/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.08.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:28:41,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:28:41,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:28:41,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:28:41,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:28:41,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:28:41,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:28:41,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:28:41,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:28:41,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:28:41,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:28:41,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:28:41,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:28:41,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:28:41,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:28:41,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:28:41,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:28:41,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:28:41,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:28:41,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:28:41,349 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:28:41,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:28:41,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:28:41,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:28:41,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:28:41,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:28:41,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:28:41,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:28:41,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:28:41,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:28:41,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:28:41,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:28:41,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:28:41,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:28:41,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:28:41,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:28:41,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:28:41,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:28:41,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:28:41,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:28:41,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:28:41,393 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:28:41,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:28:41,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:28:41,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:28:41,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:28:41,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:28:41,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:28:41,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:28:41,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:28:41,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:28:41,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:28:41,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:28:41,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:28:41,396 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:28:41,396 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:28:41,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:28:41,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:28:41,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:28:41,555 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:28:41,555 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:28:41,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-03-17 23:28:41,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b890f55/31c98863987540afa467d5d529c5ba3e/FLAG835e113f3 [2022-03-17 23:28:42,177 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:28:42,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-03-17 23:28:42,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b890f55/31c98863987540afa467d5d529c5ba3e/FLAG835e113f3 [2022-03-17 23:28:42,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b890f55/31c98863987540afa467d5d529c5ba3e [2022-03-17 23:28:42,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:28:42,375 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:28:42,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:28:42,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:28:42,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:28:42,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2f99b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42, skipping insertion in model container [2022-03-17 23:28:42,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:28:42,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:28:42,735 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.08.i.cil-2.c[74416,74429] [2022-03-17 23:28:42,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:28:42,750 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:28:42,814 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.08.i.cil-2.c[74416,74429] [2022-03-17 23:28:42,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:28:42,826 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:28:42,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42 WrapperNode [2022-03-17 23:28:42,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:28:42,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:28:42,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:28:42,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:28:42,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:28:42,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:28:42,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:28:42,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:28:42,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (1/1) ... [2022-03-17 23:28:42,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:28:42,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:28:42,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 23:28:42,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 23:28:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:28:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:28:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:28:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:28:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:28:43,072 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:28:43,073 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:28:43,932 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:28:44,296 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:28:44,296 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:28:44,304 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:28:44,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:28:44,310 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:28:44,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:28:44 BoogieIcfgContainer [2022-03-17 23:28:44,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:28:44,312 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:28:44,312 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:28:44,327 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:28:44,330 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:28:44" (1/1) ... [2022-03-17 23:28:44,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:28:44 BasicIcfg [2022-03-17 23:28:44,392 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:28:44,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:28:44,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:28:44,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:28:44,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:28:42" (1/4) ... [2022-03-17 23:28:44,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bb6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:28:44, skipping insertion in model container [2022-03-17 23:28:44,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:42" (2/4) ... [2022-03-17 23:28:44,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bb6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:28:44, skipping insertion in model container [2022-03-17 23:28:44,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:28:44" (3/4) ... [2022-03-17 23:28:44,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bb6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:28:44, skipping insertion in model container [2022-03-17 23:28:44,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:28:44" (4/4) ... [2022-03-17 23:28:44,403 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-2.cqvasr [2022-03-17 23:28:44,406 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:28:44,406 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:28:44,439 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:28:44,445 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 23:28:44,446 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:28:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 23:28:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 23:28:44,466 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:44,467 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:44,467 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:44,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:44,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1558892099, now seen corresponding path program 1 times [2022-03-17 23:28:44,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:44,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440199272] [2022-03-17 23:28:44,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:44,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:28:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:44,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440199272] [2022-03-17 23:28:44,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440199272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:44,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:44,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:44,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253665444] [2022-03-17 23:28:44,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:44,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:44,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:44,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:44,865 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:47,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:49,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:50,669 INFO L93 Difference]: Finished difference Result 334 states and 560 transitions. [2022-03-17 23:28:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:50,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-17 23:28:50,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:50,677 INFO L225 Difference]: With dead ends: 334 [2022-03-17 23:28:50,678 INFO L226 Difference]: Without dead ends: 170 [2022-03-17 23:28:50,679 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:50,681 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:50,682 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 413 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:28:50,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-17 23:28:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-03-17 23:28:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-03-17 23:28:50,710 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 49 [2022-03-17 23:28:50,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:50,711 INFO L478 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-03-17 23:28:50,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-03-17 23:28:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 23:28:50,712 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:50,713 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:50,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:28:50,713 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:50,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2112043474, now seen corresponding path program 1 times [2022-03-17 23:28:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:50,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612833628] [2022-03-17 23:28:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:28:50,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:50,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612833628] [2022-03-17 23:28:50,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612833628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:50,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:50,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:50,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327897906] [2022-03-17 23:28:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:50,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:50,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:50,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:50,972 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:52,014 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 [] [2022-03-17 23:28:53,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:55,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:57,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:58,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:58,358 INFO L93 Difference]: Finished difference Result 397 states and 612 transitions. [2022-03-17 23:28:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:58,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 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 62 [2022-03-17 23:28:58,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:58,361 INFO L225 Difference]: With dead ends: 397 [2022-03-17 23:28:58,361 INFO L226 Difference]: Without dead ends: 270 [2022-03-17 23:28:58,362 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:28:58,362 INFO L912 BasicCegarLoop]: 259 mSDtfsCounter, 143 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:58,363 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 626 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 620 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:28:58,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-03-17 23:28:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 169. [2022-03-17 23:28:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-03-17 23:28:58,373 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 62 [2022-03-17 23:28:58,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:58,373 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-03-17 23:28:58,373 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-03-17 23:28:58,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:28:58,374 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:58,375 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:58,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:28:58,375 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:58,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:58,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1900150377, now seen corresponding path program 1 times [2022-03-17 23:28:58,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:58,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550521810] [2022-03-17 23:28:58,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:58,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:58,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:28:58,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:58,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550521810] [2022-03-17 23:28:58,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550521810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:58,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:58,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:58,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920777820] [2022-03-17 23:28:58,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:58,480 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:58,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:58,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:58,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:58,481 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:01,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:03,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:05,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:05,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:05,416 INFO L93 Difference]: Finished difference Result 328 states and 501 transitions. [2022-03-17 23:29:05,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:05,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:29:05,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:05,418 INFO L225 Difference]: With dead ends: 328 [2022-03-17 23:29:05,418 INFO L226 Difference]: Without dead ends: 185 [2022-03-17 23:29:05,419 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:05,420 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:05,420 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:29:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-17 23:29:05,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-17 23:29:05,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-03-17 23:29:05,427 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 63 [2022-03-17 23:29:05,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:05,427 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-03-17 23:29:05,427 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-03-17 23:29:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:29:05,429 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:05,429 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:05,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:29:05,429 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:05,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:05,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1607224759, now seen corresponding path program 1 times [2022-03-17 23:29:05,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:05,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989443411] [2022-03-17 23:29:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:05,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:05,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:05,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989443411] [2022-03-17 23:29:05,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989443411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:05,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:05,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:05,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715589113] [2022-03-17 23:29:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:05,522 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:05,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:05,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:05,523 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:07,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:08,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:10,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:12,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:12,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:12,864 INFO L93 Difference]: Finished difference Result 429 states and 662 transitions. [2022-03-17 23:29:12,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:12,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:29:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:12,865 INFO L225 Difference]: With dead ends: 429 [2022-03-17 23:29:12,865 INFO L226 Difference]: Without dead ends: 286 [2022-03-17 23:29:12,866 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:12,867 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 147 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:12,867 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:29:12,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-17 23:29:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 181. [2022-03-17 23:29:12,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5340909090909092) internal successors, (270), 176 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:12,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 274 transitions. [2022-03-17 23:29:12,874 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 274 transitions. Word has length 63 [2022-03-17 23:29:12,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:12,874 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 274 transitions. [2022-03-17 23:29:12,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 274 transitions. [2022-03-17 23:29:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:29:12,875 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:12,876 