/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.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 10:01:39,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 10:01:39,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 10:01:39,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 10:01:39,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 10:01:39,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 10:01:39,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 10:01:39,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 10:01:39,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 10:01:39,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 10:01:39,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 10:01:39,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 10:01:39,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 10:01:39,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 10:01:39,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 10:01:39,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 10:01:39,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 10:01:39,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 10:01:39,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 10:01:39,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 10:01:39,518 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 10:01:39,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 10:01:39,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 10:01:39,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 10:01:39,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 10:01:39,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 10:01:39,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 10:01:39,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 10:01:39,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 10:01:39,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 10:01:39,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-05 10:01:39,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 10:01:39,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 10:01:39,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 10:01:39,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-05 10:01:39,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 10:01:39,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 10:01:39,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-05 10:01:39,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-05 10:01:39,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-05 10:01:39,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-05 10:01:39,553 INFO L138 SettingsManager]: * Use SBE=true [2022-04-05 10:01:39,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 10:01:39,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 10:01:39,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 10:01:39,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 10:01:39,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 10:01:39,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 10:01:39,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 10:01:39,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-05 10:01:39,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-05 10:01:39,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 10:01:39,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-05 10:01:39,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-05 10:01:39,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-05 10:01:39,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-05 10:01:39,557 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 10:01:39,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 10:01:39,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 10:01:39,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 10:01:39,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 10:01:39,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 10:01:39,811 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 10:01:39,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-04-05 10:01:39,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b828f407c/35b8a008812e4f559bcdfe295effacf3/FLAGee909417d [2022-04-05 10:01:40,430 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 10:01:40,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-04-05 10:01:40,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b828f407c/35b8a008812e4f559bcdfe295effacf3/FLAGee909417d [2022-04-05 10:01:40,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b828f407c/35b8a008812e4f559bcdfe295effacf3 [2022-04-05 10:01:40,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 10:01:40,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 10:01:40,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 10:01:40,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 10:01:40,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 10:01:40,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 10:01:40" (1/1) ... [2022-04-05 10:01:40,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8b157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:40, skipping insertion in model container [2022-04-05 10:01:40,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 10:01:40" (1/1) ... [2022-04-05 10:01:40,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 10:01:40,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 10:01:41,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c[77660,77673] [2022-04-05 10:01:41,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 10:01:41,373 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 10:01:41,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c[77660,77673] [2022-04-05 10:01:41,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 10:01:41,504 INFO L208 MainTranslator]: Completed translation [2022-04-05 10:01:41,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41 WrapperNode [2022-04-05 10:01:41,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 10:01:41,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 10:01:41,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 10:01:41,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 10:01:41,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 10:01:41,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 10:01:41,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 10:01:41,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 10:01:41,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (1/1) ... [2022-04-05 10:01:41,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 10:01:41,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:01:41,675 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) [2022-04-05 10:01:41,677 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 [2022-04-05 10:01:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 10:01:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 10:01:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 10:01:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 10:01:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 10:01:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 10:01:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 10:01:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 10:01:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 10:01:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 10:01:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 10:01:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 10:01:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 10:01:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 10:01:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 10:01:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 10:01:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 10:01:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 10:01:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 10:01:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 10:01:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 10:01:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 10:01:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 10:01:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 10:01:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 10:01:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 10:01:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 10:01:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 10:01:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 10:01:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 10:01:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 10:01:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 10:01:41,849 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 10:01:41,850 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 10:01:42,865 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 10:01:43,253 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 10:01:43,253 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 10:01:43,264 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 10:01:43,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 10:01:43,279 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 10:01:43,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 10:01:43 BoogieIcfgContainer [2022-04-05 10:01:43,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 10:01:43,282 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 10:01:43,282 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 10:01:43,283 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 10:01:43,286 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 10:01:43" (1/1) ... [2022-04-05 10:01:43,288 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-05 10:01:43,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 10:01:43 BasicIcfg [2022-04-05 10:01:43,327 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 10:01:43,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 10:01:43,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 10:01:43,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 10:01:43,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 10:01:40" (1/4) ... [2022-04-05 10:01:43,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518d9f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 10:01:43, skipping insertion in model container [2022-04-05 10:01:43,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:01:41" (2/4) ... [2022-04-05 10:01:43,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518d9f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 10:01:43, skipping insertion in model container [2022-04-05 10:01:43,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 10:01:43" (3/4) ... [2022-04-05 10:01:43,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518d9f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 10:01:43, skipping insertion in model container [2022-04-05 10:01:43,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 10:01:43" (4/4) ... [2022-04-05 10:01:43,334 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.cqvasr [2022-04-05 10:01:43,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-05 10:01:43,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 10:01:43,375 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 10:01:43,380 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 [2022-04-05 10:01:43,380 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 10:01:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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) [2022-04-05 10:01:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 10:01:43,404 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:43,405 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:43,405 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:43,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:43,409 INFO L85 PathProgramCache]: Analyzing trace with hash -359617006, now seen corresponding path program 1 times [2022-04-05 10:01:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:43,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567950645] [2022-04-05 10:01:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:43,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:43,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:43,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:43,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567950645] [2022-04-05 10:01:43,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567950645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:43,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:43,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:43,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016699363] [2022-04-05 10:01:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:43,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:43,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:43,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:43,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:43,913 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:47,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:48,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:49,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:49,316 INFO L93 Difference]: Finished difference Result 352 states and 596 transitions. [2022-04-05 10:01:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:49,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-05 10:01:49,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:49,328 INFO L225 Difference]: With dead ends: 352 [2022-04-05 10:01:49,328 INFO L226 Difference]: Without dead ends: 179 [2022-04-05 10:01:49,330 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:49,342 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 34 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:49,343 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 661 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 10:01:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-04-05 10:01:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2022-04-05 10:01:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5796178343949046) internal successors, (248), 157 states have internal predecessors, (248), 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) [2022-04-05 10:01:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 252 transitions. [2022-04-05 10:01:49,407 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 252 transitions. Word has length 51 [2022-04-05 10:01:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:49,407 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 252 transitions. [2022-04-05 10:01:49,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 252 transitions. [2022-04-05 10:01:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 10:01:49,410 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:49,410 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:49,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 10:01:49,410 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:49,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:49,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1602858961, now seen corresponding path program 1 times [2022-04-05 10:01:49,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:49,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232164168] [2022-04-05 10:01:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:49,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:49,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:49,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232164168] [2022-04-05 10:01:49,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232164168] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:49,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:49,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:49,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111005043] [2022-04-05 10:01:49,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:49,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:49,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:49,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:49,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:49,683 INFO L87 Difference]: Start difference. First operand 162 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:51,041 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 [] [2022-04-05 10:01:53,059 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 [] [2022-04-05 10:01:55,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:55,114 INFO L93 Difference]: Finished difference Result 315 states and 487 transitions. [2022-04-05 10:01:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:55,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 10:01:55,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:55,116 INFO L225 Difference]: With dead ends: 315 [2022-04-05 10:01:55,116 INFO L226 Difference]: Without dead ends: 179 [2022-04-05 10:01:55,117 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:55,118 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 24 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:55,119 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 537 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 10:01:55,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-04-05 10:01:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2022-04-05 10:01:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5732484076433122) internal successors, (247), 157 states have internal predecessors, (247), 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) [2022-04-05 10:01:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 251 transitions. [2022-04-05 10:01:55,133 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 251 transitions. Word has length 64 [2022-04-05 10:01:55,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:55,133 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 251 transitions. [2022-04-05 10:01:55,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:55,133 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 251 transitions. [2022-04-05 10:01:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 10:01:55,135 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:55,135 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:55,136 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 10:01:55,136 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -704515848, now seen corresponding path program 1 times [2022-04-05 10:01:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:55,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455360006] [2022-04-05 10:01:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:55,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:55,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:55,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455360006] [2022-04-05 10:01:55,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455360006] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:55,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:55,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:55,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740332292] [2022-04-05 10:01:55,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:55,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:55,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:55,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:55,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:55,299 INFO L87 Difference]: Start difference. First operand 162 states and 251 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) [2022-04-05 10:01:58,860 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 [] [2022-04-05 10:01:59,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:59,635 INFO L93 Difference]: Finished difference Result 314 states and 485 transitions. [2022-04-05 10:01:59,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:59,636 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 [2022-04-05 10:01:59,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:59,638 INFO L225 Difference]: With dead ends: 314 [2022-04-05 10:01:59,638 INFO L226 Difference]: Without dead ends: 178 [2022-04-05 10:01:59,639 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:59,639 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 28 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:59,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 539 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 10:01:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-04-05 10:01:59,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 162. [2022-04-05 10:01:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5668789808917198) internal successors, (246), 157 states have internal predecessors, (246), 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) [2022-04-05 10:01:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 250 transitions. [2022-04-05 10:01:59,648 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 250 transitions. Word has length 65 [2022-04-05 10:01:59,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:59,648 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 250 transitions. [2022-04-05 10:01:59,648 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) [2022-04-05 10:01:59,648 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 250 transitions. [2022-04-05 10:01:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 10:01:59,650 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:59,650 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:59,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 10:01:59,650 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:59,651 INFO L85 PathProgramCache]: Analyzing trace with hash 257305816, now seen corresponding path program 1 times [2022-04-05 10:01:59,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:59,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648066328] [2022-04-05 10:01:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:59,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:59,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:59,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648066328] [2022-04-05 10:01:59,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648066328] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:59,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:59,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:59,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826911363] [2022-04-05 10:01:59,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:59,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:59,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:59,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:59,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:59,791 INFO L87 Difference]: Start difference. First operand 162 states and 250 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) [2022-04-05 10:02:04,226 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 [] [2022-04-05 10:02:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:04,674 INFO L93 Difference]: Finished difference Result 314 states and 484 transitions. [2022-04-05 10:02:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:04,675 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 [2022-04-05 10:02:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:04,676 INFO L225 Difference]: With dead ends: 314 [2022-04-05 10:02:04,676 INFO L226 Difference]: Without dead ends: 178 [2022-04-05 10:02:04,677 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:04,678 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 26 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:04,678 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 539 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 10:02:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-04-05 10:02:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 162. [2022-04-05 10:02:04,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5605095541401275) internal successors, (245), 157 states have internal predecessors, (245), 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) [2022-04-05 10:02:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 249 transitions. [2022-04-05 10:02:04,685 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 249 transitions. Word has length 65 [2022-04-05 10:02:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:04,685 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 249 transitions. [2022-04-05 10:02:04,685 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) [2022-04-05 10:02:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 249 transitions. [2022-04-05 10:02:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 10:02:04,687 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:04,687 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:04,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 10:02:04,687 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1845016728, now seen corresponding path program 1 times [2022-04-05 10:02:04,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:04,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814071672] [2022-04-05 10:02:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:04,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:04,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:04,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814071672] [2022-04-05 10:02:04,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814071672] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:04,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:04,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:04,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118295172] [2022-04-05 10:02:04,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:04,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:04,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:04,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:04,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:04,821 INFO L87 Difference]: Start difference. First operand 162 states and 249 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) [2022-04-05 10:02:06,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:08,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:11,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:11,778 INFO L93 Difference]: Finished difference Result 424 states and 663 transitions. [2022-04-05 10:02:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:11,778 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 [2022-04-05 10:02:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:11,780 INFO L225 Difference]: With dead ends: 424 [2022-04-05 10:02:11,780 INFO L226 Difference]: Without dead ends: 288 [2022-04-05 10:02:11,780 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:11,781 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 160 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:11,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 396 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 10:02:11,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-04-05 10:02:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 179. [2022-04-05 10:02:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5632183908045978) internal successors, (272), 174 states have internal predecessors, (272), 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) [2022-04-05 10:02:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 276 transitions. [2022-04-05 10:02:11,789 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 276 transitions. Word has length 65 [2022-04-05 10:02:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:11,790 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 276 transitions. [2022-04-05 10:02:11,790 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) [2022-04-05 10:02:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 276 transitions. [2022-04-05 10:02:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 10:02:11,791 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:11,791 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:11,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 10:02:11,792 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:11,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:11,792 INFO L85 PathProgramCache]: Analyzing trace with hash -87401096, now seen corresponding path program 1 times [2022-04-05 10:02:11,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:11,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504424190] [2022-04-05 10:02:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:11,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:11,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:11,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504424190] [2022-04-05 10:02:11,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504424190] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:11,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:11,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:11,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890195691] [2022-04-05 10:02:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:11,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:11,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:11,906 INFO L87 Difference]: Start difference. First operand 179 states and 276 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) [2022-04-05 10:02:14,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:16,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:18,483 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 [] [2022-04-05 10:02:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:18,905 INFO L93 Difference]: Finished difference Result 345 states and 535 transitions. [2022-04-05 10:02:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:18,906 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 [2022-04-05 10:02:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:18,907 INFO L225 Difference]: With dead ends: 345 [2022-04-05 10:02:18,907 INFO L226 Difference]: Without dead ends: 192 [2022-04-05 10:02:18,908 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:18,908 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:18,909 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 371 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 10:02:18,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-04-05 10:02:18,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 179. [2022-04-05 10:02:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5574712643678161) internal successors, (271), 174 states have internal predecessors, (271), 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) [2022-04-05 10:02:18,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 275 transitions. [2022-04-05 10:02:18,916 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 275 transitions. Word has length 65 [2022-04-05 10:02:18,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:18,916 