33,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1445. [2022-03-17 23:28:33,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.4104166666666667) internal successors, (2031), 1440 states have internal predecessors, (2031), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2035 transitions. [2022-03-17 23:28:33,223 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2035 transitions. Word has length 234 [2022-03-17 23:28:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:33,223 INFO L478 AbstractCegarLoop]: Abstraction has 1445 states and 2035 transitions. [2022-03-17 23:28:33,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2035 transitions. [2022-03-17 23:28:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-17 23:28:33,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:33,225 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:28:33,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:28:33,225 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:33,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:33,225 INFO L85 PathProgramCache]: Analyzing trace with hash -658958062, now seen corresponding path program 1 times [2022-03-17 23:28:33,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:33,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916902655] [2022-03-17 23:28:33,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:33,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:33,368 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-17 23:28:33,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:33,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916902655] [2022-03-17 23:28:33,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916902655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:33,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:33,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:33,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580985356] [2022-03-17 23:28:33,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:33,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:33,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:33,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:33,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:33,370 INFO L87 Difference]: Start difference. First operand 1445 states and 2035 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:35,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:35,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:35,747 INFO L93 Difference]: Finished difference Result 2872 states and 4048 transitions. [2022-03-17 23:28:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:35,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 235 [2022-03-17 23:28:35,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:35,749 INFO L225 Difference]: With dead ends: 2872 [2022-03-17 23:28:35,749 INFO L226 Difference]: Without dead ends: 1455 [2022-03-17 23:28:35,750 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:35,750 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 19 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:35,750 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 526 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:28:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-17 23:28:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1445. [2022-03-17 23:28:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.4090277777777778) internal successors, (2029), 1440 states have internal predecessors, (2029), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:35,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2033 transitions. [2022-03-17 23:28:35,776 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2033 transitions. Word has length 235 [2022-03-17 23:28:35,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:35,777 INFO L478 AbstractCegarLoop]: Abstraction has 1445 states and 2033 transitions. [2022-03-17 23:28:35,777 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:35,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2033 transitions. [2022-03-17 23:28:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-17 23:28:35,779 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:35,779 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:35,779 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:28:35,779 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:35,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1135293253, now seen corresponding path program 1 times [2022-03-17 23:28:35,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:35,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963205759] [2022-03-17 23:28:35,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:35,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-17 23:28:36,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:36,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963205759] [2022-03-17 23:28:36,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963205759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:36,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:36,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:28:36,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085159446] [2022-03-17 23:28:36,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:36,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:28:36,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:36,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:28:36,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:36,106 INFO L87 Difference]: Start difference. First operand 1445 states and 2033 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:38,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:38,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:38,952 INFO L93 Difference]: Finished difference Result 3325 states and 4690 transitions. [2022-03-17 23:28:38,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:28:38,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 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 239 [2022-03-17 23:28:38,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:38,954 INFO L225 Difference]: With dead ends: 3325 [2022-03-17 23:28:38,954 INFO L226 Difference]: Without dead ends: 1908 [2022-03-17 23:28:38,956 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-17 23:28:38,956 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 297 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:38,956 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 762 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 761 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-17 23:28:38,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-03-17 23:28:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1511. [2022-03-17 23:28:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1506 states have (on average 1.403054448871182) internal successors, (2113), 1506 states have internal predecessors, (2113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2117 transitions. [2022-03-17 23:28:38,983 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2117 transitions. Word has length 239 [2022-03-17 23:28:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:38,983 INFO L478 AbstractCegarLoop]: Abstraction has 1511 states and 2117 transitions. [2022-03-17 23:28:38,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2117 transitions. [2022-03-17 23:28:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-17 23:28:38,985 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:38,985 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:38,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 23:28:38,986 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2083120634, now seen corresponding path program 1 times [2022-03-17 23:28:38,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:38,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024214099] [2022-03-17 23:28:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 320 proven. 