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:12,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:29:12,876 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:12,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:12,876 INFO L85 PathProgramCache]: Analyzing trace with hash 159788553, now seen corresponding path program 1 times [2022-03-17 23:29:12,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:12,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017342037] [2022-03-17 23:29:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:12,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:12,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:12,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:12,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017342037] [2022-03-17 23:29:12,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017342037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:12,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:12,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:12,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898492389] [2022-03-17 23:29:12,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:12,999 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:12,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:12,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:12,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:13,000 INFO L87 Difference]: Start difference. First operand 181 states and 274 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:14,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:16,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:18,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:20,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:21,204 INFO L93 Difference]: Finished difference Result 441 states and 676 transitions. [2022-03-17 23:29:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:21,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:29:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:21,206 INFO L225 Difference]: With dead ends: 441 [2022-03-17 23:29:21,206 INFO L226 Difference]: Without dead ends: 286 [2022-03-17 23:29:21,206 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:21,207 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 141 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:21,207 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 474 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-17 23:29:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-17 23:29:21,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 186. [2022-03-17 23:29:21,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.5359116022099448) internal successors, (278), 181 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:21,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 282 transitions. [2022-03-17 23:29:21,216 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 282 transitions. Word has length 63 [2022-03-17 23:29:21,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:21,216 INFO L478 AbstractCegarLoop]: Abstraction has 186 states and 282 transitions. [2022-03-17 23:29:21,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:21,216 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 282 transitions. [2022-03-17 23:29:21,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:29:21,217 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:21,217 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:21,217 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:29:21,217 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:21,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:21,218 INFO L85 PathProgramCache]: Analyzing trace with hash -298087703, now seen corresponding path program 1 times [2022-03-17 23:29:21,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:21,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347129213] [2022-03-17 23:29:21,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:21,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:21,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:21,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347129213] [2022-03-17 23:29:21,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347129213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:21,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:21,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:21,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107735703] [2022-03-17 23:29:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:21,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:21,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:21,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:21,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:21,335 INFO L87 Difference]: Start difference. First operand 186 states and 282 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:24,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:26,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:26,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:26,580 INFO L93 Difference]: Finished difference Result 445 states and 682 transitions. [2022-03-17 23:29:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:26,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:29:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:26,581 INFO L225 Difference]: With dead ends: 445 [2022-03-17 23:29:26,582 INFO L226 Difference]: Without dead ends: 285 [2022-03-17 23:29:26,582 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:26,582 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 139 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:26,583 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:29:26,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-03-17 23:29:26,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-03-17 23:29:26,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-03-17 23:29:26,588 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 63 [2022-03-17 23:29:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:26,589 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-03-17 23:29:26,589 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-03-17 23:29:26,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:29:26,589 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:26,589 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:26,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:29:26,590 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash 463944242, now seen corresponding path program 1 times [2022-03-17 23:29:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:26,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433114381] [2022-03-17 23:29:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:26,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:26,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:26,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433114381] [2022-03-17 23:29:26,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433114381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:26,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:26,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588315944] [2022-03-17 23:29:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:26,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:26,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:26,696 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:29,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:31,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:31,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:31,757 INFO L93 Difference]: Finished difference Result 446 states and 681 transitions. [2022-03-17 23:29:31,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:31,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:29:31,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:31,759 INFO L225 Difference]: With dead ends: 446 [2022-03-17 23:29:31,759 INFO L226 Difference]: Without dead ends: 285 [2022-03-17 23:29:31,759 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:31,760 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 143 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:31,760 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:29:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-03-17 23:29:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-03-17 23:29:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.510989010989011) internal successors, (275), 182 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2022-03-17 23:29:31,765 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 64 [2022-03-17 23:29:31,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:31,765 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2022-03-17 23:29:31,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:31,765 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2022-03-17 23:29:31,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:29:31,766 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:31,766 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:31,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:29:31,766 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:31,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:31,766 INFO L85 PathProgramCache]: Analyzing trace with hash -192748059, now seen corresponding path program 1 times [2022-03-17 23:29:31,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:31,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701938885] [2022-03-17 23:29:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:31,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:31,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:31,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:31,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:31,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701938885] [2022-03-17 23:29:31,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701938885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:31,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:31,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:31,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636780247] [2022-03-17 23:29:31,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:31,874 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:31,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:31,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:31,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:31,874 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:33,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:35,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:37,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:39,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:39,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:39,658 INFO L93 Difference]: Finished difference Result 361 states and 543 transitions. [2022-03-17 23:29:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:39,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 23:29:39,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:39,660 INFO L225 Difference]: With dead ends: 361 [2022-03-17 23:29:39,660 INFO L226 Difference]: Without dead ends: 200 [2022-03-17 23:29:39,660 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:39,661 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:39,661 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-03-17 23:29:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-17 23:29:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-17 23:29:39,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5054945054945055) internal successors, (274), 182 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:39,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 278 transitions. [2022-03-17 23:29:39,665 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 278 transitions. Word has length 65 [2022-03-17 23:29:39,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:39,665 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 278 transitions. [2022-03-17 23:29:39,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 278 transitions. [2022-03-17 23:29:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:29:39,666 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:39,666 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:39,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:29:39,666 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:39,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:39,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1669552495, now seen corresponding path program 1 times [2022-03-17 23:29:39,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:39,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756300418] [2022-03-17 23:29:39,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:39,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:39,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:39,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756300418] [2022-03-17 23:29:39,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756300418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:39,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:39,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:39,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294478445] [2022-03-17 23:29:39,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:39,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:39,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:39,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:39,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:39,798 INFO L87 Difference]: Start difference. First operand 187 states and 278 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:40,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:42,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:44,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:45,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:45,181 INFO L93 Difference]: Finished difference Result 351 states and 529 transitions. [2022-03-17 23:29:45,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:45,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:29:45,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:45,183 INFO L225 Difference]: With dead ends: 351 [2022-03-17 23:29:45,183 INFO L226 Difference]: Without dead ends: 190 [2022-03-17 23:29:45,183 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:45,184 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:45,184 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:29:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-17 23:29:45,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-03-17 23:29:45,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5) internal successors, (273), 182 states have internal predecessors, (273), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:45,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 277 transitions. [2022-03-17 23:29:45,189 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 277 transitions. Word has length 66 [2022-03-17 23:29:45,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:45,189 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 277 transitions. [2022-03-17 23:29:45,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:45,190 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 277 transitions. [2022-03-17 23:29:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:29:45,190 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:45,190 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:45,190 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:29:45,191 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:45,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:45,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1381411040, now seen corresponding path program 1 times [2022-03-17 23:29:45,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:45,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472641193] [2022-03-17 23:29:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:45,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:45,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:45,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472641193] [2022-03-17 23:29:45,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472641193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:45,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:45,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:45,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589102629] [2022-03-17 23:29:45,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:45,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:45,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:45,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:45,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:45,276 INFO L87 Difference]: Start difference. First operand 187 states and 277 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:46,624 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 [] [2022-03-17 23:29:48,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:49,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:49,293 INFO L93 Difference]: Finished difference Result 465 states and 701 transitions. [2022-03-17 23:29:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:49,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:29:49,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:49,295 INFO L225 Difference]: With dead ends: 465 [2022-03-17 23:29:49,295 INFO L226 Difference]: Without dead ends: 304 [2022-03-17 23:29:49,295 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:49,296 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:49,296 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 23:29:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-03-17 23:29:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 227. [2022-03-17 23:29:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 222 states have (on average 1.5360360360360361) internal successors, (341), 222 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 345 transitions. [2022-03-17 23:29:49,301 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 345 transitions. Word has length 66 [2022-03-17 23:29:49,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:49,301 INFO L478 AbstractCegarLoop]: Abstraction has 227 states and 345 transitions. [2022-03-17 23:29:49,301 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 345 transitions. [2022-03-17 23:29:49,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:29:49,302 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:49,302 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:49,302 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:29:49,302 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash -96502252, now seen corresponding path program 1 times [2022-03-17 23:29:49,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:49,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762825824] [2022-03-17 23:29:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:49,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:49,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:49,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762825824] [2022-03-17 23:29:49,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762825824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:49,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:49,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:49,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760043048] [2022-03-17 23:29:49,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:49,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:49,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:49,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:49,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:49,392 INFO L87 Difference]: Start difference. First operand 227 states and 345 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:51,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:52,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:52,499 INFO L93 Difference]: Finished difference Result 468 states and 718 transitions. [2022-03-17 23:29:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:52,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 23:29:52,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:52,500 INFO L225 Difference]: With dead ends: 468 [2022-03-17 23:29:52,500 INFO L226 Difference]: Without dead ends: 267 [2022-03-17 23:29:52,501 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:52,501 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 29 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:52,501 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 509 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 23:29:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-17 