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 275 transitions. [2022-04-05 10:02:18,916 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) [2022-04-05 10:02:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 275 transitions. [2022-04-05 10:02:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 10:02:18,918 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:18,919 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:18,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 10:02:18,919 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:18,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:18,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1229949233, now seen corresponding path program 1 times [2022-04-05 10:02:18,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:18,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971176852] [2022-04-05 10:02:18,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:18,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:19,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:19,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:19,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971176852] [2022-04-05 10:02:19,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971176852] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:19,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:19,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412334174] [2022-04-05 10:02:19,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:19,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:19,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:19,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:19,068 INFO L87 Difference]: Start difference. First operand 179 states and 275 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) [2022-04-05 10:02:21,078 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 [] [2022-04-05 10:02:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:21,680 INFO L93 Difference]: Finished difference Result 441 states and 688 transitions. [2022-04-05 10:02:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:21,685 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 [2022-04-05 10:02:21,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:21,686 INFO L225 Difference]: With dead ends: 441 [2022-04-05 10:02:21,687 INFO L226 Difference]: Without dead ends: 288 [2022-04-05 10:02:21,687 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:21,688 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 163 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:21,688 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 396 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 10:02:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-04-05 10:02:21,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 179. [2022-04-05 10:02:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5459770114942528) internal successors, (269), 174 states have internal predecessors, (269), 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) [2022-04-05 10:02:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 273 transitions. [2022-04-05 10:02:21,694 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 273 transitions. Word has length 66 [2022-04-05 10:02:21,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:21,694 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 273 transitions. [2022-04-05 10:02:21,694 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) [2022-04-05 10:02:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 273 transitions. [2022-04-05 10:02:21,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 10:02:21,694 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:21,695 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:21,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 10:02:21,695 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:21,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash -506858700, now seen corresponding path program 1 times [2022-04-05 10:02:21,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:21,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143054450] [2022-04-05 10:02:21,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:21,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:21,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143054450] [2022-04-05 10:02:21,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143054450] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:21,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:21,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:21,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344817646] [2022-04-05 10:02:21,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:21,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:21,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:21,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:21,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:21,805 INFO L87 Difference]: Start difference. First operand 179 states and 273 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) [2022-04-05 10:02:23,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:25,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:27,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:29,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:29,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:29,587 INFO L93 Difference]: Finished difference Result 345 states and 531 transitions. [2022-04-05 10:02:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:29,587 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 [2022-04-05 10:02:29,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:29,588 INFO L225 Difference]: With dead ends: 345 [2022-04-05 10:02:29,588 INFO L226 Difference]: Without dead ends: 192 [2022-04-05 10:02:29,589 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:29,589 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:29,589 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-04-05 10:02:29,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-04-05 10:02:29,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 179. [2022-04-05 10:02:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5402298850574712) internal successors, (268), 174 states have internal predecessors, (268), 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) [2022-04-05 10:02:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 272 transitions. [2022-04-05 10:02:29,595 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 272 transitions. Word has length 67 [2022-04-05 10:02:29,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:29,595 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 272 transitions. [2022-04-05 10:02:29,595 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) [2022-04-05 10:02:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 272 transitions. [2022-04-05 10:02:29,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 10:02:29,596 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:29,596 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:29,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 10:02:29,596 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash -952112884, now seen corresponding path program 1 times [2022-04-05 10:02:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:29,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858381736] [2022-04-05 10:02:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:29,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:29,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:29,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858381736] [2022-04-05 10:02:29,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858381736] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:29,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:29,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:29,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766026581] [2022-04-05 10:02:29,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:29,700 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:29,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:29,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:29,700 INFO L87 Difference]: Start difference. First operand 179 states and 272 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) [2022-04-05 10:02:31,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:33,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:34,390 INFO L93 Difference]: Finished difference Result 335 states and 517 transitions. [2022-04-05 10:02:34,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:34,390 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 [2022-04-05 10:02:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:34,392 INFO L225 Difference]: With dead ends: 335 [2022-04-05 10:02:34,392 INFO L226 Difference]: Without dead ends: 182 [2022-04-05 10:02:34,392 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:34,393 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:34,393 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 559 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 10:02:34,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-05 10:02:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2022-04-05 10:02:34,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5344827586206897) internal successors, (267), 174 states have internal predecessors, (267), 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) [2022-04-05 10:02:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2022-04-05 10:02:34,398 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 68 [2022-04-05 10:02:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:34,398 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2022-04-05 10:02:34,398 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) [2022-04-05 10:02:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2022-04-05 10:02:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 10:02:34,399 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:34,399 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:34,399 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 10:02:34,399 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:34,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:34,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1316823101, now seen corresponding path program 1 times [2022-04-05 10:02:34,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:34,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429355361] [2022-04-05 10:02:34,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:34,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:34,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:34,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:34,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429355361] [2022-04-05 10:02:34,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429355361] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:34,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:34,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:34,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368924185] [2022-04-05 10:02:34,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:34,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:34,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:34,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:34,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:34,525 INFO L87 Difference]: Start difference. First operand 179 states and 271 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) [2022-04-05 10:02:35,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:37,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:39,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:41,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:42,097 INFO L93 Difference]: Finished difference Result 459 states and 711 transitions. [2022-04-05 10:02:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:42,098 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 [2022-04-05 10:02:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:42,099 INFO L225 Difference]: With dead ends: 459 [2022-04-05 10:02:42,100 INFO L226 Difference]: Without dead ends: 306 [2022-04-05 10:02:42,100 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:42,101 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 137 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:42,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 496 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 10:02:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-04-05 10:02:42,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 219. [2022-04-05 10:02:42,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5794392523364487) internal successors, (338), 214 states have internal predecessors, (338), 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) [2022-04-05 10:02:42,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 342 transitions. [2022-04-05 10:02:42,107 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 342 transitions. Word has length 68 [2022-04-05 10:02:42,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:42,107 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 342 transitions. [2022-04-05 10:02:42,107 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) [2022-04-05 10:02:42,108 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 342 transitions. [2022-04-05 10:02:42,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 10:02:42,108 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:42,108 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:42,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 10:02:42,109 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:42,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:42,109 INFO L85 PathProgramCache]: Analyzing trace with hash 381885929, now seen corresponding path program 1 times [2022-04-05 10:02:42,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:42,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323485697] [2022-04-05 10:02:42,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:42,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:42,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:42,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:42,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323485697] [2022-04-05 10:02:42,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323485697] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:42,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:42,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:42,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049175403] [2022-04-05 10:02:42,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:42,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:42,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:42,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:42,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:42,238 INFO L87 Difference]: Start difference. First operand 219 states and 342 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) [2022-04-05 10:02:44,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:46,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:47,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:47,613 INFO L93 Difference]: Finished difference Result 455 states and 718 transitions. [2022-04-05 10:02:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:47,614 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 [2022-04-05 10:02:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:47,615 INFO L225 Difference]: With dead ends: 455 [2022-04-05 10:02:47,615 INFO L226 Difference]: Without dead ends: 262 [2022-04-05 10:02:47,616 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:47,616 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 32 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:47,617 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 557 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 10:02:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-04-05 10:02:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 241. [2022-04-05 10:02:47,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.5847457627118644) internal successors, (374), 236 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) [2022-04-05 10:02:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 378 transitions. [2022-04-05 10:02:47,623 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 378 transitions. Word has length 69 [2022-04-05 10:02:47,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:47,623 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 378 transitions. [2022-04-05 10:02:47,623 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) [2022-04-05 10:02:47,623 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 378 transitions. [2022-04-05 10:02:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-05 10:02:47,624 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:47,624 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:47,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 10:02:47,624 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:47,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash -402147550, now seen corresponding path program 1 times [2022-04-05 10:02:47,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:47,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606324724] [2022-04-05 10:02:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:47,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:47,747 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:02:47,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:47,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606324724] [2022-04-05 10:02:47,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606324724] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:47,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:47,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:47,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934254207] [2022-04-05 10:02:47,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:47,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:47,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:47,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:47,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:47,748 INFO L87 Difference]: Start difference. First operand 241 states and 378 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) [2022-04-05 10:02:48,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:51,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:53,507 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 [] [2022-04-05 10:02:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:53,927 INFO L93 Difference]: Finished difference Result 475 states and 751 transitions. [2022-04-05 10:02:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:53,928 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 82 [2022-04-05 10:02:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:53,929 INFO L225 Difference]: With dead ends: 475 [2022-04-05 10:02:53,929 INFO L226 Difference]: Without dead ends: 260 [2022-04-05 10:02:53,930 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:53,930 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 37 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:53,931 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 561 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 10:02:53,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-04-05 10:02:53,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 241. [2022-04-05 10:02:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.5805084745762712) internal successors, (373), 236 states have internal predecessors, (373), 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) [2022-04-05 10:02:53,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 377 transitions. [2022-04-05 10:02:53,937 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 377 transitions. Word has length 82 [2022-04-05 10:02:53,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:53,937 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 377 transitions. [2022-04-05 10:02:53,937 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) [2022-04-05 10:02:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 377 transitions. [2022-04-05 10:02:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 10:02:53,938 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:53,938 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:53,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 10:02:53,939 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash 515503875, now seen corresponding path program 1 times [2022-04-05 10:02:53,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:53,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169231708] [2022-04-05 10:02:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:54,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:54,054 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 10:02:54,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:54,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169231708] [2022-04-05 10:02:54,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169231708] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:54,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:54,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:54,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657271184] [2022-04-05 10:02:54,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:54,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:54,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:54,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:54,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:54,056 INFO L87 Difference]: Start difference. First operand 241 states and 377 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:56,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:58,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:00,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:00,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:00,496 INFO L93 Difference]: Finished difference Result 485 states and 766 transitions. [2022-04-05 10:03:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:00,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-05 10:03:00,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:00,498 INFO L225 Difference]: With dead ends: 485 [2022-04-05 10:03:00,499 INFO L226 Difference]: Without dead ends: 270 [2022-04-05 10:03:00,499 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:00,500 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 21 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:00,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 626 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 415 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-05 10:03:00,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-04-05 10:03:00,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 257. [2022-04-05 10:03:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5793650793650793) internal successors, (398), 252 states have internal predecessors, (398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 402 transitions. [2022-04-05 10:03:00,506 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 402 transitions. Word has length 83 [2022-04-05 10:03:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:00,506 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 402 transitions. [2022-04-05 10:03:00,507 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:00,507 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 402 transitions. [2022-04-05 10:03:00,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 10:03:00,507 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:00,507 INFO L499 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] [2022-04-05 10:03:00,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 10:03:00,508 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:00,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:00,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1828775293, now seen corresponding path program 1 times [2022-04-05 10:03:00,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:00,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393800879] [2022-04-05 10:03:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:00,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:03:00,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:00,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393800879] [2022-04-05 10:03:00,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393800879] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:00,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:00,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:00,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730721688] [2022-04-05 10:03:00,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:00,620 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:00,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:00,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:00,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:00,621 INFO L87 Difference]: Start difference. First operand 257 states and 402 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) [2022-04-05 10:03:02,630 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 [] [2022-04-05 10:03:03,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:03,016 INFO L93 Difference]: Finished difference Result 506 states and 798 transitions. [2022-04-05 10:03:03,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:03,017 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 [2022-04-05 10:03:03,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:03,018 INFO L225 Difference]: With dead ends: 506 [2022-04-05 10:03:03,018 INFO L226 Difference]: Without dead ends: 275 [2022-04-05 10:03:03,019 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:03,020 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 34 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:03,020 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 563 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:03:03,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-04-05 10:03:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 257. [2022-04-05 10:03:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5753968253968254) internal successors, (397), 252 states have internal predecessors, (397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 401 transitions. [2022-04-05 10:03:03,032 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 401 transitions. Word has length 83 [2022-04-05 10:03:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:03,033 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 401 transitions. [2022-04-05 10:03:03,033 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) [2022-04-05 10:03:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 401 transitions. [2022-04-05 10:03:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 10:03:03,034 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:03,034 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:03,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 10:03:03,034 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1697462397, now seen corresponding path program 1 times [2022-04-05 10:03:03,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:03,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077013621] [2022-04-05 10:03:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:03,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-05 10:03:03,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:03,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077013621] [2022-04-05 10:03:03,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077013621] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:03,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:03,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 10:03:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364163045] [2022-04-05 10:03:03,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:03,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 10:03:03,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 10:03:03,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:03,179 INFO L87 Difference]: Start difference. First operand 257 states and 401 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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) [2022-04-05 10:03:04,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:05,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:07,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:09,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:10,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:10,679 INFO L93 Difference]: Finished difference Result 497 states and 784 transitions. [2022-04-05 10:03:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 10:03:10,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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 84 [2022-04-05 10:03:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:10,681 INFO L225 Difference]: With dead ends: 497 [2022-04-05 10:03:10,681 INFO L226 Difference]: Without dead ends: 266 [2022-04-05 10:03:10,681 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 10:03:10,682 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 3 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:10,682 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 705 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 10:03:10,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-04-05 10:03:10,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-04-05 10:03:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5632183908045978) internal successors, (408), 261 states have internal predecessors, (408), 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) [2022-04-05 10:03:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 412 transitions. [2022-04-05 10:03:10,688 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 412 transitions. Word has length 84 [2022-04-05 10:03:10,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:10,688 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 412 transitions. [2022-04-05 10:03:10,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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) [2022-04-05 10:03:10,689 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 412 transitions. [2022-04-05 10:03:10,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 10:03:10,689 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:10,689 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:10,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 10:03:10,690 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:10,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:10,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1704854435, now seen