54 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 23:28:39,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:39,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024214099] [2022-03-17 23:28:39,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024214099] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:28:39,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710726839] [2022-03-17 23:28:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:39,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:28:39,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:28:39,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:28:39,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 23:28:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:40,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-17 23:28:40,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:28:40,356 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:28:40,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:28:40,402 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:28:40,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:28:40,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:28:40,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 23:28:40,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 23:28:40,558 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 23:28:40,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 23:28:40,671 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 23:28:40,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 23:28:40,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:28:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 305 proven. 48 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-17 23:28:40,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:28:41,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 23:28:41,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 23:28:43,124 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_13 Int) (v_arrayElimCell_12 Int)) (not (= 8496 (select (select (store |c_#memory_int| v_arrayElimCell_12 (store (select |c_#memory_int| v_arrayElimCell_12) (+ 904 v_arrayElimCell_13) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 23:28:43,252 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-17 23:28:43,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710726839] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:28:43,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:28:43,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 19 [2022-03-17 23:28:43,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417078753] [2022-03-17 23:28:43,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:43,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:43,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:43,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:43,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=264, Unknown=1, NotChecked=32, Total=342 [2022-03-17 23:28:43,254 INFO L87 Difference]: Start difference. First operand 1511 states and 2117 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:45,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:46,922 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_13 Int) (v_arrayElimCell_12 Int)) (not (= 8496 (select (select (store |c_#memory_int| v_arrayElimCell_12 (store (select |c_#memory_int| v_arrayElimCell_12) (+ 904 v_arrayElimCell_13) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8496))) is different from false [2022-03-17 23:28:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:46,955 INFO L93 Difference]: Finished difference Result 3173 states and 4456 transitions. [2022-03-17 23:28:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:46,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-17 23:28:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:46,959 INFO L225 Difference]: With dead ends: 3173 [2022-03-17 23:28:46,959 INFO L226 Difference]: Without dead ends: 1690 [2022-03-17 23:28:46,961 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=51, Invalid=297, Unknown=2, NotChecked=70, Total=420 [2022-03-17 23:28:46,963 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 108 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 247 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:46,963 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 478 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 232 Invalid, 1 Unknown, 247 Unchecked, 2.3s Time] [2022-03-17 23:28:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-03-17 23:28:46,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1445. [2022-03-17 23:28:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.395138888888889) internal successors, (2009), 1440 states have internal predecessors, (2009), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2013 transitions. [2022-03-17 23:28:47,002 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2013 transitions. Word has length 239 [2022-03-17 23:28:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:47,002 INFO L478 AbstractCegarLoop]: Abstraction has 1445 states and 2013 transitions. [2022-03-17 23:28:47,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2013 transitions. [2022-03-17 23:28:47,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-17 23:28:47,005 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:47,005 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:47,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-17 23:28:47,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2022-03-17 23:28:47,205 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:47,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:47,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1064139512, now seen corresponding path program 1 times [2022-03-17 23:28:47,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:47,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108776247] [2022-03-17 23:28:47,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:47,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:47,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 363 proven. 44 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-17 23:28:47,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:47,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108776247] [2022-03-17 23:28:47,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108776247] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:28:47,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338132906] [2022-03-17 23:28:47,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:47,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:28:47,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:28:47,525 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:28:47,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 23:28:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:48,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-17 23:28:48,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:28:48,538 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:28:48,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:28:48,610 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:28:48,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:28:48,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:28:48,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 23:28:48,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 23:28:48,735 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 23:28:48,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 23:28:48,796 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 23:28:48,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 23:28:48,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:28:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 371 proven. 