23:29:52,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 249. [2022-03-17 23:29:52,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.5327868852459017) internal successors, (374), 244 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 378 transitions. [2022-03-17 23:29:52,506 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 378 transitions. Word has length 67 [2022-03-17 23:29:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:52,506 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 378 transitions. [2022-03-17 23:29:52,506 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 378 transitions. [2022-03-17 23:29:52,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-17 23:29:52,507 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:52,509 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:52,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:29:52,509 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1834537326, now seen corresponding path program 1 times [2022-03-17 23:29:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:52,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022851026] [2022-03-17 23:29:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:52,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:29:52,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:52,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022851026] [2022-03-17 23:29:52,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022851026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:52,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:52,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067156867] [2022-03-17 23:29:52,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:52,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:52,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:52,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:52,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:52,622 INFO L87 Difference]: Start difference. First operand 249 states and 378 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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) [2022-03-17 23:29:53,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:55,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:57,405 INFO L93 Difference]: Finished difference Result 485 states and 742 transitions. [2022-03-17 23:29:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:57,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 81 [2022-03-17 23:29:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:57,406 INFO L225 Difference]: With dead ends: 485 [2022-03-17 23:29:57,406 INFO L226 Difference]: Without dead ends: 262 [2022-03-17 23:29:57,407 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:57,407 INFO L912 BasicCegarLoop]: 228 mSDtfsCounter, 20 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:57,408 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 570 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:29:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-17 23:29:57,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 249. [2022-03-17 23:29:57,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.528688524590164) internal successors, (373), 244 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) [2022-03-17 23:29:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2022-03-17 23:29:57,412 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 81 [2022-03-17 23:29:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:57,413 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2022-03-17 23:29:57,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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) [2022-03-17 23:29:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2022-03-17 23:29:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 23:29:57,413 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:57,413 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:57,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:29:57,414 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:57,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1618514662, now seen corresponding path program 1 times [2022-03-17 23:29:57,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:57,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456834657] [2022-03-17 23:29:57,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:57,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-17 23:29:57,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:57,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456834657] [2022-03-17 23:29:57,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456834657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:57,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:57,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:29:57,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070844827] [2022-03-17 23:29:57,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:57,508 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:29:57,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:29:57,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:57,509 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:58,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:01,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:03,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:05,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:06,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:06,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:06,888 INFO L93 Difference]: Finished difference Result 481 states and 736 transitions. [2022-03-17 23:30:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:30:06,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 82 [2022-03-17 23:30:06,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:06,889 INFO L225 Difference]: With dead ends: 481 [2022-03-17 23:30:06,889 INFO L226 Difference]: Without dead ends: 258 [2022-03-17 23:30:06,890 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:30:06,890 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:06,890 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 433 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2022-03-17 23:30:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-17 23:30:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-03-17 23:30:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.517786561264822) internal successors, (384), 253 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:06,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 388 transitions. [2022-03-17 23:30:06,895 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 388 transitions. Word has length 82 [2022-03-17 23:30:06,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:06,895 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 388 transitions. [2022-03-17 23:30:06,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:06,896 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 388 transitions. [2022-03-17 23:30:06,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:30:06,896 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:06,896 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:06,896 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:30:06,896 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:06,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1089385046, now seen corresponding path program 1 times [2022-03-17 23:30:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:06,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38154626] [2022-03-17 23:30:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:06,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:30:06,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:06,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38154626] [2022-03-17 23:30:06,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38154626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:06,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:06,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149725409] [2022-03-17 23:30:06,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:06,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:06,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:06,996 INFO L87 Difference]: Start difference. First operand 258 states and 388 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:08,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:10,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:12,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:13,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:13,908 INFO L93 Difference]: Finished difference Result 597 states and 907 transitions. [2022-03-17 23:30:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:13,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:30:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:13,910 INFO L225 Difference]: With dead ends: 597 [2022-03-17 23:30:13,910 INFO L226 Difference]: Without dead ends: 365 [2022-03-17 23:30:13,910 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:13,911 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 142 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:13,911 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:30:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-03-17 23:30:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 258. [2022-03-17 23:30:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5019762845849802) internal successors, (380), 253 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:13,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 384 transitions. [2022-03-17 23:30:13,916 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 384 transitions. Word has length 84 [2022-03-17 23:30:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:13,916 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 384 transitions. [2022-03-17 23:30:13,916 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 384 transitions. [2022-03-17 23:30:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 23:30:13,917 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:13,917 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:13,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:30:13,917 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:13,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1950647226, now seen corresponding path program 1 times [2022-03-17 23:30:13,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:13,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123925208] [2022-03-17 23:30:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:13,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:13,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:30:13,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:13,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123925208] [2022-03-17 23:30:14,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123925208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:14,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:14,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:14,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604512211] [2022-03-17 23:30:14,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:14,000 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:14,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:14,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:14,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:14,001 INFO L87 Difference]: Start difference. First operand 258 states and 384 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:16,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:16,378 INFO L93 Difference]: Finished difference Result 507 states and 760 transitions. [2022-03-17 23:30:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-17 23:30:16,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:16,380 INFO L225 Difference]: With dead ends: 507 [2022-03-17 23:30:16,380 INFO L226 Difference]: Without dead ends: 275 [2022-03-17 23:30:16,381 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:16,381 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 33 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:16,381 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 511 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:30:16,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-17 23:30:16,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 258. [2022-03-17 23:30:16,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4980237154150198) internal successors, (379), 253 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 383 transitions. [2022-03-17 23:30:16,386 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 383 transitions. Word has length 85 [2022-03-17 23:30:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:16,386 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 383 transitions. [2022-03-17 23:30:16,386 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:16,386 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 383 transitions. [2022-03-17 23:30:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-17 23:30:16,387 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:16,387 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:16,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:30:16,387 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:16,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1133478069, now seen corresponding path program 1 times [2022-03-17 23:30:16,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:16,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175556914] [2022-03-17 23:30:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:16,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:30:16,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:16,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175556914] [2022-03-17 23:30:16,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175556914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:16,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:16,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:16,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757517892] [2022-03-17 23:30:16,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:16,487 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:16,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:16,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:16,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:16,488 INFO L87 Difference]: Start difference. First operand 258 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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) [2022-03-17 23:30:18,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:18,930 INFO L93 Difference]: Finished difference Result 597 states and 897 transitions. [2022-03-17 23:30:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:18,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 89 [2022-03-17 23:30:18,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:18,932 INFO L225 Difference]: With dead ends: 597 [2022-03-17 23:30:18,932 INFO L226 Difference]: Without dead ends: 365 [2022-03-17 23:30:18,932 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:18,932 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 115 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:18,933 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 364 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:30:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-03-17 23:30:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 280. [2022-03-17 23:30:18,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5345454545454544) internal successors, (422), 275 states have internal predecessors, (422), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 426 transitions. [2022-03-17 23:30:18,937 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 426 transitions. Word has length 89 [2022-03-17 23:30:18,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:18,938 INFO L478 AbstractCegarLoop]: Abstraction has 280 states and 426 transitions. [2022-03-17 23:30:18,938 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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) [2022-03-17 23:30:18,938 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 426 transitions. [2022-03-17 23:30:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 23:30:18,939 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:18,939 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:18,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:30:18,939 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:18,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:18,939 INFO L85 PathProgramCache]: Analyzing trace with hash -442897010, now seen corresponding path program 1 times [2022-03-17 23:30:18,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:18,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633595542] [2022-03-17 23:30:18,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:18,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:30:19,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:19,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633595542] [2022-03-17 23:30:19,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633595542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:19,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:19,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:19,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760720506] [2022-03-17 23:30:19,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:19,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:19,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:19,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:19,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:19,026 INFO L87 Difference]: Start difference. First operand 280 states and 426 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:21,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:22,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:24,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:24,969 INFO L93 Difference]: Finished difference Result 637 states and 974 transitions. [2022-03-17 23:30:24,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:24,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 117 [2022-03-17 23:30:24,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:24,971 INFO L225 Difference]: With dead ends: 637 [2022-03-17 23:30:24,971 INFO L226 Difference]: Without dead ends: 383 [2022-03-17 23:30:24,972 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:24,972 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 86 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:24,972 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 505 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:30:24,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-17 23:30:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 314. [2022-03-17 23:30:24,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5404530744336569) internal successors, (476), 309 states have internal predecessors, (476), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:24,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 480 transitions. [2022-03-17 23:30:24,978 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 480 transitions. Word has length 117 [2022-03-17 23:30:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:24,978 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 480 transitions. [2022-03-17 23:30:24,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:24,978 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 480 transitions. [2022-03-17 23:30:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 23:30:24,979 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:24,979 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:24,979 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:30:24,979 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:24,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:24,979 INFO L85 PathProgramCache]: Analyzing trace with hash -689210097, now seen corresponding path program 1 times [2022-03-17 23:30:24,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:24,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134184315] [2022-03-17 23:30:24,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:24,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:25,154 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 23:30:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134184315] [2022-03-17 23:30:25,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134184315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:25,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:25,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:25,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584513903] [2022-03-17 