corresponding path program 1 times [2022-04-05 10:03:10,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:10,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712054683] [2022-04-05 10:03:10,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:03:10,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:10,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712054683] [2022-04-05 10:03:10,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712054683] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:10,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:10,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:10,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899133171] [2022-04-05 10:03:10,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:10,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:10,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:10,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:10,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:10,796 INFO L87 Difference]: Start difference. First operand 266 states and 412 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) [2022-04-05 10:03:12,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:13,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:15,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:17,729 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 [] [2022-04-05 10:03:18,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:18,083 INFO L93 Difference]: Finished difference Result 533 states and 829 transitions. [2022-04-05 10:03:18,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:18,083 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 [2022-04-05 10:03:18,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:18,085 INFO L225 Difference]: With dead ends: 533 [2022-04-05 10:03:18,085 INFO L226 Difference]: Without dead ends: 293 [2022-04-05 10:03:18,085 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:18,086 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 39 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:18,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 563 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-04-05 10:03:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-04-05 10:03:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 266. [2022-04-05 10:03:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5593869731800767) internal successors, (407), 261 states have internal predecessors, (407), 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) [2022-04-05 10:03:18,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 411 transitions. [2022-04-05 10:03:18,092 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 411 transitions. Word has length 84 [2022-04-05 10:03:18,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:18,092 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 411 transitions. [2022-04-05 10:03:18,093 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) [2022-04-05 10:03:18,093 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 411 transitions. [2022-04-05 10:03:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-05 10:03:18,094 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:18,094 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:18,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 10:03:18,094 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:18,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:18,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1916846855, now seen corresponding path program 1 times [2022-04-05 10:03:18,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:18,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215108912] [2022-04-05 10:03:18,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:18,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:03:18,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:18,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215108912] [2022-04-05 10:03:18,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215108912] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:18,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:18,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:18,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241471289] [2022-04-05 10:03:18,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:18,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:18,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:18,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:18,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:18,221 INFO L87 Difference]: Start difference. First operand 266 states and 411 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:20,231 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 [] [2022-04-05 10:03:20,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:20,722 INFO L93 Difference]: Finished difference Result 624 states and 974 transitions. [2022-04-05 10:03:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:20,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-04-05 10:03:20,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:20,724 INFO L225 Difference]: With dead ends: 624 [2022-04-05 10:03:20,724 INFO L226 Difference]: Without dead ends: 384 [2022-04-05 10:03:20,725 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:20,725 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 162 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:20,725 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 398 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 10:03:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-04-05 10:03:20,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 266. [2022-04-05 10:03:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5440613026819923) internal successors, (403), 261 states have internal predecessors, (403), 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) [2022-04-05 10:03:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 407 transitions. [2022-04-05 10:03:20,732 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 407 transitions. Word has length 86 [2022-04-05 10:03:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:20,733 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 407 transitions. [2022-04-05 10:03:20,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 407 transitions. [2022-04-05 10:03:20,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-05 10:03:20,734 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:20,734 INFO L499 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] [2022-04-05 10:03:20,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 10:03:20,734 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:20,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:20,734 INFO L85 PathProgramCache]: Analyzing trace with hash 397807451, now seen corresponding path program 1 times [2022-04-05 10:03:20,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:20,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878640084] [2022-04-05 10:03:20,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:20,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:20,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:03:20,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878640084] [2022-04-05 10:03:20,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878640084] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:20,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:20,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:20,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885947536] [2022-04-05 10:03:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:20,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:20,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:20,889 INFO L87 Difference]: Start difference. First operand 266 states and 407 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) [2022-04-05 10:03:23,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:25,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:26,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:26,404 INFO L93 Difference]: Finished difference Result 624 states and 966 transitions. [2022-04-05 10:03:26,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:26,404 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 [2022-04-05 10:03:26,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:26,406 INFO L225 Difference]: With dead ends: 624 [2022-04-05 10:03:26,406 INFO L226 Difference]: Without dead ends: 384 [2022-04-05 10:03:26,407 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:26,407 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 160 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:26,407 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:03:26,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-04-05 10:03:26,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 266. [2022-04-05 10:03:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.528735632183908) internal successors, (399), 261 states have internal predecessors, (399), 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) [2022-04-05 10:03:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 403 transitions. [2022-04-05 10:03:26,414 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 403 transitions. Word has length 87 [2022-04-05 10:03:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:26,414 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 403 transitions. [2022-04-05 10:03:26,414 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) [2022-04-05 10:03:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 403 transitions. [2022-04-05 10:03:26,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-04-05 10:03:26,415 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:26,415 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:26,415 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 10:03:26,416 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:26,416 INFO L85 PathProgramCache]: Analyzing trace with hash -903497846, now seen corresponding path program 1 times [2022-04-05 10:03:26,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:26,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146091553] [2022-04-05 10:03:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:26,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:26,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:26,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:26,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146091553] [2022-04-05 10:03:26,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146091553] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:26,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:26,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:26,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887460885] [2022-04-05 10:03:26,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:26,541 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:26,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:26,542 INFO L87 Difference]: Start difference. First operand 266 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:27,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:29,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:31,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:33,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:34,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:34,120 INFO L93 Difference]: Finished difference Result 620 states and 948 transitions. [2022-04-05 10:03:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:34,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-04-05 10:03:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:34,122 INFO L225 Difference]: With dead ends: 620 [2022-04-05 10:03:34,122 INFO L226 Difference]: Without dead ends: 380 [2022-04-05 10:03:34,123 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:34,123 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:34,123 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 553 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 557 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-04-05 10:03:34,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-04-05 10:03:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 308. [2022-04-05 10:03:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 303 states have (on average 1.551155115511551) internal successors, (470), 303 states have internal predecessors, (470), 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) [2022-04-05 10:03:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 474 transitions. [2022-04-05 10:03:34,131 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 474 transitions. Word has length 91 [2022-04-05 10:03:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:34,131 INFO L478 AbstractCegarLoop]: Abstraction has 308 states and 474 transitions. [2022-04-05 10:03:34,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 474 transitions. [2022-04-05 10:03:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-04-05 10:03:34,132 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:34,132 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:34,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 10:03:34,132 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1352194485, now seen corresponding path program 1 times [2022-04-05 10:03:34,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:34,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681592315] [2022-04-05 10:03:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:34,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:34,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:34,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:34,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681592315] [2022-04-05 10:03:34,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681592315] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:34,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:34,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:34,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661691795] [2022-04-05 10:03:34,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:34,268 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:34,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:34,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:34,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:34,269 INFO L87 Difference]: Start difference. First operand 308 states and 474 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:35,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:37,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:38,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:40,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:40,429 INFO L93 Difference]: Finished difference Result 649 states and 1002 transitions. [2022-04-05 10:03:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:40,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-04-05 10:03:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:40,431 INFO L225 Difference]: With dead ends: 649 [2022-04-05 10:03:40,431 INFO L226 Difference]: Without dead ends: 367 [2022-04-05 10:03:40,432 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:40,432 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 38 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:40,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 661 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 10:03:40,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-04-05 10:03:40,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 332. [2022-04-05 10:03:40,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.5535168195718654) internal successors, (508), 327 states have internal predecessors, (508), 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) [2022-04-05 10:03:40,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 512 transitions. [2022-04-05 10:03:40,440 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 512 transitions. Word has length 91 [2022-04-05 10:03:40,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:40,440 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 512 transitions. [2022-04-05 10:03:40,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 512 transitions. [2022-04-05 10:03:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-04-05 10:03:40,441 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:40,441 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:40,441 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 10:03:40,441 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash -264243128, now seen corresponding path program 1 times [2022-04-05 10:03:40,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:40,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579522813] [2022-04-05 10:03:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:40,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:40,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:40,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579522813] [2022-04-05 10:03:40,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579522813] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:40,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:40,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:40,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530828057] [2022-04-05 10:03:40,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:40,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:40,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:40,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:40,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:40,551 INFO L87 Difference]: Start difference. First operand 332 states and 512 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:41,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:43,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:45,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:47,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:48,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:48,110 INFO L93 Difference]: Finished difference Result 645 states and 1004 transitions. [2022-04-05 10:03:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:48,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 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 96 [2022-04-05 10:03:48,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:48,112 INFO L225 Difference]: With dead ends: 645 [2022-04-05 10:03:48,112 INFO L226 Difference]: Without dead ends: 339 [2022-04-05 10:03:48,112 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:48,113 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 30 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:48,113 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 390 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 10:03:48,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-04-05 10:03:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 332. [2022-04-05 10:03:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.5504587155963303) internal successors, (507), 327 states have internal predecessors, (507), 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) [2022-04-05 10:03:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 511 transitions. [2022-04-05 10:03:48,120 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 511 transitions. Word has length 96 [2022-04-05 10:03:48,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:48,120 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 511 transitions. [2022-04-05 10:03:48,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 511 transitions. [2022-04-05 10:03:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-04-05 10:03:48,121 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:48,121 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:48,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 10:03:48,122 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:48,122 INFO L85 PathProgramCache]: Analyzing trace with hash -572421343, now seen corresponding path program 1 times [2022-04-05 10:03:48,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:48,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997313303] [2022-04-05 10:03:48,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:48,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:48,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:48,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997313303] [2022-04-05 10:03:48,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997313303] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:48,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:48,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:48,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197705012] [2022-04-05 10:03:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:48,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:48,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:48,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:48,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:48,233 INFO L87 Difference]: Start difference. First operand 332 states and 511 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:50,244 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 [] [2022-04-05 10:03:50,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:50,673 INFO L93 Difference]: Finished difference Result 754 states and 1172 transitions. [2022-04-05 10:03:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:50,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-04-05 10:03:50,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:50,675 INFO L225 Difference]: With dead ends: 754 [2022-04-05 10:03:50,676 INFO L226 Difference]: Without dead ends: 448 [2022-04-05 10:03:50,676 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:50,677 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 158 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:50,677 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 402 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:03:50,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-04-05 10:03:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 332. [2022-04-05 10:03:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.5382262996941896) internal successors, (503), 327 states have internal predecessors, (503), 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) [2022-04-05 10:03:50,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 507 transitions. [2022-04-05 10:03:50,684 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 507 transitions. Word has length 104 [2022-04-05 10:03:50,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:50,684 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 507 transitions. [2022-04-05 10:03:50,685 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 507 transitions. [2022-04-05 10:03:50,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-04-05 10:03:50,686 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:50,686 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:50,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 10:03:50,686 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:50,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:50,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1482671716, now seen corresponding path program 1 times [2022-04-05 10:03:50,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:50,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877040546] [2022-04-05 10:03:50,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:50,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:50,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:50,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877040546] [2022-04-05 10:03:50,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877040546] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:50,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:50,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:50,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274295734] [2022-04-05 10:03:50,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:50,819 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:50,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:50,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:50,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:50,820 INFO L87 Difference]: Start difference. First operand 332 states and 507 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:53,361 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 [] [2022-04-05 10:03:55,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:57,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:57,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:57,870 INFO L93 Difference]: Finished difference Result 755 states and 1165 transitions. [2022-04-05 10:03:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:57,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-04-05 10:03:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:57,871 INFO L225 Difference]: With dead ends: 755 [2022-04-05 10:03:57,871 INFO L226 Difference]: Without dead ends: 449 [2022-04-05 10:03:57,872 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:57,872 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:57,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 400 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 491 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 10:03:57,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-04-05 10:03:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 333. [2022-04-05 10:03:57,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5274390243902438) internal successors, (501), 328 states have internal predecessors, (501), 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) [2022-04-05 10:03:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 505 transitions. [2022-04-05 10:03:57,880 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 505 transitions. Word has length 105 [2022-04-05 10:03:57,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:57,881 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 505 transitions. [2022-04-05 10:03:57,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 505 transitions. [2022-04-05 10:03:57,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-04-05 10:03:57,882 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:57,882 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:57,882 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 10:03:57,882 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:57,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2129212260, now seen corresponding path program 1 times [2022-04-05 10:03:57,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:57,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409516533] [2022-04-05 10:03:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:57,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:57,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:57,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409516533] [2022-04-05 10:03:57,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409516533] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:57,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:57,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:57,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717468139] [2022-04-05 10:03:57,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:57,990 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:57,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:57,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:57,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:57,990 INFO L87 Difference]: Start difference. First operand 333 states and 505 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:59,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:01,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:03,026 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 [] [2022-04-05 10:04:03,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:03,472 INFO L93 Difference]: Finished difference Result 699 states and 1064 transitions. [2022-04-05 10:04:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:03,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-04-05 10:04:03,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:03,474 INFO L225 Difference]: With dead ends: 699 [2022-04-05 10:04:03,474 INFO L226 Difference]: Without dead ends: 392 [2022-04-05 10:04:03,474 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:03,474 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 116 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:03,475 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 521 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:04:03,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-04-05 10:04:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 333. [2022-04-05 10:04:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.524390243902439) internal successors, (500), 328 states have internal predecessors, (500), 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) [2022-04-05 10:04:03,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 504 transitions. [2022-04-05 10:04:03,482 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 504 transitions. Word has length 106 [2022-04-05 10:04:03,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:03,482 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 504 transitions. [2022-04-05 10:04:03,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:03,483 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 504 transitions. [2022-04-05 10:04:03,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-04-05 10:04:03,484 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:03,484 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:03,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 10:04:03,484 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:03,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:03,484 INFO L85 PathProgramCache]: Analyzing trace with hash 235135931, now seen corresponding path program 1 times [2022-04-05 10:04:03,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:03,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997625403] [2022-04-05 10:04:03,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:03,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:03,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:04:03,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:03,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997625403] [2022-04-05 10:04:03,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997625403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:03,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:03,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:03,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776115546] [2022-04-05 