46 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-17 23:28:49,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:28:49,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 23:28:49,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 23:28:51,099 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_23 Int) (v_arrayElimCell_22 Int)) (not (= 8464 (select (select (store |c_#memory_int| v_arrayElimCell_22 (store (select |c_#memory_int| v_arrayElimCell_22) (+ 904 v_arrayElimCell_23) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 23:28:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-17 23:28:51,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338132906] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:28:51,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:28:51,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 7] total 14 [2022-03-17 23:28:51,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105604296] [2022-03-17 23:28:51,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:51,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:51,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:51,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-03-17 23:28:51,222 INFO L87 Difference]: Start difference. First operand 1445 states and 2013 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:53,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:55,540 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_23 Int) (v_arrayElimCell_22 Int)) (not (= 8464 (select (select (store |c_#memory_int| v_arrayElimCell_22 (store (select |c_#memory_int| v_arrayElimCell_22) (+ 904 v_arrayElimCell_23) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8464))) is different from false [2022-03-17 23:28:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:55,563 INFO L93 Difference]: Finished difference Result 3246 states and 4529 transitions. [2022-03-17 23:28:55,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:55,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-03-17 23:28:55,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:55,567 INFO L225 Difference]: With dead ends: 3246 [2022-03-17 23:28:55,567 INFO L226 Difference]: Without dead ends: 1829 [2022-03-17 23:28:55,569 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-03-17 23:28:55,571 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 109 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 239 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:55,571 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 478 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 236 Invalid, 1 Unknown, 239 Unchecked, 2.3s Time] [2022-03-17 23:28:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2022-03-17 23:28:55,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1499. [2022-03-17 23:28:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1494 states have (on average 1.390896921017403) internal successors, (2078), 1494 states have internal predecessors, (2078), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2082 transitions. [2022-03-17 23:28:55,613 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2082 transitions. Word has length 256 [2022-03-17 23:28:55,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:55,613 INFO L478 AbstractCegarLoop]: Abstraction has 1499 states and 2082 transitions. [2022-03-17 23:28:55,613 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2082 transitions. [2022-03-17 23:28:55,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-17 23:28:55,615 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:55,616 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:55,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 23:28:55,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:28:55,831 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:55,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:55,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1537658455, now seen corresponding path program 1 times [2022-03-17 23:28:55,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:55,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821432454] [2022-03-17 23:28:55,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:55,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:56,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:56,233 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 371 proven. 123 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-17 23:28:56,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:56,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821432454] [2022-03-17 23:28:56,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821432454] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:28:56,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814959366] [2022-03-17 23:28:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:56,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:28:56,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:28:56,235 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:28:56,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 23:28:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:57,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-17 23:28:57,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:28:57,228 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:28:57,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:28:57,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:28:57,361 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-17 23:28:57,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 38 [2022-03-17 23:28:57,393 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-03-17 23:28:57,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 26 [2022-03-17 23:28:57,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:28:57,507 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-17 23:28:57,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2022-03-17 23:28:57,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-03-17 23:28:57,528 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 23:28:57,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-17 23:28:57,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:28:57,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:28:57,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:28:57,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-03-17 23:28:57,624 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-03-17 23:28:57,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 42 [2022-03-17 23:28:57,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:28:57,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2022-03-17 23:28:57,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:28:57,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2022-03-17 23:28:57,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:28:57,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 23 [2022-03-17 23:28:57,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 23:28:57,925 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-17 23:28:57,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-03-17 23:28:58,031 INFO L356 Elim1Store]: treesize reduction 120, result has 24.1 percent of original size [2022-03-17 23:28:58,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 76 [2022-03-17 23:28:58,287 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:28:58,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 23 [2022-03-17 23:28:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 365 proven. 