23:30:25,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:25,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:25,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:25,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:25,156 INFO L87 Difference]: Start difference. First operand 314 states and 480 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:27,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:29,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:31,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:33,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:33,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:33,575 INFO L93 Difference]: Finished difference Result 657 states and 1007 transitions. [2022-03-17 23:30:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:33,575 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 117 [2022-03-17 23:30:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:33,577 INFO L225 Difference]: With dead ends: 657 [2022-03-17 23:30:33,577 INFO L226 Difference]: Without dead ends: 369 [2022-03-17 23:30:33,577 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:33,578 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:33,578 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 599 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 456 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-17 23:30:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-03-17 23:30:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 338. [2022-03-17 23:30:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5375375375375375) internal successors, (512), 333 states have internal predecessors, (512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:33,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 516 transitions. [2022-03-17 23:30:33,583 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 516 transitions. Word has length 117 [2022-03-17 23:30:33,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:33,583 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 516 transitions. [2022-03-17 23:30:33,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:33,584 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 516 transitions. [2022-03-17 23:30:33,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 23:30:33,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:33,585 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:33,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:30:33,585 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:33,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:33,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1156244222, now seen corresponding path program 1 times [2022-03-17 23:30:33,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:33,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187616263] [2022-03-17 23:30:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:33,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:33,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 23:30:33,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:33,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187616263] [2022-03-17 23:30:33,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187616263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:33,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:33,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:33,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525432794] [2022-03-17 23:30:33,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:33,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:33,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:33,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:33,671 INFO L87 Difference]: Start difference. First operand 338 states and 516 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) [2022-03-17 23:30:36,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:38,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:38,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:38,451 INFO L93 Difference]: Finished difference Result 725 states and 1107 transitions. [2022-03-17 23:30:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:38,451 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 122 [2022-03-17 23:30:38,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:38,453 INFO L225 Difference]: With dead ends: 725 [2022-03-17 23:30:38,453 INFO L226 Difference]: Without dead ends: 413 [2022-03-17 23:30:38,453 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:38,454 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 143 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:38,454 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:30:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-03-17 23:30:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 338. [2022-03-17 23:30:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5195195195195195) internal successors, (506), 333 states have internal predecessors, (506), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 510 transitions. [2022-03-17 23:30:38,460 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 510 transitions. Word has length 122 [2022-03-17 23:30:38,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:38,461 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 510 transitions. [2022-03-17 23:30:38,461 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) [2022-03-17 23:30:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 510 transitions. [2022-03-17 23:30:38,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 23:30:38,462 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:38,462 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:38,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:30:38,462 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:38,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:38,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1770598714, now seen corresponding path program 1 times [2022-03-17 23:30:38,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:38,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588284113] [2022-03-17 23:30:38,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:38,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:30:38,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:38,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588284113] [2022-03-17 23:30:38,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588284113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:38,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:38,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:38,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169813191] [2022-03-17 23:30:38,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:38,569 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:38,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:38,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:38,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:38,569 INFO L87 Difference]: Start difference. First operand 338 states and 510 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:42,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:44,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:44,460 INFO L93 Difference]: Finished difference Result 765 states and 1161 transitions. [2022-03-17 23:30:44,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:44,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 23:30:44,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:44,462 INFO L225 Difference]: With dead ends: 765 [2022-03-17 23:30:44,462 INFO L226 Difference]: Without dead ends: 453 [2022-03-17 23:30:44,463 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:44,463 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 116 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:44,463 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:30:44,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-03-17 23:30:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 375. [2022-03-17 23:30:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.5297297297297296) internal successors, (566), 370 states have internal predecessors, (566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:44,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 570 transitions. [2022-03-17 23:30:44,469 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 570 transitions. Word has length 122 [2022-03-17 23:30:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:44,470 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 570 transitions. [2022-03-17 23:30:44,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:44,470 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 570 transitions. [2022-03-17 23:30:44,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:30:44,471 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:44,471 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:44,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:30:44,473 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:44,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:44,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1281634973, now seen corresponding path program 1 times [2022-03-17 23:30:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:44,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886061774] [2022-03-17 23:30:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:44,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:44,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:30:44,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:44,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886061774] [2022-03-17 23:30:44,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886061774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:44,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:44,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683071661] [2022-03-17 23:30:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:44,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:44,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:44,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:44,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:44,565 INFO L87 Difference]: Start difference. First operand 375 states and 570 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:46,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:47,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:47,016 INFO L93 Difference]: Finished difference Result 781 states and 1192 transitions. [2022-03-17 23:30:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:47,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:30:47,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:47,018 INFO L225 Difference]: With dead ends: 781 [2022-03-17 23:30:47,018 INFO L226 Difference]: Without dead ends: 432 [2022-03-17 23:30:47,018 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:47,019 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 76 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:47,019 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 477 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:30:47,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-03-17 23:30:47,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 381. [2022-03-17 23:30:47,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 376 states have (on average 1.5319148936170213) internal successors, (576), 376 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 580 transitions. [2022-03-17 23:30:47,027 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 580 transitions. Word has length 123 [2022-03-17 23:30:47,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:47,027 INFO L478 AbstractCegarLoop]: Abstraction has 381 states and 580 transitions. [2022-03-17 23:30:47,027 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 580 transitions. [2022-03-17 23:30:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:30:47,028 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:47,028 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:47,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:30:47,029 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:47,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:47,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1587884536, now seen corresponding path program 1 times [2022-03-17 23:30:47,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:47,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376549290] [2022-03-17 23:30:47,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:47,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:47,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:30:47,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:47,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376549290] [2022-03-17 23:30:47,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376549290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:47,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:47,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:47,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2404627] [2022-03-17 23:30:47,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:47,133 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:47,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:47,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:47,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:47,134 INFO L87 Difference]: Start difference. First operand 381 states and 580 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:48,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:49,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:51,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:53,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:53,858 INFO L93 Difference]: Finished difference Result 851 states and 1300 transitions. [2022-03-17 23:30:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:30:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:53,860 INFO L225 Difference]: With dead ends: 851 [2022-03-17 23:30:53,860 INFO L226 Difference]: Without dead ends: 496 [2022-03-17 23:30:53,860 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:30:53,861 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 109 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:53,861 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 347 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 23:30:53,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-03-17 23:30:53,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 424. [2022-03-17 23:30:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 419 states have (on average 1.541766109785203) internal successors, (646), 419 states have internal predecessors, (646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 650 transitions. [2022-03-17 23:30:53,867 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 650 transitions. Word has length 131 [2022-03-17 23:30:53,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:53,868 INFO L478 AbstractCegarLoop]: Abstraction has 424 states and 650 transitions. [2022-03-17 23:30:53,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 650 transitions. [2022-03-17 23:30:53,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:30:53,869 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:53,869 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:53,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:30:53,869 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:53,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1911979455, now seen corresponding path program 1 times [2022-03-17 23:30:53,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:53,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959066956] [2022-03-17 23:30:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:53,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:30:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:53,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959066956] [2022-03-17 23:30:53,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959066956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:53,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:53,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:53,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231968619] [2022-03-17 23:30:53,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:53,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:53,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:53,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:53,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:53,955 INFO L87 Difference]: Start difference. First operand 424 states and 650 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:55,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:57,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:59,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:00,014 INFO L93 Difference]: Finished difference Result 865 states and 1328 transitions. [2022-03-17 23:31:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:00,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:31:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:00,016 INFO L225 Difference]: With dead ends: 865 [2022-03-17 23:31:00,016 INFO L226 Difference]: Without dead ends: 467 [2022-03-17 23:31:00,017 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:00,017 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 60 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:00,017 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 483 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:31:00,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-17 23:31:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 427. [2022-03-17 23:31:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.537914691943128) internal successors, (649), 422 states have internal predecessors, (649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:00,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 653 transitions. [2022-03-17 23:31:00,023 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 653 transitions. Word has length 132 [2022-03-17 23:31:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:00,023 INFO L478 AbstractCegarLoop]: Abstraction has 427 states and 653 transitions. [2022-03-17 23:31:00,023 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 653 transitions. [2022-03-17 23:31:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-17 23:31:00,024 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:00,024 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:00,025 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:31:00,025 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1644272000, now seen corresponding path program 1 times [2022-03-17 23:31:00,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:00,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306707832] [2022-03-17 23:31:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:00,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:00,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306707832] [2022-03-17 23:31:00,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306707832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:00,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:00,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:00,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281879924] [2022-03-17 23:31:00,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:00,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:00,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:00,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:00,136 INFO L87 Difference]: Start difference. First operand 427 states and 653 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:01,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:03,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:05,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:07,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:07,839 INFO L93 Difference]: Finished difference Result 858 states and 1317 transitions. [2022-03-17 23:31:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:07,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-03-17 23:31:07,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:07,841 INFO L225 Difference]: With dead ends: 858 [2022-03-17 23:31:07,841 INFO L226 Difference]: Without dead ends: 457 [2022-03-17 23:31:07,842 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:07,842 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 78 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:07,842 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 497 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 479 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:31:07,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-03-17 23:31:07,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 