10:04:03,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:03,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:03,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:03,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:03,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:03,603 INFO L87 Difference]: Start difference. First operand 333 states and 504 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:06,445 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 [] [2022-04-05 10:04:08,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:08,601 INFO L93 Difference]: Finished difference Result 662 states and 1007 transitions. [2022-04-05 10:04:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:08,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-04-05 10:04:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:08,603 INFO L225 Difference]: With dead ends: 662 [2022-04-05 10:04:08,603 INFO L226 Difference]: Without dead ends: 355 [2022-04-05 10:04:08,603 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:08,604 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 46 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:08,604 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 655 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 10:04:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-04-05 10:04:08,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 333. [2022-04-05 10:04:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.521341463414634) internal successors, (499), 328 states have internal predecessors, (499), 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) [2022-04-05 10:04:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 503 transitions. [2022-04-05 10:04:08,611 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 503 transitions. Word has length 106 [2022-04-05 10:04:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:08,611 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 503 transitions. [2022-04-05 10:04:08,611 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 503 transitions. [2022-04-05 10:04:08,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 10:04:08,612 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:08,613 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:08,613 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 10:04:08,613 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:08,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:08,613 INFO L85 PathProgramCache]: Analyzing trace with hash -397396756, now seen corresponding path program 1 times [2022-04-05 10:04:08,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:08,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71201784] [2022-04-05 10:04:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:08,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:04:08,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:08,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71201784] [2022-04-05 10:04:08,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71201784] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:08,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:08,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:08,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758394202] [2022-04-05 10:04:08,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:08,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:08,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:08,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:08,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:08,738 INFO L87 Difference]: Start difference. First operand 333 states and 503 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:12,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:14,048 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 [] [2022-04-05 10:04:14,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:14,486 INFO L93 Difference]: Finished difference Result 699 states and 1060 transitions. [2022-04-05 10:04:14,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:14,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 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 113 [2022-04-05 10:04:14,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:14,488 INFO L225 Difference]: With dead ends: 699 [2022-04-05 10:04:14,488 INFO L226 Difference]: Without dead ends: 392 [2022-04-05 10:04:14,488 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:14,489 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 103 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:14,489 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 537 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 10:04:14,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-04-05 10:04:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 333. [2022-04-05 10:04:14,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5182926829268293) internal successors, (498), 328 states have internal predecessors, (498), 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) [2022-04-05 10:04:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 502 transitions. [2022-04-05 10:04:14,496 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 502 transitions. Word has length 113 [2022-04-05 10:04:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:14,496 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 502 transitions. [2022-04-05 10:04:14,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 502 transitions. [2022-04-05 10:04:14,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 10:04:14,497 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:14,498 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:14,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 10:04:14,498 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:14,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:14,498 INFO L85 PathProgramCache]: Analyzing trace with hash 906996973, now seen corresponding path program 1 times [2022-04-05 10:04:14,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:14,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858436705] [2022-04-05 10:04:14,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:14,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 10:04:14,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:14,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858436705] [2022-04-05 10:04:14,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858436705] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:14,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:14,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:04:14,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223029902] [2022-04-05 10:04:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:14,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:04:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:14,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:04:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:14,632 INFO L87 Difference]: Start difference. First operand 333 states and 502 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:15,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:17,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:19,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:20,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:20,103 INFO L93 Difference]: Finished difference Result 944 states and 1444 transitions. [2022-04-05 10:04:20,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:04:20,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-05 10:04:20,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:20,106 INFO L225 Difference]: With dead ends: 944 [2022-04-05 10:04:20,106 INFO L226 Difference]: Without dead ends: 637 [2022-04-05 10:04:20,107 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:20,107 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:20,108 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 450 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 333 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:04:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-04-05 10:04:20,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2022-04-05 10:04:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 632 states have (on average 1.5015822784810127) internal successors, (949), 632 states have internal predecessors, (949), 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) [2022-04-05 10:04:20,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 953 transitions. [2022-04-05 10:04:20,120 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 953 transitions. Word has length 113 [2022-04-05 10:04:20,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:20,120 INFO L478 AbstractCegarLoop]: Abstraction has 637 states and 953 transitions. [2022-04-05 10:04:20,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:20,120 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 953 transitions. [2022-04-05 10:04:20,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 10:04:20,121 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:20,122 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:20,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 10:04:20,122 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:20,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash 298920110, now seen corresponding path program 1 times [2022-04-05 10:04:20,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:20,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51651431] [2022-04-05 10:04:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:20,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 10:04:20,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:20,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51651431] [2022-04-05 10:04:20,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51651431] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:20,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:20,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:04:20,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113889668] [2022-04-05 10:04:20,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:20,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:04:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:20,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:04:20,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:20,222 INFO L87 Difference]: Start difference. First operand 637 states and 953 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:21,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:23,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:25,676 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 [] [2022-04-05 10:04:25,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:25,948 INFO L93 Difference]: Finished difference Result 1275 states and 1913 transitions. [2022-04-05 10:04:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:04:25,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-05 10:04:25,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:25,950 INFO L225 Difference]: With dead ends: 1275 [2022-04-05 10:04:25,950 INFO L226 Difference]: Without dead ends: 664 [2022-04-05 10:04:25,951 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:25,951 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:25,952 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 284 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 10:04:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-04-05 10:04:25,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2022-04-05 10:04:25,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 659 states have (on average 1.4931714719271623) internal successors, (984), 659 states have internal predecessors, (984), 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) [2022-04-05 10:04:25,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 988 transitions. [2022-04-05 10:04:25,994 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 988 transitions. Word has length 113 [2022-04-05 10:04:25,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:25,994 INFO L478 AbstractCegarLoop]: Abstraction has 664 states and 988 transitions. [2022-04-05 10:04:25,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:25,994 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 988 transitions. [2022-04-05 10:04:25,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 10:04:25,995 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:25,996 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:25,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 10:04:25,996 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2141701649, now seen corresponding path program 1 times [2022-04-05 10:04:25,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:25,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150641026] [2022-04-05 10:04:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-04-05 10:04:26,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:26,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150641026] [2022-04-05 10:04:26,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150641026] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:26,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:26,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:04:26,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363048064] [2022-04-05 10:04:26,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:26,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:04:26,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:26,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:04:26,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:26,105 INFO L87 Difference]: Start difference. First operand 664 states and 988 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:27,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:29,897 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 [] [2022-04-05 10:04:30,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:30,160 INFO L93 Difference]: Finished difference Result 1304 states and 1949 transitions. [2022-04-05 10:04:30,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:04:30,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-05 10:04:30,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:30,162 INFO L225 Difference]: With dead ends: 1304 [2022-04-05 10:04:30,162 INFO L226 Difference]: Without dead ends: 666 [2022-04-05 10:04:30,163 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:30,164 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:30,164 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 10:04:30,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-04-05 10:04:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2022-04-05 10:04:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 661 states have (on average 1.491679273827534) internal successors, (986), 661 states have internal predecessors, (986), 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) [2022-04-05 10:04:30,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 990 transitions. [2022-04-05 10:04:30,176 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 990 transitions. Word has length 113 [2022-04-05 10:04:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:30,176 INFO L478 AbstractCegarLoop]: Abstraction has 666 states and 990 transitions. [2022-04-05 10:04:30,176 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 990 transitions. [2022-04-05 10:04:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-04-05 10:04:30,178 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:30,178 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:30,178 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 10:04:30,178 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:30,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:30,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2097889140, now seen corresponding path program 1 times [2022-04-05 10:04:30,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:30,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157888622] [2022-04-05 10:04:30,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:30,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:30,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 10:04:30,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:30,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157888622] [2022-04-05 10:04:30,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157888622] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:30,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:30,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:04:30,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757955977] [2022-04-05 10:04:30,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:30,300 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:04:30,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:04:30,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:30,301 INFO L87 Difference]: Start difference. First operand 666 states and 990 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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) [2022-04-05 10:04:31,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:33,510 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 [] [2022-04-05 10:04:34,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:34,594 INFO L93 Difference]: Finished difference Result 1608 states and 2418 transitions. [2022-04-05 10:04:34,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:04:34,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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 115 [2022-04-05 10:04:34,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:34,598 INFO L225 Difference]: With dead ends: 1608 [2022-04-05 10:04:34,598 INFO L226 Difference]: Without dead ends: 970 [2022-04-05 10:04:34,599 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:34,600 INFO L913 BasicCegarLoop]: 401 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:34,600 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 595 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 10:04:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-04-05 10:04:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2022-04-05 10:04:34,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 965 states have (on average 1.489119170984456) internal successors, (1437), 965 states have internal predecessors, (1437), 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) [2022-04-05 10:04:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1441 transitions. [2022-04-05 10:04:34,617 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1441 transitions. Word has length 115 [2022-04-05 10:04:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:34,618 INFO L478 AbstractCegarLoop]: Abstraction has 970 states and 1441 transitions. [2022-04-05 10:04:34,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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) [2022-04-05 10:04:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1441 transitions. [2022-04-05 10:04:34,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 10:04:34,620 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:34,620 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:34,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 10:04:34,620 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:34,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:34,620 INFO L85 PathProgramCache]: Analyzing trace with hash 270251946, now seen corresponding path program 1 times [2022-04-05 10:04:34,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:34,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30413566] [2022-04-05 10:04:34,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:34,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 10:04:34,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:34,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30413566] [2022-04-05 10:04:34,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30413566] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:34,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:34,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:34,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791376018] [2022-04-05 10:04:34,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:34,745 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:34,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:34,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:34,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:34,746 INFO L87 Difference]: Start difference. First operand 970 states and 1441 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:35,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:39,421 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 [] [2022-04-05 10:04:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:39,879 INFO L93 Difference]: Finished difference Result 2255 states and 3352 transitions. [2022-04-05 10:04:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:39,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-05 10:04:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:39,883 INFO L225 Difference]: With dead ends: 2255 [2022-04-05 10:04:39,883 INFO L226 Difference]: Without dead ends: 1313 [2022-04-05 10:04:39,885 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:39,885 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 133 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:39,885 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 426 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 10:04:39,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-04-05 10:04:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 988. [2022-04-05 10:04:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 983 states have (on average 1.5015259409969481) internal successors, (1476), 983 states have internal predecessors, (1476), 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) [2022-04-05 10:04:39,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1480 transitions. [2022-04-05 10:04:39,906 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1480 transitions. Word has length 144 [2022-04-05 10:04:39,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:39,907 INFO L478 AbstractCegarLoop]: Abstraction has 988 states and 1480 transitions. [2022-04-05 10:04:39,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:39,907 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1480 transitions. [2022-04-05 10:04:39,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-05 10:04:39,909 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:39,909 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:39,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 10:04:39,909 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:39,909 INFO L85 PathProgramCache]: Analyzing trace with hash -282931265, now seen corresponding path program 1 times [2022-04-05 10:04:39,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:39,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082217484] [2022-04-05 10:04:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:39,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:40,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-04-05 10:04:40,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:40,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082217484] [2022-04-05 10:04:40,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082217484] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:40,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:40,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:40,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193379862] [2022-04-05 10:04:40,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:40,050 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:40,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:40,051 INFO L87 Difference]: Start difference. First operand 988 states and 1480 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:41,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:43,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:45,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:46,211 INFO L93 Difference]: Finished difference Result 2158 states and 3231 transitions. [2022-04-05 10:04:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 172 [2022-04-05 10:04:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:46,215 INFO L225 Difference]: With dead ends: 2158 [2022-04-05 10:04:46,215 INFO L226 Difference]: Without dead ends: 1198 [2022-04-05 10:04:46,216 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:46,217 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 50 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:46,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 673 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 538 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 10:04:46,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-04-05 10:04:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1072. [2022-04-05 10:04:46,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.507029053420806) internal successors, (1608), 1067 states have internal predecessors, (1608), 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) [2022-04-05 10:04:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1612 transitions. [2022-04-05 10:04:46,238 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1612 transitions. Word has length 172 [2022-04-05 10:04:46,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:46,238 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1612 transitions. [2022-04-05 10:04:46,238 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1612 transitions. [2022-04-05 10:04:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-04-05 10:04:46,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:46,241 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:46,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 10:04:46,241 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:46,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash -288026223, now seen corresponding path program 1 times [2022-04-05 10:04:46,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:46,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560092416] [2022-04-05 10:04:46,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:46,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:46,371 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-05 10:04:46,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:46,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560092416] [2022-04-05 10:04:46,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560092416] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:46,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:46,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:46,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766783380] [2022-04-05 10:04:46,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:46,372 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:46,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:46,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:46,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:46,372 INFO L87 Difference]: Start difference. First operand 1072 states and 1612 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:47,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:50,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:52,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:54,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:54,525 INFO L93 Difference]: Finished difference Result 2212 states and 3321 transitions. [2022-04-05 10:04:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:54,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2022-04-05 10:04:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:54,529 INFO L225 Difference]: With dead ends: 2212 [2022-04-05 10:04:54,529 INFO L226 Difference]: Without dead ends: 1168 [2022-04-05 10:04:54,530 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:54,531 INFO L913 BasicCegarLoop]: 270 mSDtfsCounter, 64 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:54,531 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 671 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-04-05 10:04:54,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-04-05 10:04:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1072. [2022-04-05 10:04:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.5042174320524837) internal successors, (1605), 1067 states have internal predecessors, (1605), 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) [2022-04-05 10:04:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1609 transitions. [2022-04-05 10:04:54,552 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1609 transitions. Word has length 187 [2022-04-05 10:04:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:54,552 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1609 transitions. [2022-04-05 10:04:54,552 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1609 transitions. [2022-04-05 10:04:54,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-04-05 10:04:54,554 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:54,554 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:04:54,554 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 10:04:54,555 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:54,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:54,555 INFO L85 PathProgramCache]: Analyzing trace with hash 926805537, now seen corresponding path program 1 times [2022-04-05 10:04:54,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:54,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543577237] [2022-04-05 10:04:54,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:54,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-05 10:04:54,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:54,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543577237] [2022-04-05 10:04:54,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543577237] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:54,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:54,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283714611] [2022-04-05 10:04:54,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:54,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:54,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:54,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:54,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:54,683 INFO L87 Difference]: Start difference. First operand 1072 states and 1609 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:56,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:58,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:00,357 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 [] [2022-04-05 10:05:01,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:01,571 INFO L93 Difference]: Finished difference Result 2212 states and 3315 transitions. [2022-04-05 10:05:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:05:01,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 