112 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-17 23:28:58,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:28:58,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-03-17 23:28:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-17 23:28:58,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814959366] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:28:58,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:28:58,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 13] total 26 [2022-03-17 23:28:58,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990054030] [2022-03-17 23:28:58,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:58,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:58,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:58,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:58,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2022-03-17 23:28:58,769 INFO L87 Difference]: Start difference. First operand 1499 states and 2082 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:59,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:00,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:00,197 INFO L93 Difference]: Finished difference Result 3201 states and 4454 transitions. [2022-03-17 23:29:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:29:00,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-03-17 23:29:00,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:00,200 INFO L225 Difference]: With dead ends: 3201 [2022-03-17 23:29:00,200 INFO L226 Difference]: Without dead ends: 1730 [2022-03-17 23:29:00,202 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-03-17 23:29:00,202 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 121 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:00,202 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 478 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 240 Invalid, 0 Unknown, 79 Unchecked, 1.4s Time] [2022-03-17 23:29:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2022-03-17 23:29:00,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1442. [2022-03-17 23:29:00,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1437 states have (on average 1.3917884481558802) internal successors, (2000), 1437 states have internal predecessors, (2000), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2004 transitions. [2022-03-17 23:29:00,240 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2004 transitions. Word has length 256 [2022-03-17 23:29:00,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:00,241 INFO L478 AbstractCegarLoop]: Abstraction has 1442 states and 2004 transitions. [2022-03-17 23:29:00,241 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:00,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2004 transitions. [2022-03-17 23:29:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-17 23:29:00,242 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:00,243 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:00,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-17 23:29:00,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:29:00,443 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:00,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1554797671, now seen corresponding path program 1 times [2022-03-17 23:29:00,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:00,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048398162] [2022-03-17 23:29:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:00,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:00,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-17 23:29:00,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:00,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048398162] [2022-03-17 23:29:00,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048398162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:00,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:00,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:29:00,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846053220] [2022-03-17 23:29:00,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:00,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:29:00,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:00,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:29:00,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:00,699 INFO L87 Difference]: Start difference. First operand 1442 states and 2004 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:02,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:03,369 INFO L93 Difference]: Finished difference Result 3153 states and 4390 transitions. [2022-03-17 23:29:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 23:29:03,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 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 257 [2022-03-17 23:29:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:03,373 INFO L225 Difference]: With dead ends: 3153 [2022-03-17 23:29:03,373 INFO L226 Difference]: Without dead ends: 1739 [2022-03-17 23:29:03,375 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:29:03,375 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 203 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:03,376 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 597 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 581 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 23:29:03,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2022-03-17 23:29:03,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1502. [2022-03-17 23:29:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1497 states have (on average 1.3841015364061455) internal successors, (2072), 1497 states have internal predecessors, (2072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2076 transitions. [2022-03-17 23:29:03,437 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2076 transitions. Word has length 257 [2022-03-17 23:29:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:03,437 INFO L478 AbstractCegarLoop]: Abstraction has 1502 states and 2076 transitions. [2022-03-17 23:29:03,437 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2076 transitions. [2022-03-17 23:29:03,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-17 23:29:03,440 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:03,440 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:03,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 23:29:03,440 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash 239387674, now seen corresponding path program 1 times [2022-03-17 23:29:03,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:03,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167603788] [2022-03-17 23:29:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:03,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 409 proven. 69 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 23:29:03,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:03,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167603788] [2022-03-17 23:29:03,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167603788] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:29:03,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969326569] [2022-03-17 23:29:03,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:03,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:29:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:29:03,800 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:29:03,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 23:29:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:04,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-17 23:29:04,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:29:04,881 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:29:04,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:29:04,919 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:29:04,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:29:05,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:29:05,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:29:05,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 23:29:05,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 23:29:05,067 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 23:29:05,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-17 23:29:05,127 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 23:29:05,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 23:29:05,688 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:29:05,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2022-03-17 23:29:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 376 proven. 