427. [2022-03-17 23:31:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.5355450236966826) internal successors, (648), 422 states have internal predecessors, (648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 652 transitions. [2022-03-17 23:31:07,848 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 652 transitions. Word has length 135 [2022-03-17 23:31:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:07,848 INFO L478 AbstractCegarLoop]: Abstraction has 427 states and 652 transitions. [2022-03-17 23:31:07,848 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 652 transitions. [2022-03-17 23:31:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-17 23:31:07,849 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:07,849 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:07,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:31:07,850 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:07,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:07,850 INFO L85 PathProgramCache]: Analyzing trace with hash 210073537, now seen corresponding path program 1 times [2022-03-17 23:31:07,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:07,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887260623] [2022-03-17 23:31:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:07,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:07,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887260623] [2022-03-17 23:31:07,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887260623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:07,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:07,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:07,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696884478] [2022-03-17 23:31:07,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:07,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:07,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:07,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:07,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:07,978 INFO L87 Difference]: Start difference. First operand 427 states and 652 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:09,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:11,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:13,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:14,948 INFO L93 Difference]: Finished difference Result 893 states and 1366 transitions. [2022-03-17 23:31:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-03-17 23:31:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:14,949 INFO L225 Difference]: With dead ends: 893 [2022-03-17 23:31:14,949 INFO L226 Difference]: Without dead ends: 492 [2022-03-17 23:31:14,950 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:14,951 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 131 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:14,951 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:31:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-03-17 23:31:14,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 427. [2022-03-17 23:31:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.5213270142180095) internal successors, (642), 422 states have internal predecessors, (642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 646 transitions. [2022-03-17 23:31:14,957 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 646 transitions. Word has length 135 [2022-03-17 23:31:14,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:14,957 INFO L478 AbstractCegarLoop]: Abstraction has 427 states and 646 transitions. [2022-03-17 23:31:14,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 646 transitions. [2022-03-17 23:31:14,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-17 23:31:14,958 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:14,958 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:14,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:31:14,958 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:14,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:14,959 INFO L85 PathProgramCache]: Analyzing trace with hash 361584944, now seen corresponding path program 1 times [2022-03-17 23:31:14,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:14,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124853707] [2022-03-17 23:31:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:14,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:15,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:15,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124853707] [2022-03-17 23:31:15,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124853707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:15,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:15,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:15,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731282794] [2022-03-17 23:31:15,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:15,048 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:15,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:15,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:15,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:15,049 INFO L87 Difference]: Start difference. First operand 427 states and 646 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) [2022-03-17 23:31:17,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:19,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:19,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:19,701 INFO L93 Difference]: Finished difference Result 893 states and 1354 transitions. [2022-03-17 23:31:19,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:19,702 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 139 [2022-03-17 23:31:19,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:19,703 INFO L225 Difference]: With dead ends: 893 [2022-03-17 23:31:19,703 INFO L226 Difference]: Without dead ends: 492 [2022-03-17 23:31:19,704 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:19,704 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 121 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:19,704 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 396 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 23:31:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-03-17 23:31:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 427. [2022-03-17 23:31:19,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.509478672985782) internal successors, (637), 422 states have internal predecessors, (637), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 641 transitions. [2022-03-17 23:31:19,710 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 641 transitions. Word has length 139 [2022-03-17 23:31:19,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:19,710 INFO L478 AbstractCegarLoop]: Abstraction has 427 states and 641 transitions. [2022-03-17 23:31:19,710 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) [2022-03-17 23:31:19,710 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 641 transitions. [2022-03-17 23:31:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-17 23:31:19,723 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:19,723 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:19,723 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:31:19,724 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:19,724 INFO L85 PathProgramCache]: Analyzing trace with hash -608706063, now seen corresponding path program 1 times [2022-03-17 23:31:19,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:19,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391934816] [2022-03-17 23:31:19,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:19,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 23:31:19,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:19,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391934816] [2022-03-17 23:31:19,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391934816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:19,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:19,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314349707] [2022-03-17 23:31:19,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:19,862 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:19,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:19,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:19,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:19,863 INFO L87 Difference]: Start difference. First operand 427 states and 641 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:21,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:22,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:22,245 INFO L93 Difference]: Finished difference Result 867 states and 1308 transitions. [2022-03-17 23:31:22,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:22,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-17 23:31:22,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:22,247 INFO L225 Difference]: With dead ends: 867 [2022-03-17 23:31:22,247 INFO L226 Difference]: Without dead ends: 466 [2022-03-17 23:31:22,247 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:22,248 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 27 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:22,248 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 585 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 436 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:31:22,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-17 23:31:22,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 453. [2022-03-17 23:31:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5044642857142858) internal successors, (674), 448 states have internal predecessors, (674), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 678 transitions. [2022-03-17 23:31:22,254 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 678 transitions. Word has length 139 [2022-03-17 23:31:22,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:22,254 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 678 transitions. [2022-03-17 23:31:22,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:22,255 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 678 transitions. [2022-03-17 23:31:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-17 23:31:22,255 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:22,256 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:22,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:31:22,256 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:22,256 INFO L85 PathProgramCache]: Analyzing trace with hash -785474316, now seen corresponding path program 1 times [2022-03-17 23:31:22,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:22,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110921379] [2022-03-17 23:31:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:22,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:22,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:22,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110921379] [2022-03-17 23:31:22,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110921379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:22,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:22,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:22,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104288135] [2022-03-17 23:31:22,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:22,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:22,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:22,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:22,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:22,349 INFO L87 Difference]: Start difference. First operand 453 states and 678 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:24,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:26,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:28,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:29,381 INFO L93 Difference]: Finished difference Result 910 states and 1367 transitions. [2022-03-17 23:31:29,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-03-17 23:31:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:29,383 INFO L225 Difference]: With dead ends: 910 [2022-03-17 23:31:29,383 INFO L226 Difference]: Without dead ends: 483 [2022-03-17 23:31:29,384 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:29,385 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 63 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:29,385 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 509 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:31:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-03-17 23:31:29,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 453. [2022-03-17 23:31:29,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5022321428571428) internal successors, (673), 448 states have internal predecessors, (673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:29,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 677 transitions. [2022-03-17 23:31:29,391 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 677 transitions. Word has length 142 [2022-03-17 23:31:29,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:29,391 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 677 transitions. [2022-03-17 23:31:29,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 677 transitions. [2022-03-17 23:31:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-17 23:31:29,392 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:29,392 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:29,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:31:29,392 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:29,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1247350556, now seen corresponding path program 1 times [2022-03-17 23:31:29,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:29,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424028619] [2022-03-17 23:31:29,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:29,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:29,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:29,494 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:29,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:29,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424028619] [2022-03-17 23:31:29,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424028619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:29,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:29,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:29,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929016202] [2022-03-17 23:31:29,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:29,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:29,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:29,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:29,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:29,497 INFO L87 Difference]: Start difference. First operand 453 states and 677 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:30,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:32,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:34,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:36,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:37,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:37,086 INFO L93 Difference]: Finished difference Result 945 states and 1416 transitions. [2022-03-17 23:31:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:37,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 143 [2022-03-17 23:31:37,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:37,088 INFO L225 Difference]: With dead ends: 945 [2022-03-17 23:31:37,088 INFO L226 Difference]: Without dead ends: 518 [2022-03-17 23:31:37,088 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:37,089 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 116 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:37,089 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 469 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 23:31:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-17 23:31:37,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 453. [2022-03-17 23:31:37,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4910714285714286) internal successors, (668), 448 states have internal predecessors, (668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 672 transitions. [2022-03-17 23:31:37,112 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 672 transitions. Word has length 143 [2022-03-17 23:31:37,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:37,112 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 672 transitions. [2022-03-17 23:31:37,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:37,112 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 672 transitions. [2022-03-17 23:31:37,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 23:31:37,113 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:37,113 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:37,113 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:31:37,113 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:37,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:37,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2078608695, now seen corresponding path program 1 times [2022-03-17 23:31:37,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:37,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185859284] [2022-03-17 23:31:37,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:37,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:37,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:37,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185859284] [2022-03-17 23:31:37,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185859284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:37,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:37,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:37,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218993184] [2022-03-17 23:31:37,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:37,199 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:37,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:37,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:37,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:37,199 INFO L87 Difference]: Start difference. First operand 453 states and 672 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:39,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:39,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:39,597 INFO L93 Difference]: Finished difference Result 902 states and 1342 transitions. [2022-03-17 23:31:39,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:39,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 23:31:39,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:39,599 INFO L225 Difference]: With dead ends: 902 [2022-03-17 23:31:39,599 INFO L226 Difference]: Without dead ends: 475 [2022-03-17 23:31:39,600 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:39,600 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 50 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:39,600 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 527 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:31:39,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-17 23:31:39,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 453. [2022-03-17 23:31:39,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4888392857142858) internal successors, (667), 448 states have internal predecessors, (667), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 671 transitions. [2022-03-17 23:31:39,606 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 671 transitions. Word has length 144 [2022-03-17 23:31:39,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:39,607 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 671 transitions. [2022-03-17 23:31:39,607 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:39,607 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 671 transitions. [2022-03-17 23:31:39,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:31:39,608 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:39,608 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:39,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:31:39,608 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:39,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:39,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1648187205, now seen corresponding path program 1 times [2022-03-17 23:31:39,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:39,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835061805] [2022-03-17 23:31:39,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:39,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:39,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835061805] [2022-03-17 