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 194 [2022-04-05 10:05:01,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:01,575 INFO L225 Difference]: With dead ends: 2212 [2022-04-05 10:05:01,575 INFO L226 Difference]: Without dead ends: 1168 [2022-04-05 10:05:01,577 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:05:01,577 INFO L913 BasicCegarLoop]: 269 mSDtfsCounter, 53 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:01,577 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 669 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 10:05:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-04-05 10:05:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1072. [2022-04-05 10:05:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.5014058106841612) internal successors, (1602), 1067 states have internal predecessors, (1602), 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) [2022-04-05 10:05:01,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1606 transitions. [2022-04-05 10:05:01,597 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1606 transitions. Word has length 194 [2022-04-05 10:05:01,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:01,598 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1606 transitions. [2022-04-05 10:05:01,598 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:01,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1606 transitions. [2022-04-05 10:05:01,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-04-05 10:05:01,600 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:01,600 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:01,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 10:05:01,601 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:01,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:01,601 INFO L85 PathProgramCache]: Analyzing trace with hash -396595679, now seen corresponding path program 1 times [2022-04-05 10:05:01,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:01,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331431182] [2022-04-05 10:05:01,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:01,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-05 10:05:01,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:01,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331431182] [2022-04-05 10:05:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331431182] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:01,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:01,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:05:01,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042597575] [2022-04-05 10:05:01,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:01,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:05:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:01,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:05:01,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:05:01,743 INFO L87 Difference]: Start difference. First operand 1072 states and 1606 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:03,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:06,984 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 [] [2022-04-05 10:05:07,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:07,422 INFO L93 Difference]: Finished difference Result 2212 states and 3309 transitions. [2022-04-05 10:05:07,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:05:07,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 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 194 [2022-04-05 10:05:07,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:07,425 INFO L225 Difference]: With dead ends: 2212 [2022-04-05 10:05:07,425 INFO L226 Difference]: Without dead ends: 1168 [2022-04-05 10:05:07,426 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:05:07,426 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 50 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:07,426 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 667 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 10:05:07,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-04-05 10:05:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1072. [2022-04-05 10:05:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.4985941893158388) internal successors, (1599), 1067 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) [2022-04-05 10:05:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1603 transitions. [2022-04-05 10:05:07,447 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1603 transitions. Word has length 194 [2022-04-05 10:05:07,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:07,447 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1603 transitions. [2022-04-05 10:05:07,447 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1603 transitions. [2022-04-05 10:05:07,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-04-05 10:05:07,450 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:07,450 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:07,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 10:05:07,450 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:07,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:07,450 INFO L85 PathProgramCache]: Analyzing trace with hash 575362303, now seen corresponding path program 1 times [2022-04-05 10:05:07,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:07,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529252496] [2022-04-05 10:05:07,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:07,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-05 10:05:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:07,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529252496] [2022-04-05 10:05:07,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529252496] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:07,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:07,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:05:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917885979] [2022-04-05 10:05:07,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:07,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:05:07,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:07,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:05:07,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:05:07,587 INFO L87 Difference]: Start difference. First operand 1072 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:10,324 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 [] [2022-04-05 10:05:12,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:12,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:12,741 INFO L93 Difference]: Finished difference Result 2393 states and 3544 transitions. [2022-04-05 10:05:12,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:05:12,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-04-05 10:05:12,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:12,746 INFO L225 Difference]: With dead ends: 2393 [2022-04-05 10:05:12,746 INFO L226 Difference]: Without dead ends: 1349 [2022-04-05 10:05:12,747 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:05:12,748 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 149 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:12,748 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 426 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 10:05:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-04-05 10:05:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1072. [2022-04-05 10:05:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.4845360824742269) internal successors, (1584), 1067 states have internal predecessors, (1584), 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) [2022-04-05 10:05:12,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1588 transitions. [2022-04-05 10:05:12,769 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1588 transitions. Word has length 195 [2022-04-05 10:05:12,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:12,770 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1588 transitions. [2022-04-05 10:05:12,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1588 transitions. [2022-04-05 10:05:12,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-04-05 10:05:12,772 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:12,772 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2022-04-05 10:05:12,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 10:05:12,772 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:12,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:12,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1430990526, now seen corresponding path program 1 times [2022-04-05 10:05:12,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:12,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161634400] [2022-04-05 10:05:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:12,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:12,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:12,911 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-05 10:05:12,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:12,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161634400] [2022-04-05 10:05:12,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161634400] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:12,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:12,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:05:12,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206051979] [2022-04-05 10:05:12,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:12,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:05:12,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:12,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:05:12,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:05:12,914 INFO L87 Difference]: Start difference. First operand 1072 states and 1588 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:14,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:16,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:18,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:19,129 INFO L93 Difference]: Finished difference Result 2186 states and 3239 transitions. [2022-04-05 10:05:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:05:19,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-04-05 10:05:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:19,133 INFO L225 Difference]: With dead ends: 2186 [2022-04-05 10:05:19,133 INFO L226 Difference]: Without dead ends: 1142 [2022-04-05 10:05:19,134 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:05:19,134 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:19,134 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 647 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 10:05:19,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-04-05 10:05:19,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1072. [2022-04-05 10:05:19,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1067 states have (on average 1.4817244611059044) internal successors, (1581), 1067 states have internal predecessors, (1581), 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) [2022-04-05 10:05:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1585 transitions. [2022-04-05 10:05:19,154 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1585 transitions. Word has length 195 [2022-04-05 10:05:19,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:19,154 INFO L478 AbstractCegarLoop]: Abstraction has 1072 states and 1585 transitions. [2022-04-05 10:05:19,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:19,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1585 transitions. [2022-04-05 10:05:19,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-04-05 10:05:19,157 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:19,157 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:19,157 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 10:05:19,157 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:19,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:19,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1397878705, now seen corresponding path program 1 times [2022-04-05 10:05:19,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:19,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985537946] [2022-04-05 10:05:19,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:19,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-04-05 10:05:19,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:19,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985537946] [2022-04-05 10:05:19,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985537946] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:19,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:19,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:19,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298468723] [2022-04-05 10:05:19,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:19,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:19,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:19,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:19,293 INFO L87 Difference]: Start difference. First operand 1072 states and 1585 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:22,286 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 [] [2022-04-05 10:05:23,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:23,716 INFO L93 Difference]: Finished difference Result 2454 states and 3656 transitions. [2022-04-05 10:05:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 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 [2022-04-05 10:05:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:23,720 INFO L225 Difference]: With dead ends: 2454 [2022-04-05 10:05:23,720 INFO L226 Difference]: Without dead ends: 1410 [2022-04-05 10:05:23,721 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:23,721 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:23,722 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 10:05:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-04-05 10:05:23,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2022-04-05 10:05:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1405 states have (on average 1.480427046263345) internal successors, (2080), 1405 states have internal predecessors, (2080), 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) [2022-04-05 10:05:23,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2084 transitions. [2022-04-05 10:05:23,748 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2084 transitions. Word has length 197 [2022-04-05 10:05:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:23,748 INFO L478 AbstractCegarLoop]: Abstraction has 1410 states and 2084 transitions. [2022-04-05 10:05:23,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:23,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2084 transitions. [2022-04-05 10:05:23,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-04-05 10:05:23,751 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:23,751 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:23,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 10:05:23,752 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:23,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:23,752 INFO L85 PathProgramCache]: Analyzing trace with hash 711480470, now seen corresponding path program 1 times [2022-04-05 10:05:23,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:23,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425223169] [2022-04-05 10:05:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:23,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:23,916 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-05 10:05:23,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:23,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425223169] [2022-04-05 10:05:23,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425223169] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:23,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:23,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:23,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983906683] [2022-04-05 10:05:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:23,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:23,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:23,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:23,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:23,917 INFO L87 Difference]: Start difference. First operand 1410 states and 2084 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:26,257 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 [] [2022-04-05 10:05:27,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:27,682 INFO L93 Difference]: Finished difference Result 3131 states and 4655 transitions. [2022-04-05 10:05:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-04-05 10:05:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:27,686 INFO L225 Difference]: With dead ends: 3131 [2022-04-05 10:05:27,686 INFO L226 Difference]: Without dead ends: 1749 [2022-04-05 10:05:27,688 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:27,689 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:27,689 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 10:05:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2022-04-05 10:05:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1749. [2022-04-05 10:05:27,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1744 states have (on average 1.4827981651376148) internal successors, (2586), 1744 states have internal predecessors, (2586), 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) [2022-04-05 10:05:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2590 transitions. [2022-04-05 10:05:27,724 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2590 transitions. Word has length 203 [2022-04-05 10:05:27,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:27,725 INFO L478 AbstractCegarLoop]: Abstraction has 1749 states and 2590 transitions. [2022-04-05 10:05:27,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2590 transitions. [2022-04-05 10:05:27,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-04-05 10:05:27,729 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:27,729 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:27,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 10:05:27,729 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:27,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:27,730 INFO L85 PathProgramCache]: Analyzing trace with hash 269903284, now seen corresponding path program 1 times [2022-04-05 10:05:27,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:27,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295791489] [2022-04-05 10:05:27,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:27,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:27,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-04-05 10:05:27,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:27,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295791489] [2022-04-05 10:05:27,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295791489] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:27,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:27,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:27,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158196674] [2022-04-05 10:05:27,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:27,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:27,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:27,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:27,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:27,910 INFO L87 Difference]: Start difference. First operand 1749 states and 2590 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:29,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:31,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:33,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:33,478 INFO L93 Difference]: Finished difference Result 3809 states and 5667 transitions. [2022-04-05 10:05:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 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 [2022-04-05 10:05:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:33,486 INFO L225 Difference]: With dead ends: 3809 [2022-04-05 10:05:33,486 INFO L226 Difference]: Without dead ends: 2088 [2022-04-05 10:05:33,489 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:33,489 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:33,489 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:05:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2022-04-05 10:05:33,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2022-04-05 10:05:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 2083 states have (on average 1.484877580412866) internal successors, (3093), 2083 states have internal predecessors, (3093), 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) [2022-04-05 10:05:33,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3097 transitions. [2022-04-05 10:05:33,530 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3097 transitions. Word has length 235 [2022-04-05 10:05:33,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:33,531 INFO L478 AbstractCegarLoop]: Abstraction has 2088 states and 3097 transitions. [2022-04-05 10:05:33,531 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3097 transitions. [2022-04-05 10:05:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-04-05 10:05:33,535 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:33,535 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:33,535 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 10:05:33,536 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:33,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1760536661, now seen corresponding path program 1 times [2022-04-05 10:05:33,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:33,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843625016] [2022-04-05 10:05:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:33,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:33,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-04-05 10:05:33,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:33,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843625016] [2022-04-05 10:05:33,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843625016] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:33,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:33,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:33,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121451417] [2022-04-05 10:05:33,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:33,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:33,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:33,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:33,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:33,727 INFO L87 Difference]: Start difference. First operand 2088 states and 3097 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:35,735 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 [] [2022-04-05 10:05:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:36,098 INFO L93 Difference]: Finished difference Result 4487 states and 6681 transitions. [2022-04-05 10:05:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:36,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 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 237 [2022-04-05 10:05:36,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:36,104 INFO L225 Difference]: With dead ends: 4487 [2022-04-05 10:05:36,104 INFO L226 Difference]: Without dead ends: 2427 [2022-04-05 10:05:36,106 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:36,107 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:36,107 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 388 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 288 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 10:05:36,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2022-04-05 10:05:36,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2427. [2022-04-05 10:05:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2422 states have (on average 1.4867877786952932) internal successors, (3601), 2422 states have internal predecessors, (3601), 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) [2022-04-05 10:05:36,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3605 transitions. [2022-04-05 10:05:36,153 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3605 transitions. Word has length 237 [2022-04-05 10:05:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:36,153 INFO L478 AbstractCegarLoop]: Abstraction has 2427 states and 3605 transitions. [2022-04-05 10:05:36,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:36,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3605 transitions. [2022-04-05 10:05:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-04-05 10:05:36,158 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:36,158 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:36,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 10:05:36,159 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:36,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:36,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1865311039, now seen corresponding path program 1 times [2022-04-05 10:05:36,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:36,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696546291] [2022-04-05 10:05:36,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:36,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-05 10:05:36,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:36,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696546291] [2022-04-05 10:05:36,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696546291] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:36,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:36,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:05:36,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833980620] [2022-04-05 10:05:36,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:36,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:05:36,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:36,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:05:36,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:05:36,360 INFO L87 Difference]: Start difference. First operand 2427 states and 3605 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) [2022-04-05 10:05:38,370 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 [] [2022-04-05 10:05:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:38,871 INFO L93 Difference]: Finished difference Result 6002 states and 8936 transitions. [2022-04-05 10:05:38,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:05:38,872 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 270 [2022-04-05 10:05:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:38,879 INFO L225 Difference]: With dead ends: 6002 [2022-04-05 10:05:38,879 INFO L226 Difference]: Without dead ends: 3603 [2022-04-05 10:05:38,882 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:05:38,883 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 138 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:38,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 414 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:05:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2022-04-05 10:05:38,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 2875. [2022-04-05 10:05:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2870 states have (on average 1.5034843205574913) internal successors, (4315), 2870 states have internal predecessors, (4315), 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) [2022-04-05 10:05:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4319 transitions. [2022-04-05 10:05:38,953 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4319 transitions. Word has length 270 [2022-04-05 10:05:38,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:38,953 INFO L478 AbstractCegarLoop]: Abstraction has 2875 states and 4319 transitions. [2022-04-05 10:05:38,953 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) [2022-04-05 10:05:38,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4319 transitions. [2022-04-05 10:05:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-04-05 10:05:38,958 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:38,959 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:38,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 10:05:38,959 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:38,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:38,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1277534805, now seen corresponding path program 1 times [2022-04-05 10:05:38,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:38,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34523343] [2022-04-05 10:05:38,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:38,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-04-05 10:05:39,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:39,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34523343] [2022-04-05 10:05:39,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34523343] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:39,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:39,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:39,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824470378] [2022-04-05 10:05:39,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:39,171 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:39,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:39,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:39,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:39,172 INFO L87 Difference]: Start difference. First operand 2875 states and 4319 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:42,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:44,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:44,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:44,614 INFO L93 Difference]: Finished difference Result 6118 states and 9216 transitions. [2022-04-05 10:05:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:44,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 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 276 [2022-04-05 10:05:44,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:44,620 INFO L225 Difference]: With dead ends: 6118 [2022-04-05 10:05:44,620 INFO L226 Difference]: Without dead ends: 3271 [2022-04-05 10:05:44,623 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:44,623 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:44,624 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 10:05:44,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2022-04-05 10:05:44,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3271. [2022-04-05 