47 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-17 23:29:05,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:29:06,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-03-17 23:29:06,757 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_56 Int)) (not (= 8465 (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)))) (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ 904 v_arrayElimCell_56) 3))) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 23:29:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-17 23:29:06,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969326569] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:29:06,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:29:06,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 19 [2022-03-17 23:29:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612246618] [2022-03-17 23:29:06,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:06,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:06,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:06,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=264, Unknown=1, NotChecked=32, Total=342 [2022-03-17 23:29:06,878 INFO L87 Difference]: Start difference. First operand 1502 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:08,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:09,262 INFO L93 Difference]: Finished difference Result 3205 states and 4440 transitions. [2022-03-17 23:29:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:29:09,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-17 23:29:09,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:09,265 INFO L225 Difference]: With dead ends: 3205 [2022-03-17 23:29:09,265 INFO L226 Difference]: Without dead ends: 1731 [2022-03-17 23:29:09,267 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 513 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=296, Unknown=1, NotChecked=34, Total=380 [2022-03-17 23:29:09,268 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 116 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:09,268 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 441 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 241 Invalid, 1 Unknown, 255 Unchecked, 2.3s Time] [2022-03-17 23:29:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-03-17 23:29:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1443. [2022-03-17 23:29:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1438 states have (on average 1.3748261474269818) internal successors, (1977), 1438 states have internal predecessors, (1977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1981 transitions. [2022-03-17 23:29:09,334 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1981 transitions. Word has length 257 [2022-03-17 23:29:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:09,334 INFO L478 AbstractCegarLoop]: Abstraction has 1443 states and 1981 transitions. [2022-03-17 23:29:09,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1981 transitions. [2022-03-17 23:29:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 23:29:09,337 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:09,337 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:09,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 23:29:09,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-03-17 23:29:09,559 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:09,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:09,560 INFO L85 PathProgramCache]: Analyzing trace with hash 259054701, now seen corresponding path program 1 times [2022-03-17 23:29:09,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:09,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682698093] [2022-03-17 23:29:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:09,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-03-17 23:29:09,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:09,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682698093] [2022-03-17 23:29:09,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682698093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:09,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:09,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 23:29:09,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240999328] [2022-03-17 23:29:09,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:09,974 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:29:09,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:09,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:29:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:29:09,975 INFO L87 Difference]: Start difference. First operand 1443 states and 1981 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:11,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:12,434 INFO L93 Difference]: Finished difference Result 2879 states and 3954 transitions. [2022-03-17 23:29:12,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:29:12,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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 268 [2022-03-17 23:29:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:12,437 INFO L225 Difference]: With dead ends: 2879 [2022-03-17 23:29:12,438 INFO L226 Difference]: Without dead ends: 1443 [2022-03-17 23:29:12,440 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:29:12,440 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:12,440 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:29:12,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-03-17 23:29:12,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2022-03-17 23:29:12,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1438 states have (on average 1.3741307371349096) internal successors, (1976), 1438 states have internal predecessors, (1976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1980 transitions. [2022-03-17 23:29:12,482 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1980 transitions. Word has length 268 [2022-03-17 23:29:12,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:12,483 INFO L478 AbstractCegarLoop]: Abstraction has 1443 states and 1980 transitions. [2022-03-17 23:29:12,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1980 transitions. [2022-03-17 23:29:12,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 23:29:12,485 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:12,486 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:12,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 23:29:12,486 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:12,486 INFO L85 PathProgramCache]: Analyzing trace with hash 743691532, now seen corresponding path program 1 times [2022-03-17 23:29:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:12,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675278099] [2022-03-17 23:29:12,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:12,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:13,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 302 proven. 225 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-17 23:29:13,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:13,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675278099] [2022-03-17 23:29:13,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675278099] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:29:13,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246478548] [2022-03-17 23:29:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:13,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:29:13,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:29:13,640 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:29:13,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-17 23:29:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:15,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 195 conjunts are in the unsatisfiable core [2022-03-17 23:29:15,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:29:15,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,467 INFO L356 Elim1Store]: treesize reduction 776, result has 6.6 percent of original size [2022-03-17 23:29:17,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 15676 treesize of output 13409 [2022-03-17 23:29:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:29:17,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5980 treesize of output 875