23:31:39,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835061805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:39,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:39,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:39,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025401310] [2022-03-17 23:31:39,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:39,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:39,695 INFO L87 Difference]: Start difference. First operand 453 states and 671 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:43,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:43,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:43,797 INFO L93 Difference]: Finished difference Result 902 states and 1340 transitions. [2022-03-17 23:31:43,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:43,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 23:31:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:43,798 INFO L225 Difference]: With dead ends: 902 [2022-03-17 23:31:43,798 INFO L226 Difference]: Without dead ends: 475 [2022-03-17 23:31:43,799 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:43,799 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 53 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:43,799 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 527 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 23:31:43,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-17 23:31:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 453. [2022-03-17 23:31:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4866071428571428) internal successors, (666), 448 states have internal predecessors, (666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 670 transitions. [2022-03-17 23:31:43,805 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 670 transitions. Word has length 145 [2022-03-17 23:31:43,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:43,805 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 670 transitions. [2022-03-17 23:31:43,806 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 670 transitions. [2022-03-17 23:31:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:31:43,806 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:43,806 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:43,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:31:43,807 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:43,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1171735351, now seen corresponding path program 1 times [2022-03-17 23:31:43,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:43,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130223014] [2022-03-17 23:31:43,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:43,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:43,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:43,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:43,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130223014] [2022-03-17 23:31:43,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130223014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:43,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:43,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:43,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905600189] [2022-03-17 23:31:43,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:43,908 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:43,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:43,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:43,908 INFO L87 Difference]: Start difference. First operand 453 states and 670 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:45,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:46,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:46,353 INFO L93 Difference]: Finished difference Result 945 states and 1402 transitions. [2022-03-17 23:31:46,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:46,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 23:31:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:46,354 INFO L225 Difference]: With dead ends: 945 [2022-03-17 23:31:46,354 INFO L226 Difference]: Without dead ends: 518 [2022-03-17 23:31:46,355 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:46,355 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 113 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:46,356 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 386 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:31:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-17 23:31:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 453. [2022-03-17 23:31:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4754464285714286) internal successors, (661), 448 states have internal predecessors, (661), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 665 transitions. [2022-03-17 23:31:46,361 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 665 transitions. Word has length 145 [2022-03-17 23:31:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:46,362 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 665 transitions. [2022-03-17 23:31:46,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 665 transitions. [2022-03-17 23:31:46,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:31:46,363 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:46,363 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:46,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:31:46,364 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1719602763, now seen corresponding path program 1 times [2022-03-17 23:31:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:46,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773037215] [2022-03-17 23:31:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:46,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:46,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:46,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773037215] [2022-03-17 23:31:46,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773037215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:46,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:46,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:46,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463228083] [2022-03-17 23:31:46,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:46,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:46,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:46,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:46,464 INFO L87 Difference]: Start difference. First operand 453 states and 665 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:48,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:50,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:52,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:54,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:54,689 INFO L93 Difference]: Finished difference Result 945 states and 1392 transitions. [2022-03-17 23:31:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:54,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:31:54,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:54,691 INFO L225 Difference]: With dead ends: 945 [2022-03-17 23:31:54,691 INFO L226 Difference]: Without dead ends: 518 [2022-03-17 23:31:54,692 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:54,692 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 116 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:54,692 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 469 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-17 23:31:54,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-17 23:31:54,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 453. [2022-03-17 23:31:54,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4642857142857142) internal successors, (656), 448 states have internal predecessors, (656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:54,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 660 transitions. [2022-03-17 23:31:54,698 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 660 transitions. Word has length 146 [2022-03-17 23:31:54,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:54,698 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 660 transitions. [2022-03-17 23:31:54,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:54,698 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 660 transitions. [2022-03-17 23:31:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 23:31:54,700 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:54,700 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:54,700 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:31:54,700 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:54,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1178364217, now seen corresponding path program 1 times [2022-03-17 23:31:54,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:54,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536057721] [2022-03-17 23:31:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:54,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:31:54,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:54,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536057721] [2022-03-17 23:31:54,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536057721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:54,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:54,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:54,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460482916] [2022-03-17 23:31:54,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:54,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:54,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:54,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:54,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:54,808 INFO L87 Difference]: Start difference. First operand 453 states and 660 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:56,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:58,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:59,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:00,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:01,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:01,284 INFO L93 Difference]: Finished difference Result 898 states and 1313 transitions. [2022-03-17 23:32:01,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:01,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 23:32:01,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:01,286 INFO L225 Difference]: With dead ends: 898 [2022-03-17 23:32:01,286 INFO L226 Difference]: Without dead ends: 471 [2022-03-17 23:32:01,286 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:01,287 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 41 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:01,287 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 535 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:32:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-03-17 23:32:01,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 453. [2022-03-17 23:32:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4620535714285714) internal successors, (655), 448 states have internal predecessors, (655), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:01,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 659 transitions. [2022-03-17 23:32:01,293 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 659 transitions. Word has length 148 [2022-03-17 23:32:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:01,293 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 659 transitions. [2022-03-17 23:32:01,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:01,293 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 659 transitions. [2022-03-17 23:32:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 23:32:01,294 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:01,294 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:01,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:32:01,294 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:01,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:01,294 INFO L85 PathProgramCache]: Analyzing trace with hash 476237652, now seen corresponding path program 1 times [2022-03-17 23:32:01,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:01,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658282675] [2022-03-17 23:32:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:01,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:01,383 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:32:01,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:01,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658282675] [2022-03-17 23:32:01,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658282675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:01,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:01,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:01,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837514181] [2022-03-17 23:32:01,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:01,384 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:01,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:01,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:01,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:01,384 INFO L87 Difference]: Start difference. First operand 453 states and 659 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:03,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:06,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:07,192 INFO L93 Difference]: Finished difference Result 945 states and 1380 transitions. [2022-03-17 23:32:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:07,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 23:32:07,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:07,194 INFO L225 Difference]: With dead ends: 945 [2022-03-17 23:32:07,194 INFO L226 Difference]: Without dead ends: 518 [2022-03-17 23:32:07,195 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:07,195 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 108 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:07,195 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:32:07,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-17 23:32:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 453. [2022-03-17 23:32:07,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4508928571428572) internal successors, (650), 448 states have internal predecessors, (650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:07,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 654 transitions. [2022-03-17 23:32:07,202 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 654 transitions. Word has length 149 [2022-03-17 23:32:07,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:07,202 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 654 transitions. [2022-03-17 23:32:07,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:07,202 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 654 transitions. [2022-03-17 23:32:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 23:32:07,203 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:07,203 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:07,203 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:32:07,203 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:07,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2082256811, now seen corresponding path program 1 times [2022-03-17 23:32:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:07,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735190088] [2022-03-17 23:32:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:32:07,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:07,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735190088] [2022-03-17 23:32:07,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735190088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:07,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:07,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:07,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120270800] [2022-03-17 23:32:07,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:07,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:07,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:07,337 INFO L87 Difference]: Start difference. First operand 453 states and 654 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:10,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:12,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:12,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:12,880 INFO L93 Difference]: Finished difference Result 894 states and 1296 transitions. [2022-03-17 23:32:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:12,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 23:32:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:12,881 INFO L225 Difference]: With dead ends: 894 [2022-03-17 23:32:12,881 INFO L226 Difference]: Without dead ends: 467 [2022-03-17 23:32:12,882 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:12,882 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 34 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:12,882 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 539 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:32:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-17 23:32:12,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 453. [2022-03-17 23:32:12,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4486607142857142) internal successors, (649), 448 states have internal predecessors, (649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 653 transitions. [2022-03-17 23:32:12,888 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 653 transitions. Word has length 149 [2022-03-17 23:32:12,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:12,888 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 653 transitions. [2022-03-17 23:32:12,888 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:12,889 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 653 transitions. [2022-03-17 23:32:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 23:32:12,889 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:12,889 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:12,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:32:12,890 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash 306402129, now seen corresponding path program 1 times [2022-03-17 23:32:12,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:12,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763521089] [2022-03-17 23:32:12,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:12,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:32:12,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:12,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763521089] [2022-03-17 23:32:12,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763521089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:12,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:12,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:12,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237288488] [2022-03-17 23:32:12,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:12,982 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:12,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:12,982 INFO L87 Difference]: Start difference. First operand 453 states and 653 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:14,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:15,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:15,455 INFO L93 Difference]: Finished difference Result 945 states and 1368 transitions. [2022-03-17 23:32:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:15,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 23:32:15,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:15,456 INFO L225 Difference]: With dead ends: 945 [2022-03-17 23:32:15,456 INFO L226 Difference]: Without dead ends: 518 [2022-03-17 23:32:15,457 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:15,457 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 105 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:15,457 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 388 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 23:32:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-17 23:32:15,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 453. [2022-03-17 23:32:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4375) internal successors, (644), 448 states have internal predecessors, (644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 648 transitions. [2022-03-17 23:32:15,463 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 648 transitions. Word has length 150 [2022-03-17 23:32:15,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:15,463 