10:05:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 3266 states have (on average 1.5030618493570116) internal successors, (4909), 3266 states have internal predecessors, (4909), 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) [2022-04-05 10:05:44,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4913 transitions. [2022-04-05 10:05:44,673 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4913 transitions. Word has length 276 [2022-04-05 10:05:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:44,673 INFO L478 AbstractCegarLoop]: Abstraction has 3271 states and 4913 transitions. [2022-04-05 10:05:44,674 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4913 transitions. [2022-04-05 10:05:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-04-05 10:05:44,680 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:44,680 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:44,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 10:05:44,680 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:44,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:44,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1401608052, now seen corresponding path program 1 times [2022-04-05 10:05:44,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:44,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540062570] [2022-04-05 10:05:44,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:44,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-05 10:05:44,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:44,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540062570] [2022-04-05 10:05:44,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540062570] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:44,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:44,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:44,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611062229] [2022-04-05 10:05:44,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:44,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:44,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:44,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:44,851 INFO L87 Difference]: Start difference. First operand 3271 states and 4913 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:46,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:47,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:47,393 INFO L93 Difference]: Finished difference Result 6884 states and 10363 transitions. [2022-04-05 10:05:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 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 276 [2022-04-05 10:05:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:47,400 INFO L225 Difference]: With dead ends: 6884 [2022-04-05 10:05:47,400 INFO L226 Difference]: Without dead ends: 3641 [2022-04-05 10:05:47,405 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:47,405 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:47,405 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 10:05:47,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2022-04-05 10:05:47,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3641. [2022-04-05 10:05:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3641 states, 3636 states have (on average 1.5013751375137514) internal successors, (5459), 3636 states have internal predecessors, (5459), 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) [2022-04-05 10:05:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 5463 transitions. [2022-04-05 10:05:47,472 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 5463 transitions. Word has length 276 [2022-04-05 10:05:47,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:47,472 INFO L478 AbstractCegarLoop]: Abstraction has 3641 states and 5463 transitions. [2022-04-05 10:05:47,472 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 5463 transitions. [2022-04-05 10:05:47,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-04-05 10:05:47,479 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:47,479 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:47,479 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 10:05:47,479 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:47,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:47,480 INFO L85 PathProgramCache]: Analyzing trace with hash 958317031, now seen corresponding path program 1 times [2022-04-05 10:05:47,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:47,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481917283] [2022-04-05 10:05:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:47,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:47,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2022-04-05 10:05:47,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:47,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481917283] [2022-04-05 10:05:47,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481917283] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:47,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:47,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:47,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914400152] [2022-04-05 10:05:47,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:47,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:47,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:47,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:47,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:47,707 INFO L87 Difference]: Start difference. First operand 3641 states and 5463 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:49,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:51,791 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 [] [2022-04-05 10:05:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:52,121 INFO L93 Difference]: Finished difference Result 7657 states and 11515 transitions. [2022-04-05 10:05:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:52,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2022-04-05 10:05:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:52,128 INFO L225 Difference]: With dead ends: 7657 [2022-04-05 10:05:52,129 INFO L226 Difference]: Without dead ends: 4044 [2022-04-05 10:05:52,134 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:52,134 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:52,135 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 10:05:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2022-04-05 10:05:52,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 4044. [2022-04-05 10:05:52,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 4039 states have (on average 1.503342411487992) internal successors, (6072), 4039 states have internal predecessors, (6072), 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) [2022-04-05 10:05:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 6076 transitions. [2022-04-05 10:05:52,224 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 6076 transitions. Word has length 350 [2022-04-05 10:05:52,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:52,225 INFO L478 AbstractCegarLoop]: Abstraction has 4044 states and 6076 transitions. [2022-04-05 10:05:52,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 6076 transitions. [2022-04-05 10:05:52,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-04-05 10:05:52,233 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:52,233 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:52,234 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 10:05:52,234 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:52,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1649358797, now seen corresponding path program 1 times [2022-04-05 10:05:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:52,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427876925] [2022-04-05 10:05:52,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:52,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:52,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2022-04-05 10:05:52,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:52,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427876925] [2022-04-05 10:05:52,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427876925] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:52,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:52,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:52,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378228945] [2022-04-05 10:05:52,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:52,638 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:52,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:52,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:52,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:52,638 INFO L87 Difference]: Start difference. First operand 4044 states and 6076 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2022-04-05 10:05:54,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:56,438 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 [] [2022-04-05 10:05:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:57,578 INFO L93 Difference]: Finished difference Result 8463 states and 12741 transitions. [2022-04-05 10:05:57,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:57,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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 391 [2022-04-05 10:05:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:57,585 INFO L225 Difference]: With dead ends: 8463 [2022-04-05 10:05:57,585 INFO L226 Difference]: Without dead ends: 4447 [2022-04-05 10:05:57,590 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:57,590 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:57,590 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 10:05:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4447 states. [2022-04-05 10:05:57,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4447 to 4447. [2022-04-05 10:05:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4447 states, 4442 states have (on average 1.505177847816299) internal successors, (6686), 4442 states have internal predecessors, (6686), 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) [2022-04-05 10:05:57,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4447 states to 4447 states and 6690 transitions. [2022-04-05 10:05:57,672 INFO L78 Accepts]: Start accepts. Automaton has 4447 states and 6690 transitions. Word has length 391 [2022-04-05 10:05:57,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:57,673 INFO L478 AbstractCegarLoop]: Abstraction has 4447 states and 6690 transitions. [2022-04-05 10:05:57,673 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2022-04-05 10:05:57,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4447 states and 6690 transitions. [2022-04-05 10:05:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-04-05 10:05:57,681 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:57,681 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:05:57,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 10:05:57,681 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:57,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1935497870, now seen corresponding path program 1 times [2022-04-05 10:05:57,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:57,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648028938] [2022-04-05 10:05:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:57,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-04-05 10:05:57,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:57,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648028938] [2022-04-05 10:05:57,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648028938] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:57,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:57,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:57,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258529503] [2022-04-05 10:05:57,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:57,947 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:57,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:57,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:57,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:57,947 INFO L87 Difference]: Start difference. First operand 4447 states and 6690 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2022-04-05 10:05:59,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:00,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:02,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:02,933 INFO L93 Difference]: Finished difference Result 9263 states and 13960 transitions. [2022-04-05 10:06:02,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:06:02,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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 399 [2022-04-05 10:06:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:02,940 INFO L225 Difference]: With dead ends: 9263 [2022-04-05 10:06:02,940 INFO L226 Difference]: Without dead ends: 4844 [2022-04-05 10:06:02,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:02,947 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:02,947 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 10:06:02,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2022-04-05 10:06:03,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2022-04-05 10:06:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 4839 states have (on average 1.504649721016739) internal successors, (7281), 4839 states have internal predecessors, (7281), 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) [2022-04-05 10:06:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 7285 transitions. [2022-04-05 10:06:03,062 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 7285 transitions. Word has length 399 [2022-04-05 10:06:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:03,063 INFO L478 AbstractCegarLoop]: Abstraction has 4844 states and 7285 transitions. [2022-04-05 10:06:03,063 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2022-04-05 10:06:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 7285 transitions. [2022-04-05 10:06:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-04-05 10:06:03,072 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:03,072 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:03,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 10:06:03,072 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:03,082 INFO L85 PathProgramCache]: Analyzing trace with hash 677976328, now seen corresponding path program 1 times [2022-04-05 10:06:03,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:03,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50872866] [2022-04-05 10:06:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:03,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2114 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2022-04-05 10:06:03,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:03,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50872866] [2022-04-05 10:06:03,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50872866] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:03,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:03,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:06:03,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941552514] [2022-04-05 10:06:03,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:03,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:06:03,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:03,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:06:03,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:03,377 INFO L87 Difference]: Start difference. First operand 4844 states and 7285 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:05,391 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 [] [2022-04-05 10:06:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:05,736 INFO L93 Difference]: Finished difference Result 10063 states and 15159 transitions. [2022-04-05 10:06:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:06:05,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 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 474 [2022-04-05 10:06:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:05,743 INFO L225 Difference]: With dead ends: 10063 [2022-04-05 10:06:05,743 INFO L226 Difference]: Without dead ends: 5247 [2022-04-05 10:06:05,750 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:05,750 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:05,750 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 288 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 10:06:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2022-04-05 10:06:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5247. [2022-04-05 10:06:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5242 states have (on average 1.5064860740175505) internal successors, (7897), 5242 states have internal predecessors, (7897), 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) [2022-04-05 10:06:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 7901 transitions. [2022-04-05 10:06:05,849 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 7901 transitions. Word has length 474 [2022-04-05 10:06:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:05,850 INFO L478 AbstractCegarLoop]: Abstraction has 5247 states and 7901 transitions. [2022-04-05 10:06:05,850 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:05,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 7901 transitions. [2022-04-05 10:06:05,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-04-05 10:06:05,859 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:05,860 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:05,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 10:06:05,860 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:05,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:05,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1647815905, now seen corresponding path program 1 times [2022-04-05 10:06:05,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:05,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066220579] [2022-04-05 10:06:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:05,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2506 backedges. 741 proven. 9 refuted. 0 times theorem prover too weak. 1756 trivial. 0 not checked. [2022-04-05 10:06:06,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:06,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066220579] [2022-04-05 10:06:06,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066220579] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:06:06,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170931654] [2022-04-05 10:06:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:06,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:06:06,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:06:06,183 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) [2022-04-05 10:06:06,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 10:06:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:07,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-05 10:06:07,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:06:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2506 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 1804 trivial. 0 not checked. [2022-04-05 10:06:07,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 10:06:07,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170931654] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:07,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 10:06:07,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-04-05 10:06:07,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143597148] [2022-04-05 10:06:07,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:07,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 10:06:07,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:07,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 10:06:07,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-05 10:06:07,995 INFO L87 Difference]: Start difference. First operand 5247 states and 7901 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2022-04-05 10:06:08,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:08,132 INFO L93 Difference]: Finished difference Result 10869 states and 16391 transitions. [2022-04-05 10:06:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 10:06:08,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 516 [2022-04-05 10:06:08,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:08,142 INFO L225 Difference]: With dead ends: 10869 [2022-04-05 10:06:08,143 INFO L226 Difference]: Without dead ends: 5650 [2022-04-05 10:06:08,149 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-05 10:06:08,149 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:08,149 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-05 10:06:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5650 states. [2022-04-05 10:06:08,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5650 to 5650. [2022-04-05 10:06:08,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5645 states have (on average 1.508237378210806) internal successors, (8514), 5645 states have internal predecessors, (8514), 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) [2022-04-05 10:06:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 8518 transitions. [2022-04-05 10:06:08,285 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 8518 transitions. Word has length 516 [2022-04-05 10:06:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:08,285 INFO L478 AbstractCegarLoop]: Abstraction has 5650 states and 8518 transitions. [2022-04-05 10:06:08,286 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2022-04-05 10:06:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 8518 transitions. [2022-04-05 10:06:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-04-05 10:06:08,296 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:08,296 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:08,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-05 10:06:08,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-04-05 10:06:08,512 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:08,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:08,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1218320683, now seen corresponding path program 1 times [2022-04-05 10:06:08,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:08,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8414455] [2022-04-05 10:06:08,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:08,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:08,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-04-05 10:06:08,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:08,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8414455] [2022-04-05 10:06:08,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8414455] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:08,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:08,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:06:08,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095813928] [2022-04-05 10:06:08,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:08,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:06:08,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:08,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:06:08,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:06:08,841 INFO L87 Difference]: Start difference. First operand 5650 states and 8518 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:10,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:12,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:14,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:16,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:17,203 INFO L93 Difference]: Finished difference Result 12755 states and 19132 transitions. [2022-04-05 10:06:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:06:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 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 525 [2022-04-05 10:06:17,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:17,211 INFO L225 Difference]: With dead ends: 12755 [2022-04-05 10:06:17,211 INFO L226 Difference]: Without dead ends: 7133 [2022-04-05 10:06:17,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:06:17,219 INFO L913 BasicCegarLoop]: 303 mSDtfsCounter, 85 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:17,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 737 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 644 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-04-05 10:06:17,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2022-04-05 10:06:17,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 6224. [2022-04-05 10:06:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6224 states, 6219 states have (on average 1.517607332368548) internal successors, (9438), 6219 states have internal predecessors, (9438), 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) [2022-04-05 10:06:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6224 states to 6224 states and 9442 transitions. [2022-04-05 10:06:17,383 INFO L78 Accepts]: Start accepts. Automaton has 6224 states and 9442 transitions. Word has length 525 [2022-04-05 10:06:17,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:17,383 INFO L478 AbstractCegarLoop]: Abstraction has 6224 states and 9442 transitions. [2022-04-05 10:06:17,384 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:17,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6224 states and 9442 transitions. [2022-04-05 10:06:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-04-05 10:06:17,394 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:17,394 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:17,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-05 10:06:17,394 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:17,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:17,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1646733805, now seen corresponding path program 1 times [2022-04-05 10:06:17,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:17,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70579652] [2022-04-05 10:06:17,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:17,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:17,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-04-05 10:06:17,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:17,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70579652] [2022-04-05 10:06:17,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70579652] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:17,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:17,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:06:17,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376200841] [2022-04-05 10:06:17,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:17,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:06:17,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:17,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:06:17,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:17,736 INFO L87 Difference]: Start difference. First operand 6224 states and 9442 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:19,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:21,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:22,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:23,131 INFO L93 Difference]: Finished difference Result 12859 states and 19532 transitions. [2022-04-05 10:06:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:06:23,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 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 525 [2022-04-05 10:06:23,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:23,140 INFO L225 Difference]: With dead ends: 12859 [2022-04-05 10:06:23,140 INFO L226 Difference]: Without dead ends: 6663 [2022-04-05 10:06:23,149 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:23,149 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:23,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 10:06:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-04-05 10:06:23,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6663. [2022-04-05 10:06:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 6658 states have (on average 1.5169720636827877) internal successors, (10100), 6658 states have internal predecessors, (10100), 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) [2022-04-05 10:06:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 10104 transitions. [2022-04-05 10:06:23,291 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 10104 transitions. Word has length 525 [2022-04-05 10:06:23,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:23,291 INFO L478 AbstractCegarLoop]: Abstraction has 6663 states and 10104 transitions. [2022-04-05 10:06:23,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 10104 transitions. [2022-04-05 10:06:23,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-04-05 10:06:23,300 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:23,300 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:23,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 10:06:23,300 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:23,301 INFO L85 PathProgramCache]: Analyzing trace with hash 617108524, now seen corresponding path program 1 times [2022-04-05 10:06:23,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:23,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383668828] [2022-04-05 10:06:23,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:23,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:23,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3402 backedges. 842 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2022-04-05 10:06:23,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:23,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383668828] [2022-04-05 10:06:23,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383668828] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:23,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:23,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:06:23,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740244083] [2022-04-05 10:06:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:23,584 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:06:23,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:06:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:23,584 INFO L87 Difference]: Start difference. First operand 6663 states and 10104 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:25,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:27,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:29,404 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 [] [2022-04-05 10:06:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:29,819 INFO L93 Difference]: Finished difference Result 13742 states and 20863 transitions. [2022-04-05 10:06:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:06:29,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 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 601 [2022-04-05 10:06:29,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:29,827 INFO L225 Difference]: With dead ends: 13742 [2022-04-05 10:06:29,827 INFO L226 Difference]: Without dead ends: 7107 [2022-04-05 10:06:29,836 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:29,837 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 34 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:29,837 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 10:06:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2022-04-05 10:06:29,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 7107. [2022-04-05 10:06:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.5185863137144466) internal successors, (10785), 7102 states have internal predecessors, (10785), 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) [2022-04-05 10:06:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10789 transitions. [2022-04-05 10:06:29,972 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10789 transitions. Word has length 601 [2022-04-05 10:06:29,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:29,973 INFO L478 AbstractCegarLoop]: Abstraction has 7107 states and 10789 transitions. [2022-04-05 10:06:29,973 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10789 transitions. [2022-04-05 10:06:29,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2022-04-05 10:06:29,984 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:29,984 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 9, 9, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:29,984 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 10:06:29,984 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash -588014011, now seen corresponding path program 1 times [2022-04-05 10:06:29,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:29,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594757800] [2022-04-05 10:06:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:30,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 906 proven. 0 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2022-04-05 10:06:30,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:30,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594757800] [2022-04-05 10:06:30,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594757800] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:30,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:30,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:06:30,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814609828] [2022-04-05 10:06:30,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:30,302 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:06:30,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:30,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:06:30,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:30,302 INFO L87 Difference]: Start difference. First operand 7107 states and 10789 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:31,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:32,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:33,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:33,150 INFO L93 Difference]: Finished difference Result 7553 states and 11477 transitions. [2022-04-05 10:06:33,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:06:33,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 644 [2022-04-05 10:06:33,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:33,159 INFO L225 Difference]: With dead ends: 7553 [2022-04-05 10:06:33,159 INFO L226 Difference]: Without dead ends: 7551 [2022-04-05 10:06:33,162 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:06:33,162 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:33,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 378 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-05 10:06:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7551 states. [2022-04-05 10:06:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7551 to 7551. [2022-04-05 10:06:33,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7551 states, 7546 states have (on average 1.5201431221839385) internal successors, (11471), 7546 states have internal predecessors, (11471), 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) [2022-04-05 10:06:33,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7551 states to 7551 states and 11475 transitions. [2022-04-05 10:06:33,306 INFO L78 Accepts]: Start accepts. Automaton has 7551 states and 11475 transitions. Word has length 644 [2022-04-05 10:06:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:33,306 INFO L478 AbstractCegarLoop]: Abstraction has 7551 states and 11475 transitions. [2022-04-05 10:06:33,307 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:33,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7551 states and 11475 transitions. [2022-04-05 10:06:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2022-04-05 10:06:33,316 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:33,316 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:33,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 10:06:33,317 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:33,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:33,317 INFO L85 PathProgramCache]: Analyzing trace with hash 331960158, now seen corresponding path program 1 times [2022-04-05 10:06:33,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:33,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354721885] [2022-04-05 10:06:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:33,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1710 proven. 48 refuted. 0 times theorem prover too weak. 2188 trivial. 0 not checked. [2022-04-05 10:06:33,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:33,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354721885] [2022-04-05 10:06:33,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354721885] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:06:33,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229233984] [2022-04-05 10:06:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:33,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:06:33,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:06:33,872 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) [2022-04-05 10:06:33,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-05 10:06:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:35,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 29 conjunts are in the unsatisfiable core [2022-04-05 10:06:35,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:06:35,172 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:06:35,173 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 [2022-04-05 10:06:35,230 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:06:35,231 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 [2022-04-05 10:06:35,649 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 [2022-04-05 10:06:35,680 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 [2022-04-05 10:06:35,685 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 [2022-04-05 10:06:35,727 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-04-05 10:06:35,728 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 33 treesize of output 55 [2022-04-05 10:06:35,903 INFO L356 Elim1Store]: treesize reduction 120, result has 24.1 percent of original size [2022-04-05 10:06:35,903 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 52 treesize of output 67 [2022-04-05 10:06:37,645 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:06:37,646 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 29 treesize of output 11 [2022-04-05 10:06:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2240 proven. 160 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2022-04-05 10:06:37,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:06:38,456 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 77 treesize of output 53 [2022-04-05 10:06:38,458 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 53 treesize of output 41 [2022-04-05 10:06:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2245 proven. 0 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2022-04-05 10:06:40,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229233984] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:06:40,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:06:40,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 9] total 18 [2022-04-05 10:06:40,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204888771] [2022-04-05 10:06:40,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:40,390 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 10:06:40,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:40,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 10:06:40,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-04-05 10:06:40,390 INFO L87 Difference]: Start difference. First operand 7551 states and 11475 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 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) [2022-04-05 10:06:42,408 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 [] [2022-04-05 10:06:44,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:45,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:48,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:48,587 INFO L93 Difference]: Finished difference Result 23104 states and 35072 transitions. [2022-04-05 10:06:48,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 10:06:48,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 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 654 [2022-04-05 10:06:48,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:48,606 INFO L225 Difference]: With dead ends: 23104 [2022-04-05 10:06:48,607 INFO L226 Difference]: Without dead ends: 15581 [2022-04-05 10:06:48,617 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1324 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-04-05 10:06:48,617 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 290 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 183 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:48,617 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 1019 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 643 Invalid, 2 Unknown, 183 Unchecked, 5.9s Time] [2022-04-05 10:06:48,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15581 states. [2022-04-05 10:06:48,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15581 to 12899. [2022-04-05 10:06:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12899 states, 12894 states have (on average 1.5359081743446563) internal successors, (19804), 12894 states have internal predecessors, (19804), 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) [2022-04-05 10:06:48,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12899 states to 12899 states and 19808 transitions. [2022-04-05 10:06:48,893 INFO L78 Accepts]: Start accepts. Automaton has 12899 states and 19808 transitions. Word has length 654 [2022-04-05 10:06:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:48,894 INFO L478 AbstractCegarLoop]: Abstraction has 12899 states and 19808 transitions. [2022-04-05 10:06:48,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 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) [2022-04-05 10:06:48,894 INFO L276 IsEmpty]: Start isEmpty. Operand 12899 states and 19808 transitions. [2022-04-05 10:06:48,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-04-05 10:06:48,907 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:48,908 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:48,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-05 10:06:49,108 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,SelfDestructingSolverStorable53 [2022-04-05 10:06:49,108 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2044655492, now seen corresponding path program 1 times [2022-04-05 10:06:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133721161] [2022-04-05 10:06:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2022-04-05 10:06:49,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:49,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133721161] [2022-04-05 10:06:49,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133721161] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:49,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:49,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:06:49,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806496025] [2022-04-05 10:06:49,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:49,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:06:49,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:49,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:06:49,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:06:49,465 INFO L87 Difference]: Start difference. First operand 12899 states and 19808 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:51,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:52,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:54,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:54,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:54,993 INFO L93 Difference]: Finished difference Result 27396 states and 41757 transitions. [2022-04-05 10:06:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:06:54,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 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 656 [2022-04-05 10:06:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:55,010 INFO L225 Difference]: With dead ends: 27396 [2022-04-05 10:06:55,011 INFO L226 Difference]: Without dead ends: 14525 [2022-04-05 10:06:55,023 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:06:55,023 INFO L913 BasicCegarLoop]: 302 mSDtfsCounter, 83 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:55,023 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 735 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 10:06:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14525 states. [2022-04-05 10:06:55,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14525 to 12916. [2022-04-05 10:06:55,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12916 states, 12911 states have (on average 1.5352025404693672) internal successors, (19821), 12911 states have internal predecessors, (19821), 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) [2022-04-05 10:06:55,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12916 states to 12916 states and 19825 transitions. [2022-04-05 10:06:55,335 INFO L78 Accepts]: Start accepts. Automaton has 12916 states and 19825 transitions. Word has length 656 [2022-04-05 10:06:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:55,335 INFO L478 AbstractCegarLoop]: Abstraction has 12916 states and 19825 transitions. [2022-04-05 10:06:55,335 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12916 states and 19825 transitions. [2022-04-05 10:06:55,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2022-04-05 10:06:55,352 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:55,352 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:55,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-05 10:06:55,352 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:55,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:55,353 INFO L85 PathProgramCache]: Analyzing trace with hash -703708874, now seen corresponding path program 1 times [2022-04-05 10:06:55,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:55,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749586169] [2022-04-05 10:06:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:55,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 2170 proven. 0 refuted. 0 times theorem prover too weak. 2037 trivial. 0 not checked. [2022-04-05 10:06:55,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:55,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749586169] [2022-04-05 10:06:55,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749586169] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:55,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:55,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:06:55,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949500661] [2022-04-05 10:06:55,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:55,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:06:55,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:55,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:06:55,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:06:55,664 INFO L87 Difference]: Start difference. First operand 12916 states and 19825 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:57,674 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 [] [2022-04-05 10:06:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:58,447 INFO L93 Difference]: Finished difference Result 27243 states and 41536 transitions. [2022-04-05 10:06:58,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:06:58,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 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 684 [2022-04-05 10:06:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:58,466 INFO L225 Difference]: With dead ends: 27243 [2022-04-05 10:06:58,466 INFO L226 Difference]: Without dead ends: 14355 [2022-04-05 10:06:58,481 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:06:58,481 INFO L913 BasicCegarLoop]: 300 mSDtfsCounter, 111 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:58,482 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 731 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 631 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 10:06:58,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14355 states. [2022-04-05 10:06:58,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14355 to 12916. [2022-04-05 10:06:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12916 states, 12911 states have (on average 1.5327240337696537) internal successors, (19789), 12911 states have internal predecessors, (19789), 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) [2022-04-05 10:06:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12916 states to 12916 states and 19793 transitions. [2022-04-05 10:06:58,750 INFO L78 Accepts]: Start accepts. Automaton has 12916 states and 19793 transitions. Word has length 684 [2022-04-05 10:06:58,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:58,751 INFO L478 AbstractCegarLoop]: Abstraction has 12916 states and 19793 transitions. [2022-04-05 10:06:58,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 12916 states and 19793 transitions. [2022-04-05 10:06:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-04-05 10:06:58,767 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:58,767 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:58,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-05 10:06:58,768 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:58,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1823102722, now seen corresponding path program 1 times [2022-04-05 10:06:58,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032184376] [2022-04-05 10:06:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2484 proven. 0 refuted. 0 times theorem prover too weak. 2094 trivial. 0 not checked. [2022-04-05 10:06:59,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:59,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032184376] [2022-04-05 10:06:59,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032184376] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:59,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:59,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:06:59,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957682839] [2022-04-05 10:06:59,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:59,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:06:59,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:59,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:06:59,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:06:59,149 INFO L87 Difference]: Start difference. First operand 12916 states and 19793 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:02,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:03,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:05,739 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 [] [2022-04-05 10:07:06,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:06,581 INFO L93 Difference]: Finished difference Result 27115 states and 41292 transitions. [2022-04-05 10:07:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:07:06,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 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 698 [2022-04-05 10:07:06,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:06,598 INFO L225 Difference]: With dead ends: 27115 [2022-04-05 10:07:06,598 INFO L226 Difference]: Without dead ends: 14227 [2022-04-05 10:07:06,611 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:07:06,611 INFO L913 BasicCegarLoop]: 296 mSDtfsCounter, 96 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:06,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 723 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 618 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-05 10:07:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14227 states. [2022-04-05 10:07:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14227 to 12916. [2022-04-05 10:07:06,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12916 states, 12911 states have (on average 1.5302455270699404) internal successors, (19757), 12911 states have internal predecessors, (19757), 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) [2022-04-05 10:07:06,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12916 states to 12916 states and 19761 transitions. [2022-04-05 10:07:06,935 INFO L78 Accepts]: Start accepts. Automaton has 12916 states and 19761 transitions. Word has length 698 [2022-04-05 10:07:06,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:06,936 INFO L478 AbstractCegarLoop]: Abstraction has 12916 states and 19761 transitions. [2022-04-05 10:07:06,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:06,936 INFO L276 IsEmpty]: Start isEmpty. Operand 12916 states and 19761 transitions. [2022-04-05 10:07:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-04-05 10:07:06,975 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:06,975 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:06,979 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-05 10:07:06,979 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:06,983 INFO L85 PathProgramCache]: Analyzing trace with hash 88451326, now seen corresponding path program 1 times [2022-04-05 10:07:06,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:06,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843724315] [2022-04-05 10:07:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:06,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:07,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2542 proven. 46 refuted. 0 times theorem prover too weak. 2050 trivial. 0 not checked. [2022-04-05 10:07:07,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:07,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843724315] [2022-04-05 10:07:07,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843724315] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:07,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481462228] [2022-04-05 10:07:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:07,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:07,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:07:07,536 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) [2022-04-05 10:07:07,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-05 10:07:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:09,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 3117 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 10:07:09,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:07:09,094 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:09,095 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 [2022-04-05 10:07:09,130 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:07:09,130 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 [2022-04-05 10:07:09,412 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 20 treesize of output 8 [2022-04-05 10:07:09,536 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:09,536 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 [2022-04-05 10:07:09,606 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 [2022-04-05 10:07:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2537 proven. 238 refuted. 0 times theorem prover too weak. 1863 trivial. 0 not checked. [2022-04-05 10:07:09,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:07:10,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2022-04-05 10:07:10,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481462228] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:10,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:07:10,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-04-05 10:07:10,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367775961] [2022-04-05 10:07:10,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:10,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:07:10,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:10,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:07:10,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 10:07:10,587 INFO L87 Difference]: Start difference. First operand 12916 states and 19761 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2022-04-05 10:07:12,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:12,010 INFO L93 Difference]: Finished difference Result 28722 states and 43728 transitions. [2022-04-05 10:07:12,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:07:12,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 698 [2022-04-05 10:07:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:12,029 INFO L225 Difference]: With dead ends: 28722 [2022-04-05 10:07:12,029 INFO L226 Difference]: Without dead ends: 15834 [2022-04-05 10:07:12,042 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1406 GetRequests, 1396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 10:07:12,042 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 130 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:12,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 622 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 10:07:12,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15834 states. [2022-04-05 10:07:12,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15834 to 13415. [2022-04-05 10:07:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13415 states, 13410 states have (on average 1.5415361670395227) internal successors, (20672), 13410 states have internal predecessors, (20672), 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) [2022-04-05 10:07:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13415 states to 13415 states and 20676 transitions. [2022-04-05 10:07:12,284 INFO L78 Accepts]: Start accepts. Automaton has 13415 states and 20676 transitions. Word has length 698 [2022-04-05 10:07:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:12,285 INFO L478 AbstractCegarLoop]: Abstraction has 13415 states and 20676 transitions. [2022-04-05 10:07:12,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2022-04-05 10:07:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13415 states and 20676 transitions. [2022-04-05 10:07:12,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-04-05 10:07:12,301 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:12,301 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:12,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-05 10:07:12,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:12,502 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:12,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash -539237120, now seen corresponding path program 1 times [2022-04-05 10:07:12,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:12,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549266161] [2022-04-05 10:07:12,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:12,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4645 backedges. 2441 proven. 0 refuted. 0 times theorem prover too weak. 2204 trivial. 