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 648 transitions. [2022-03-17 23:32:15,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 648 transitions. [2022-03-17 23:32:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-17 23:32:15,464 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:15,464 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:15,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:32:15,465 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash -397533602, now seen corresponding path program 1 times [2022-03-17 23:32:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:15,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67202760] [2022-03-17 23:32:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:32:15,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:15,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67202760] [2022-03-17 23:32:15,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67202760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:15,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:15,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:15,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024029274] [2022-03-17 23:32:15,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:15,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:15,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:15,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:15,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:15,555 INFO L87 Difference]: Start difference. First operand 453 states and 648 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:17,208 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 [] [2022-03-17 23:32:18,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:19,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:21,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:22,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:22,414 INFO L93 Difference]: Finished difference Result 1024 states and 1475 transitions. [2022-03-17 23:32:22,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:22,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-17 23:32:22,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:22,416 INFO L225 Difference]: With dead ends: 1024 [2022-03-17 23:32:22,417 INFO L226 Difference]: Without dead ends: 597 [2022-03-17 23:32:22,417 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:22,417 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 106 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:22,418 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 378 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:32:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-17 23:32:22,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 517. [2022-03-17 23:32:22,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.43359375) internal successors, (734), 512 states have internal predecessors, (734), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:22,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 738 transitions. [2022-03-17 23:32:22,425 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 738 transitions. Word has length 158 [2022-03-17 23:32:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:22,425 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 738 transitions. [2022-03-17 23:32:22,425 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 738 transitions. [2022-03-17 23:32:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-17 23:32:22,426 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:22,426 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:22,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:32:22,426 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:22,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:22,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1639676051, now seen corresponding path program 1 times [2022-03-17 23:32:22,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:22,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184531395] [2022-03-17 23:32:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:32:22,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:22,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184531395] [2022-03-17 23:32:22,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184531395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:22,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:22,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498625477] [2022-03-17 23:32:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:22,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:22,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:22,523 INFO L87 Difference]: Start difference. First operand 517 states and 738 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:25,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:27,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:28,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:28,147 INFO L93 Difference]: Finished difference Result 1073 states and 1538 transitions. [2022-03-17 23:32:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:28,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-17 23:32:28,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:28,149 INFO L225 Difference]: With dead ends: 1073 [2022-03-17 23:32:28,149 INFO L226 Difference]: Without dead ends: 582 [2022-03-17 23:32:28,149 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:28,150 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 101 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:28,150 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:32:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-03-17 23:32:28,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 517. [2022-03-17 23:32:28,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.427734375) internal successors, (731), 512 states have internal predecessors, (731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:28,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 735 transitions. [2022-03-17 23:32:28,157 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 735 transitions. Word has length 164 [2022-03-17 23:32:28,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:28,157 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 735 transitions. [2022-03-17 23:32:28,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:28,158 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 735 transitions. [2022-03-17 23:32:28,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 23:32:28,158 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:28,159 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:28,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:32:28,159 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:28,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:28,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1131694392, now seen corresponding path program 1 times [2022-03-17 23:32:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:28,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929895559] [2022-03-17 23:32:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:28,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:28,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 23:32:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:28,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929895559] [2022-03-17 23:32:28,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929895559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:28,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:28,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:28,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987841142] [2022-03-17 23:32:28,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:28,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:28,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:28,251 INFO L87 Difference]: Start difference. First operand 517 states and 735 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:29,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:31,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:32,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:33,283 INFO L93 Difference]: Finished difference Result 1492 states and 2137 transitions. [2022-03-17 23:32:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:33,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 23:32:33,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:33,286 INFO L225 Difference]: With dead ends: 1492 [2022-03-17 23:32:33,286 INFO L226 Difference]: Without dead ends: 1001 [2022-03-17 23:32:33,287 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:33,287 INFO L912 BasicCegarLoop]: 376 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:33,287 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 570 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:32:33,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-03-17 23:32:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-03-17 23:32:33,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4246987951807228) internal successors, (1419), 996 states have internal predecessors, (1419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1423 transitions. [2022-03-17 23:32:33,300 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1423 transitions. Word has length 172 [2022-03-17 23:32:33,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:33,300 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1423 transitions. [2022-03-17 23:32:33,300 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:33,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1423 transitions. [2022-03-17 23:32:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 23:32:33,301 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:33,301 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:33,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:32:33,301 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:33,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:33,302 INFO L85 PathProgramCache]: Analyzing trace with hash 57013455, now seen corresponding path program 1 times [2022-03-17 23:32:33,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:33,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014741620] [2022-03-17 23:32:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:33,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:33,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:33,410 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:32:33,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:33,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014741620] [2022-03-17 23:32:33,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014741620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:33,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:33,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:33,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096639758] [2022-03-17 23:32:33,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:33,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:33,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:33,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:33,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:33,411 INFO L87 Difference]: Start difference. First operand 1001 states and 1423 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:34,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:35,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:36,657 INFO L93 Difference]: Finished difference Result 2425 states and 3460 transitions. [2022-03-17 23:32:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 23:32:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:36,661 INFO L225 Difference]: With dead ends: 2425 [2022-03-17 23:32:36,661 INFO L226 Difference]: Without dead ends: 1450 [2022-03-17 23:32:36,662 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:36,662 INFO L912 BasicCegarLoop]: 303 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:36,663 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 497 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 23:32:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-03-17 23:32:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1448. [2022-03-17 23:32:36,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1443 states have (on average 1.4234234234234233) internal successors, (2054), 1443 states have internal predecessors, (2054), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:36,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2058 transitions. [2022-03-17 23:32:36,681 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2058 transitions. Word has length 173 [2022-03-17 23:32:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:36,681 INFO L478 AbstractCegarLoop]: Abstraction has 1448 states and 2058 transitions. [2022-03-17 23:32:36,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:36,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2058 transitions. [2022-03-17 23:32:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:32:36,683 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:36,684 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:36,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:32:36,684 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash -25052704, now seen corresponding path program 1 times [2022-03-17 23:32:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:36,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620525132] [2022-03-17 23:32:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:36,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 23:32:36,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:36,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620525132] [2022-03-17 23:32:36,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620525132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:36,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:36,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:36,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603829083] [2022-03-17 23:32:36,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:36,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:36,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:36,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:36,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:36,770 INFO L87 Difference]: Start difference. First operand 1448 states and 2058 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:38,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:40,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:42,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:42,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:42,626 INFO L93 Difference]: Finished difference Result 3313 states and 4724 transitions. [2022-03-17 23:32:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:42,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 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 174 [2022-03-17 23:32:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:42,631 INFO L225 Difference]: With dead ends: 3313 [2022-03-17 23:32:42,631 INFO L226 Difference]: Without dead ends: 1891 [2022-03-17 23:32:42,632 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:42,633 INFO L912 BasicCegarLoop]: 325 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:42,633 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 519 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:32:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2022-03-17 23:32:42,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1886. [2022-03-17 23:32:42,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1881 states have (on average 1.4247740563530038) internal successors, (2680), 1881 states have internal predecessors, (2680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:42,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2684 transitions. [2022-03-17 23:32:42,656 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2684 transitions. Word has length 174 [2022-03-17 23:32:42,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:42,656 INFO L478 AbstractCegarLoop]: Abstraction has 1886 states and 2684 transitions. [2022-03-17 23:32:42,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:42,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2684 transitions. [2022-03-17 23:32:42,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:32:42,659 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:42,659 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:42,659 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:32:42,659 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:42,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:42,659 INFO L85 PathProgramCache]: Analyzing trace with hash -317438529, now seen corresponding path program 1 times [2022-03-17 23:32:42,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:42,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414956047] [2022-03-17 23:32:42,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:42,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:42,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-17 23:32:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:42,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414956047] [2022-03-17 23:32:42,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414956047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:42,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:42,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:42,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861190933] [2022-03-17 23:32:42,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:42,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:42,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:42,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:42,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:42,738 INFO L87 Difference]: Start difference. First operand 1886 states and 2684 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:44,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:45,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:45,009 INFO L93 Difference]: Finished difference Result 3773 states and 5375 transitions. [2022-03-17 23:32:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:45,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 23:32:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:45,014 INFO L225 Difference]: With dead ends: 3773 [2022-03-17 23:32:45,014 INFO L226 Difference]: Without dead ends: 1913 [2022-03-17 23:32:45,016 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:45,017 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:45,017 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 23:32:45,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2022-03-17 23:32:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1913. [2022-03-17 23:32:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1908 states have (on average 1.4229559748427674) internal successors, (2715), 1908 states have internal predecessors, (2715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2719 transitions. [2022-03-17 23:32:45,071 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2719 transitions. Word has length 174 [2022-03-17 23:32:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:45,072 INFO L478 AbstractCegarLoop]: Abstraction has 1913 states and 2719 transitions. [2022-03-17 23:32:45,072 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2719 transitions. [2022-03-17 23:32:45,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:32:45,074 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:45,074 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:45,074 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:32:45,074 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:45,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:45,075 INFO L85 PathProgramCache]: Analyzing trace with hash -449762274, now seen corresponding path program 1 times [2022-03-17 23:32:45,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:45,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154770025] [2022-03-17 23:32:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:45,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-17 23:32:45,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:45,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154770025] [2022-03-17 23:32:45,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154770025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:45,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:45,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:45,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650065726] [2022-03-17 23:32:45,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:45,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:45,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:45,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:45,155 