0 not checked. [2022-04-05 10:07:12,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:12,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549266161] [2022-04-05 10:07:12,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549266161] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:07:12,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:07:12,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:07:12,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955680631] [2022-04-05 10:07:12,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:12,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:07:12,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:12,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:07:12,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:07:12,849 INFO L87 Difference]: Start difference. First operand 13415 states and 20676 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:14,859 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 [] [2022-04-05 10:07:15,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:15,465 INFO L93 Difference]: Finished difference Result 28422 states and 43629 transitions. [2022-04-05 10:07:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:07:15,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 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 700 [2022-04-05 10:07:15,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:15,483 INFO L225 Difference]: With dead ends: 28422 [2022-04-05 10:07:15,484 INFO L226 Difference]: Without dead ends: 15035 [2022-04-05 10:07:15,496 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:07:15,496 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 38 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:15,496 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 657 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:07:15,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2022-04-05 10:07:15,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 14247. [2022-04-05 10:07:15,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14247 states, 14242 states have (on average 1.5391096756073586) internal successors, (21920), 14242 states have internal predecessors, (21920), 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) [2022-04-05 10:07:15,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14247 states to 14247 states and 21924 transitions. [2022-04-05 10:07:15,798 INFO L78 Accepts]: Start accepts. Automaton has 14247 states and 21924 transitions. Word has length 700 [2022-04-05 10:07:15,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:15,798 INFO L478 AbstractCegarLoop]: Abstraction has 14247 states and 21924 transitions. [2022-04-05 10:07:15,798 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 14247 states and 21924 transitions. [2022-04-05 10:07:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-04-05 10:07:15,816 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:15,816 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:15,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-05 10:07:15,816 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:15,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash 876144030, now seen corresponding path program 1 times [2022-04-05 10:07:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:15,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187111313] [2022-04-05 10:07:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 2525 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2022-04-05 10:07:16,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:16,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187111313] [2022-04-05 10:07:16,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187111313] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:07:16,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:07:16,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:07:16,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178329477] [2022-04-05 10:07:16,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:16,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:07:16,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:16,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:07:16,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:07:16,112 INFO L87 Difference]: Start difference. First operand 14247 states and 21924 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:17,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:19,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:20,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:22,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:23,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:23,403 INFO L93 Difference]: Finished difference Result 29724 states and 45631 transitions. [2022-04-05 10:07:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:07:23,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 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 706 [2022-04-05 10:07:23,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:23,421 INFO L225 Difference]: With dead ends: 29724 [2022-04-05 10:07:23,421 INFO L226 Difference]: Without dead ends: 15505 [2022-04-05 10:07:23,435 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:07:23,435 INFO L913 BasicCegarLoop]: 273 mSDtfsCounter, 52 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:23,435 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 677 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 544 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 10:07:23,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15505 states. [2022-04-05 10:07:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15505 to 14757. [2022-04-05 10:07:23,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14757 states, 14752 states have (on average 1.5400623644251628) internal successors, (22719), 14752 states have internal predecessors, (22719), 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) [2022-04-05 10:07:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14757 states to 14757 states and 22723 transitions. [2022-04-05 10:07:23,687 INFO L78 Accepts]: Start accepts. Automaton has 14757 states and 22723 transitions. Word has length 706 [2022-04-05 10:07:23,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:23,687 INFO L478 AbstractCegarLoop]: Abstraction has 14757 states and 22723 transitions. [2022-04-05 10:07:23,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand 14757 states and 22723 transitions. [2022-04-05 10:07:23,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2022-04-05 10:07:23,703 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:23,704 INFO L499 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 20, 20, 20, 20, 20, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:23,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-05 10:07:23,704 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:23,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:23,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1108194430, now seen corresponding path program 1 times [2022-04-05 10:07:23,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:23,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432691397] [2022-04-05 10:07:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:23,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:24,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4604 backedges. 2451 proven. 0 refuted. 0 times theorem prover too weak. 2153 trivial. 0 not checked. [2022-04-05 10:07:24,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:24,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432691397] [2022-04-05 10:07:24,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432691397] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:07:24,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:07:24,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:07:24,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557505327] [2022-04-05 10:07:24,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:24,069 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:07:24,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:24,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:07:24,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:07:24,069 INFO L87 Difference]: Start difference. First operand 14757 states and 22723 transitions. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:25,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:27,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:29,160 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 [] [2022-04-05 10:07:29,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:29,882 INFO L93 Difference]: Finished difference Result 31682 states and 48663 transitions. [2022-04-05 10:07:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:07:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (3), 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 710 [2022-04-05 10:07:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:29,902 INFO L225 Difference]: With dead ends: 31682 [2022-04-05 10:07:29,902 INFO L226 Difference]: Without dead ends: 16953 [2022-04-05 10:07:29,916 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:07:29,916 INFO L913 BasicCegarLoop]: 269 mSDtfsCounter, 55 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:29,916 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 670 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 563 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:07:29,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16953 states. [2022-04-05 10:07:30,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16953 to 15749. [2022-04-05 10:07:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15749 states, 15744 states have (on average 1.543381605691057) internal successors, (24299), 15744 states have internal predecessors, (24299), 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) [2022-04-05 10:07:30,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15749 states to 15749 states and 24303 transitions. [2022-04-05 10:07:30,272 INFO L78 Accepts]: Start accepts. Automaton has 15749 states and 24303 transitions. Word has length 710 [2022-04-05 10:07:30,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:30,272 INFO L478 AbstractCegarLoop]: Abstraction has 15749 states and 24303 transitions. [2022-04-05 10:07:30,272 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 4 states have internal predecessors, (234), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:30,272 INFO L276 IsEmpty]: Start isEmpty. Operand 15749 states and 24303 transitions. [2022-04-05 10:07:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-04-05 10:07:30,290 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:30,290 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:30,290 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-05 10:07:30,291 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:30,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:30,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1995830594, now seen corresponding path program 1 times [2022-04-05 10:07:30,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:30,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740174667] [2022-04-05 10:07:30,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:30,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:31,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2110 proven. 586 refuted. 0 times theorem prover too weak. 2163 trivial. 0 not checked. [2022-04-05 10:07:31,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:31,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740174667] [2022-04-05 10:07:31,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740174667] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:31,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027293581] [2022-04-05 10:07:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:31,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:31,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:07:31,065 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) [2022-04-05 10:07:31,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-05 10:07:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:32,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 3123 conjuncts, 33 conjunts are in the unsatisfiable core [2022-04-05 10:07:32,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:07:32,587 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:07:32,587 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 [2022-04-05 10:07:32,878 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:32,878 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 [2022-04-05 10:07:32,963 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:07:32,963 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 [2022-04-05 10:07:33,225 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 6 treesize of output 5 [2022-04-05 10:07:33,244 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 [2022-04-05 10:07:33,254 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 [2022-04-05 10:07:33,267 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-05 10:07:33,268 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 [2022-04-05 10:07:33,337 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-04-05 10:07:33,338 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 33 treesize of output 45 [2022-04-05 10:07:33,429 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:33,429 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 23 [2022-04-05 10:07:33,497 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 20 treesize of output 8 [2022-04-05 10:07:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2445 proven. 215 refuted. 0 times theorem prover too weak. 2199 trivial. 0 not checked. [2022-04-05 10:07:33,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:07:33,941 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 [2022-04-05 10:07:33,955 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 [2022-04-05 10:07:35,897 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 74 treesize of output 72 [2022-04-05 10:07:35,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 74 treesize of output 70 [2022-04-05 10:07:35,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 80 treesize of output 64 [2022-04-05 10:07:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2258 proven. 0 refuted. 0 times theorem prover too weak. 2601 trivial. 0 not checked. [2022-04-05 10:07:36,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027293581] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:36,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:07:36,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 9] total 22 [2022-04-05 10:07:36,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969568618] [2022-04-05 10:07:36,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:36,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:07:36,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:36,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:07:36,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=407, Unknown=1, NotChecked=0, Total=462 [2022-04-05 10:07:36,361 INFO L87 Difference]: Start difference. First operand 15749 states and 24303 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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) [2022-04-05 10:07:38,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:38,888 INFO L93 Difference]: Finished difference Result 39280 states and 60534 transitions. [2022-04-05 10:07:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:07:38,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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 712 [2022-04-05 10:07:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:38,918 INFO L225 Difference]: With dead ends: 39280 [2022-04-05 10:07:38,918 INFO L226 Difference]: Without dead ends: 23559 [2022-04-05 10:07:38,936 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 1423 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=60, Invalid=445, Unknown=1, NotChecked=0, Total=506 [2022-04-05 10:07:38,936 INFO L913 BasicCegarLoop]: 339 mSDtfsCounter, 164 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:38,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 939 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 286 Invalid, 0 Unknown, 109 Unchecked, 2.2s Time] [2022-04-05 10:07:38,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23559 states. [2022-04-05 10:07:39,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23559 to 16481. [2022-04-05 10:07:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16481 states, 16476 states have (on average 1.5412114590920125) internal successors, (25393), 16476 states have internal predecessors, (25393), 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) [2022-04-05 10:07:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16481 states to 16481 states and 25397 transitions. [2022-04-05 10:07:39,336 INFO L78 Accepts]: Start accepts. Automaton has 16481 states and 25397 transitions. Word has length 712 [2022-04-05 10:07:39,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:39,336 INFO L478 AbstractCegarLoop]: Abstraction has 16481 states and 25397 transitions. [2022-04-05 10:07:39,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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) [2022-04-05 10:07:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 16481 states and 25397 transitions. [2022-04-05 10:07:39,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-04-05 10:07:39,356 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:39,356 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:39,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-05 10:07:39,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:39,557 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:39,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash 773050850, now seen corresponding path program 1 times [2022-04-05 10:07:39,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:39,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123409460] [2022-04-05 10:07:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:39,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:42,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1566 proven. 2997 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-04-05 10:07:42,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:42,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123409460] [2022-04-05 10:07:42,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123409460] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:42,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271477459] [2022-04-05 10:07:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:42,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:42,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:07:42,187 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) [2022-04-05 10:07:42,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-05 10:07:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:43,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 154 conjunts are in the unsatisfiable core [2022-04-05 10:07:43,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:07:43,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:43,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-04-05 10:07:44,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:44,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:44,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:44,072 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 10:07:44,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-05 10:07:44,527 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 [2022-04-05 10:07:44,551 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-04-05 10:07:44,551 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 94 treesize of output 82 [2022-04-05 10:07:44,566 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-04-05 10:07:44,567 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 64 treesize of output 64 [2022-04-05 10:07:44,570 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 11 treesize of output 7 [2022-04-05 10:07:44,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:44,626 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 45 treesize of output 44 [2022-04-05 10:07:44,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:44,629 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 45 treesize of output 44 [2022-04-05 10:07:44,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:44,645 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 10:07:44,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 69 [2022-04-05 10:07:45,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,139 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 97 treesize of output 84 [2022-04-05 10:07:45,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,160 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 10:07:45,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 80 [2022-04-05 10:07:45,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,164 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 93 treesize of output 80 [2022-04-05 10:07:45,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:45,897 INFO L356 Elim1Store]: treesize reduction 32, result has 62.4 percent of original size [2022-04-05 10:07:45,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 90 [2022-04-05 10:07:46,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,070 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 60 treesize of output 53 [2022-04-05 10:07:46,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,074 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 60 treesize of output 53 [2022-04-05 10:07:46,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,096 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 60 treesize of output 53 [2022-04-05 10:07:46,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,102 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 60 treesize of output 53 [2022-04-05 10:07:46,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,655 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 10:07:46,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 122 [2022-04-05 10:07:46,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,684 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 10:07:46,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 111 [2022-04-05 10:07:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 76 [2022-04-05 10:07:46,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:46,969 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 10:07:46,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 82 [2022-04-05 10:07:47,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:47,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:47,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:47,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 73 [2022-04-05 10:07:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:47,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:47,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:47,896 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 10:07:47,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 67 [2022-04-05 10:07:47,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:47,981 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 10:07:47,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 152 [2022-04-05 10:07:47,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,017 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 10:07:48,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 134 treesize of output 129 [2022-04-05 10:07:48,026 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 11 treesize of output 7 [2022-04-05 10:07:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 112 [2022-04-05 10:07:48,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 118 [2022-04-05 10:07:48,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:48,233 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 10:07:48,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 152 [2022-04-05 10:07:49,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 159 [2022-04-05 10:07:49,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,605 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 10:07:49,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 177 treesize of output 164 [2022-04-05 10:07:49,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:49,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 143 [2022-04-05 10:07:52,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,462 INFO L356 Elim1Store]: treesize reduction 161, result has 21.1 percent of original size [2022-04-05 10:07:52,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 77 treesize of output 95 [2022-04-05 10:07:52,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2022-04-05 10:07:52,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2022-04-05 10:07:52,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2022-04-05 10:07:52,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2022-04-05 10:07:52,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:52,648 INFO L356 Elim1Store]: treesize reduction 131, result has 25.6 percent of original size [2022-04-05 10:07:52,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 84 treesize of output 106 [2022-04-05 10:07:53,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:07:53,805 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-04-05 10:07:53,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 98 [2022-04-05 10:07:53,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:07:53,839 INFO L356 Elim1Store]: treesize reduction 103, result has 30.4 percent of original size [2022-04-05 10:07:53,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 100 [2022-04-05 10:07:53,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,846 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 89 treesize of output 53 [2022-04-05 10:07:53,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,978 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 28 treesize of output 31 [2022-04-05 10:07:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:53,988 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 28 treesize of output 31 [2022-04-05 10:07:54,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:54,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:54,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:54,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-04-05 10:07:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:07:54,405 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 23 treesize of output 22 [2022-04-05 10:07:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 3046 proven. 817 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2022-04-05 10:07:54,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:07:54,601 WARN L833 $PredicateComparison]: unable to prove that (or (= |c_ssl3_accept_#t~mem145| 0) (forall ((v_ArrVal_23514 (Array Int Int))) (not (= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)) v_ArrVal_23514) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8640)))) is different from false [2022-04-05 10:07:54,912 WARN L833 $PredicateComparison]: unable to prove that (or (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 128 c_ssl3_accept_~s.offset)) 0) (forall ((v_ArrVal_23514 (Array Int Int)) (v_ArrVal_23508 Int)) (not (= 8640 (let ((.cse0 (+ 72 c_ssl3_accept_~s.offset))) (select (select (store (store |c_#memory_int| c_ssl3_accept_~s.base (store (store (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse0 v_ArrVal_23508) (+ 88 c_ssl3_accept_~s.offset) 0) .cse0 8448)) (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)) v_ArrVal_23514) c_ssl3_accept_~s.base) .cse0)))))) is different from false [2022-04-05 10:07:54,960 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_23500 Int) (v_ArrVal_23514 (Array Int Int)) (v_ArrVal_23502 Int) (v_ArrVal_23508 Int)) (let ((.cse5 (+ 248 c_ssl3_accept_~s.offset))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse5)) (.cse4 (+ 192 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse5)))) (let ((.cse1 (store |c_#memory_int| .cse3 (store (select |c_#memory_int| .cse3) .cse4 v_ArrVal_23500)))) (let ((.cse0 (select .cse1 c_ssl3_accept_~s.base))) (or (= (select .cse0 (+ 128 c_ssl3_accept_~s.offset)) 0) (not (= (let ((.cse2 (+ 72 c_ssl3_accept_~s.offset))) (select (select (store (store .cse1 c_ssl3_accept_~s.base (store (store (store .cse0 .cse2 v_ArrVal_23508) (+ 88 c_ssl3_accept_~s.offset) 0) .cse2 8448)) (select (select (store |c_#memory_$Pointer$.base| .cse3 (store (select |c_#memory_$Pointer$.base| .cse3) .cse4 v_ArrVal_23502)) c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)) v_ArrVal_23514) c_ssl3_accept_~s.base) .cse2)) 8640)))))))) is different from false [2022-04-05 10:07:55,642 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_23496 Int) (v_ArrVal_23498 Int) (v_ArrVal_23500 Int) (v_ArrVal_23514 (Array Int Int)) (v_ArrVal_23502 Int) (v_ArrVal_23508 Int)) (let ((.cse7 (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base)) (.cse9 (+ 248 c_ssl3_accept_~s.offset))) (let ((.cse5 (select .cse7 .cse9)) (.cse6 (+ 192 (select (select |c_#memory_$Pointer$.offset| c_ssl3_accept_~s.base) .cse9))) (.cse3 (+ 88 c_ssl3_accept_~s.offset))) (let ((.cse1 (let ((.cse8 (store |c_#memory_int| c_ssl3_accept_~s.base (store (select |c_#memory_int| c_ssl3_accept_~s.base) .cse3 v_ArrVal_23498)))) (store .cse8 .cse5 (store (select .cse8 .cse5) .cse6 v_ArrVal_23500))))) (let ((.cse0 (select .cse1 c_ssl3_accept_~s.base))) (or (= (select .cse0 (+ 128 c_ssl3_accept_~s.offset)) 0) (not (= (let ((.cse2 (+ 72 c_ssl3_accept_~s.offset))) (select (select (store (store .cse1 c_ssl3_accept_~s.base (store (store (store .cse0 .cse2 v_ArrVal_23508) .cse3 0) .cse2 8448)) (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base (store .cse7 .cse3 v_ArrVal_23496)))) (store .cse4 .cse5 (store (select .cse4 .cse5) .cse6 v_ArrVal_23502))) c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)) v_ArrVal_23514) c_ssl3_accept_~s.base) .cse2)) 8640)))))))) is different from false [2022-04-05 10:08:00,098 INFO L356 Elim1Store]: treesize reduction 5858, result has 3.5 percent of original size [2022-04-05 10:08:00,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 1698182 treesize of output 1691620 [2022-04-05 10:08:36,746 WARN L232 SmtUtils]: Spent 36.64s on a formula simplification. DAG size of input: 1458 DAG size of output: 1450 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-04-05 10:08:36,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:36,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:36,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:36,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:36,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:36,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:36,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:36,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:36,849 INFO L356 Elim1Store]: treesize reduction 218, result has 16.8 percent of original size [2022-04-05 10:08:36,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 3703 treesize of output 3541 [2022-04-05 10:08:36,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 4 [2022-04-05 10:10:36,475 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:10:36,668 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 6032245596454 treesize of output 1 [2022-04-05 10:10:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2612 proven. 755 refuted. 61 times theorem prover too weak. 1160 trivial. 271 not checked. [2022-04-05 10:10:36,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271477459] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 10:10:36,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 10:10:36,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25, 23] total 70 [2022-04-05 10:10:36,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094020723] [2022-04-05 10:10:36,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 10:10:36,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-04-05 10:10:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:10:36,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-04-05 10:10:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=593, Invalid=3681, Unknown=32, NotChecked=524, Total=4830 [2022-04-05 10:10:36,951 INFO L87 Difference]: Start difference. First operand 16481 states and 25397 transitions. Second operand has 70 states, 70 states have (on average 19.714285714285715) internal successors, (1380), 68 states have internal predecessors, (1380), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:10:38,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:40,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:41,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:43,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:46,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:49,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:51,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:53,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:55,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:14:04,126 WARN L232 SmtUtils]: Spent 12.27s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)