INFO L87 Difference]: Start difference. First operand 1913 states and 2719 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:46,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:47,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:49,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:50,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:50,205 INFO L93 Difference]: Finished difference Result 3802 states and 5411 transitions. [2022-03-17 23:32:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:50,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 23:32:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:50,209 INFO L225 Difference]: With dead ends: 3802 [2022-03-17 23:32:50,209 INFO L226 Difference]: Without dead ends: 1915 [2022-03-17 23:32:50,211 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:50,212 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:50,212 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:32:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-03-17 23:32:50,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1915. [2022-03-17 23:32:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1910 states have (on average 1.4225130890052355) internal successors, (2717), 1910 states have internal predecessors, (2717), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2721 transitions. [2022-03-17 23:32:50,234 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2721 transitions. Word has length 174 [2022-03-17 23:32:50,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:50,234 INFO L478 AbstractCegarLoop]: Abstraction has 1915 states and 2721 transitions. [2022-03-17 23:32:50,234 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2721 transitions. [2022-03-17 23:32:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-03-17 23:32:50,236 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:50,236 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:50,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:32:50,237 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:50,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:50,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1890873770, now seen corresponding path program 1 times [2022-03-17 23:32:50,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:50,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623969855] [2022-03-17 23:32:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:50,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-17 23:32:50,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:50,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623969855] [2022-03-17 23:32:50,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623969855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:50,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:50,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:50,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141432505] [2022-03-17 23:32:50,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:50,371 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:50,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:50,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:50,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:50,371 INFO L87 Difference]: Start difference. First operand 1915 states and 2721 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:52,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:52,761 INFO L93 Difference]: Finished difference Result 3999 states and 5693 transitions. [2022-03-17 23:32:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:52,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 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 184 [2022-03-17 23:32:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:52,781 INFO L225 Difference]: With dead ends: 3999 [2022-03-17 23:32:52,781 INFO L226 Difference]: Without dead ends: 2112 [2022-03-17 23:32:52,784 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:52,807 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 37 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:52,807 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 595 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:32:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2022-03-17 23:32:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2027. [2022-03-17 23:32:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 2022 states have (on average 1.4228486646884273) internal successors, (2877), 2022 states have internal predecessors, (2877), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2881 transitions. [2022-03-17 23:32:52,850 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2881 transitions. Word has length 184 [2022-03-17 23:32:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:52,850 INFO L478 AbstractCegarLoop]: Abstraction has 2027 states and 2881 transitions. [2022-03-17 23:32:52,851 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2881 transitions. [2022-03-17 23:32:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-03-17 23:32:52,852 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:52,852 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:32:52,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:32:52,852 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:52,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:52,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1277083641, now seen corresponding path program 1 times [2022-03-17 23:32:52,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:52,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460266328] [2022-03-17 23:32:52,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:52,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:52,956 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 23:32:52,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:52,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460266328] [2022-03-17 23:32:52,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460266328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:52,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:52,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:52,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946465198] [2022-03-17 23:32:52,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:52,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:52,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:52,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:52,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:52,958 INFO L87 Difference]: Start difference. First operand 2027 states and 2881 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:57,385 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 [] [2022-03-17 23:32:57,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:57,848 INFO L93 Difference]: Finished difference Result 4137 states and 5883 transitions. [2022-03-17 23:32:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-03-17 23:32:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:57,855 INFO L225 Difference]: With dead ends: 4137 [2022-03-17 23:32:57,855 INFO L226 Difference]: Without dead ends: 2138 [2022-03-17 23:32:57,857 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:32:57,858 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 68 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:57,858 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 566 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 525 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:32:57,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2022-03-17 23:32:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2027. [2022-03-17 23:32:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 2022 states have (on average 1.4213649851632046) internal successors, (2874), 2022 states have internal predecessors, (2874), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:57,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2878 transitions. [2022-03-17 23:32:57,883 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2878 transitions. Word has length 185 [2022-03-17 23:32:57,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:57,883 INFO L478 AbstractCegarLoop]: Abstraction has 2027 states and 2878 transitions. [2022-03-17 23:32:57,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:57,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2878 transitions. [2022-03-17 23:32:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-17 23:32:57,885 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:57,885 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:32:57,885 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:32:57,885 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:57,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:57,886 INFO L85 PathProgramCache]: Analyzing trace with hash 20707135, now seen corresponding path program 1 times [2022-03-17 23:32:57,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:57,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248551964] [2022-03-17 23:32:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:57,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 23:32:57,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:57,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248551964] [2022-03-17 23:32:57,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248551964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:57,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:57,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:57,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587221536] [2022-03-17 23:32:57,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:57,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:57,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:57,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:57,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:57,981 INFO L87 Difference]: Start difference. First operand 2027 states and 2878 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:59,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:02,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:04,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:33:05,049 INFO L93 Difference]: Finished difference Result 4113 states and 5838 transitions. [2022-03-17 23:33:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:33:05,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-17 23:33:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:33:05,053 INFO L225 Difference]: With dead ends: 4113 [2022-03-17 23:33:05,053 INFO L226 Difference]: Without dead ends: 2114 [2022-03-17 23:33:05,055 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:33:05,055 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 60 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:33:05,055 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 584 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 506 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:33:05,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2022-03-17 23:33:05,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 2027. [2022-03-17 23:33:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 2022 states have (on average 1.4198813056379822) internal successors, (2871), 2022 states have internal predecessors, (2871), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2875 transitions. [2022-03-17 23:33:05,082 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2875 transitions. Word has length 188 [2022-03-17 23:33:05,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:33:05,082 INFO L478 AbstractCegarLoop]: Abstraction has 2027 states and 2875 transitions. [2022-03-17 23:33:05,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:05,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2875 transitions. [2022-03-17 23:33:05,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-17 23:33:05,084 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:33:05,084 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 23:33:05,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:33:05,085 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:33:05,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:33:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1813520391, now seen corresponding path program 1 times [2022-03-17 23:33:05,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:33:05,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257636646] [2022-03-17 23:33:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:05,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:33:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-17 23:33:05,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:05,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257636646] [2022-03-17 23:33:05,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257636646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:33:05,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:33:05,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:33:05,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487149918] [2022-03-17 23:33:05,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:33:05,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:33:05,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:33:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:33:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:33:05,189 INFO L87 Difference]: Start difference. First operand 2027 states and 2875 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:06,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:09,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:11,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:11,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:33:11,644 INFO L93 Difference]: Finished difference Result 4429 states and 6277 transitions. [2022-03-17 23:33:11,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:33:11,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-03-17 23:33:11,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:33:11,648 INFO L225 Difference]: With dead ends: 4429 [2022-03-17 23:33:11,648 INFO L226 Difference]: Without dead ends: 2430 [2022-03-17 23:33:11,650 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:33:11,650 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 102 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:33:11,650 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 374 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:33:11,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-03-17 23:33:11,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2167. [2022-03-17 23:33:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 2162 states have (on average 1.4153561517113784) internal successors, (3060), 2162 states have internal predecessors, (3060), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 3064 transitions. [2022-03-17 23:33:11,696 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 3064 transitions. Word has length 195 [2022-03-17 23:33:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:33:11,696 INFO L478 AbstractCegarLoop]: Abstraction has 2167 states and 3064 transitions. [2022-03-17 23:33:11,696 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:11,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 3064 transitions. [2022-03-17 23:33:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-17 23:33:11,698 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:33:11,698 INFO L500 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] [2022-03-17 23:33:11,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:33:11,698 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:33:11,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:33:11,698 INFO L85 PathProgramCache]: Analyzing trace with hash 763814783, now seen corresponding path program 1 times [2022-03-17 23:33:11,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:33:11,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947032654] [2022-03-17 23:33:11,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:33:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 23:33:12,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:12,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947032654] [2022-03-17 23:33:12,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947032654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:33:12,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:33:12,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 23:33:12,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172396696] [2022-03-17 23:33:12,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:33:12,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:33:12,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:33:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:33:12,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:33:12,065 INFO L87 Difference]: Start difference. First operand 2167 states and 3064 transitions. Second operand has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:13,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:15,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:17,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:19,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:21,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:21,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:33:21,718 INFO L93 Difference]: Finished difference Result 4327 states and 6120 transitions. [2022-03-17 23:33:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:33:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-17 23:33:21,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:33:21,722 INFO L225 Difference]: With dead ends: 4327 [2022-03-17 23:33:21,722 INFO L226 Difference]: Without dead ends: 2167 [2022-03-17 23:33:21,725 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:33:21,725 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:33:21,725 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-03-17 23:33:21,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2022-03-17 23:33:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 2167. [2022-03-17 23:33:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 2162 states have (on average 1.4148936170212767) internal successors, (3059), 2162 states have internal predecessors, (3059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 3063 transitions. [2022-03-17 23:33:21,752 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 3063 transitions. Word has length 197 [2022-03-17 23:33:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:33:21,752 INFO L478 AbstractCegarLoop]: Abstraction has 2167 states and 3063 transitions. [2022-03-17 23:33:21,753 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:21,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 3063 transitions. [2022-03-17 23:33:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-17 23:33:21,755 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:33:21,755 INFO L500 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] [2022-03-17 23:33:21,755 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:33:21,755 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:33:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:33:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2018596800, now seen corresponding path program 1 times [2022-03-17 23:33:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:33:21,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097804309] [2022-03-17 23:33:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:21,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:33:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:22,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 204 proven. 70 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-03-17 23:33:22,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:22,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097804309] [2022-03-17 23:33:22,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097804309] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:33:22,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063707289] [2022-03-17 23:33:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:22,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:33:22,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:33:22,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:33:22,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 23:33:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:23,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 149 conjunts are in the unsatisfiable core [2022-03-17 23:33:23,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:33:23,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:33:23,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5856 treesize of output 1282