/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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:22:44,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:22:44,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:22:44,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:22:44,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:22:44,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:22:44,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:22:44,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:22:44,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:22:44,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:22:44,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:22:44,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:22:44,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:22:44,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:22:44,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:22:44,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:22:44,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:22:44,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:22:44,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:22:44,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:22:44,549 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:22:44,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:22:44,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:22:44,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:22:44,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:22:44,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 21:22:44,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 21:22:44,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 21:22:44,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 21:22:44,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 21:22:44,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 21:22:44,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 21:22:44,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 21:22:44,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 21:22:44,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 21:22:44,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 21:22:44,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 21:22:44,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 21:22:44,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 21:22:44,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:22:44,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:22:44,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:22:44,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:22:44,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:22:44,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:22:44,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:22:44,573 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:22:44,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:22:44,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:22:44,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:22:44,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:22:44,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:22:44,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:22:44,574 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:22:44,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:22:44,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:22:44,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:22:44,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:22:44,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:22:44,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:22:44,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:22:44,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:22:44,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:22:44,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:22:44,576 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:22:44,576 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:22:44,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:22:44,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:22:44,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:22:44,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:22:44,795 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:22:44,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-18 21:22:44,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390926156/e4650a6e5e2f4907a617a27042683691/FLAG90b82d506 [2022-03-18 21:22:45,222 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:22:45,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-18 21:22:45,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390926156/e4650a6e5e2f4907a617a27042683691/FLAG90b82d506 [2022-03-18 21:22:45,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390926156/e4650a6e5e2f4907a617a27042683691 [2022-03-18 21:22:45,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:22:45,570 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:22:45,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:22:45,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:22:45,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:22:45,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:45,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28793b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45, skipping insertion in model container [2022-03-18 21:22:45,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:45,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:22:45,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:22:45,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c[77378,77391] [2022-03-18 21:22:45,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:22:45,897 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:22:45,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c[77378,77391] [2022-03-18 21:22:45,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:22:45,976 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:22:45,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45 WrapperNode [2022-03-18 21:22:45,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:22:45,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:22:45,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:22:45,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:22:45,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:45,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:45,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:45,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:46,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:46,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:46,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:46,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:22:46,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:22:46,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:22:46,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:22:46,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (1/1) ... [2022-03-18 21:22:46,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:22:46,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:22:46,062 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) [2022-03-18 21:22:46,070 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 [2022-03-18 21:22:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:22:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:22:46,086 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:22:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 21:22:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 21:22:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:22:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 21:22:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 21:22:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 21:22:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 21:22:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:22:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:22:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:22:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:22:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 21:22:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:22:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:22:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 21:22:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:22:46,196 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:22:46,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:22:46,873 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:22:47,204 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 21:22:47,205 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 21:22:47,231 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:22:47,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:22:47,241 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:22:47,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:22:47 BoogieIcfgContainer [2022-03-18 21:22:47,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:22:47,244 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:22:47,244 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:22:47,244 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:22:47,246 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:22:47" (1/1) ... [2022-03-18 21:22:47,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:22:47 BasicIcfg [2022-03-18 21:22:47,293 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:22:47,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:22:47,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:22:47,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:22:47,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:22:45" (1/4) ... [2022-03-18 21:22:47,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673cc233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:22:47, skipping insertion in model container [2022-03-18 21:22:47,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:22:45" (2/4) ... [2022-03-18 21:22:47,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673cc233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:22:47, skipping insertion in model container [2022-03-18 21:22:47,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:22:47" (3/4) ... [2022-03-18 21:22:47,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673cc233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:22:47, skipping insertion in model container [2022-03-18 21:22:47,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:22:47" (4/4) ... [2022-03-18 21:22:47,301 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-1.cJordan [2022-03-18 21:22:47,305 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:22:47,305 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:22:47,333 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:22:47,337 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-03-18 21:22:47,337 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:22:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 21:22:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 21:22:47,355 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:47,356 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:22:47,356 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:47,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1778359795, now seen corresponding path program 1 times [2022-03-18 21:22:47,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:47,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437590079] [2022-03-18 21:22:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:47,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:22:47,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:47,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437590079] [2022-03-18 21:22:47,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437590079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:47,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:47,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:47,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169799316] [2022-03-18 21:22:47,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:47,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:47,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:47,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:47,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:47,811 INFO L87 Difference]: Start difference. First operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:50,117 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 [] [2022-03-18 21:22:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:50,797 INFO L93 Difference]: Finished difference Result 302 states and 507 transitions. [2022-03-18 21:22:50,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:50,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-18 21:22:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:50,807 INFO L225 Difference]: With dead ends: 302 [2022-03-18 21:22:50,807 INFO L226 Difference]: Without dead ends: 276 [2022-03-18 21:22:50,808 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 [2022-03-18 21:22:50,811 INFO L912 BasicCegarLoop]: 174 mSDtfsCounter, 168 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:50,814 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 511 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 21:22:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-03-18 21:22:50,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 190. [2022-03-18 21:22:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6216216216216217) internal successors, (300), 185 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:50,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 304 transitions. [2022-03-18 21:22:50,863 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 304 transitions. Word has length 50 [2022-03-18 21:22:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:50,863 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 304 transitions. [2022-03-18 21:22:50,863 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:50,863 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 304 transitions. [2022-03-18 21:22:50,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-18 21:22:50,865 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:50,865 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:22:50,865 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:22:50,865 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:50,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1617675272, now seen corresponding path program 1 times [2022-03-18 21:22:50,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:50,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023469717] [2022-03-18 21:22:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:50,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:51,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:22:51,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:51,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023469717] [2022-03-18 21:22:51,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023469717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:51,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:51,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:51,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491720214] [2022-03-18 21:22:51,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:51,057 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:51,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:51,061 INFO L87 Difference]: Start difference. First operand 190 states and 304 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:53,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:55,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:56,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:56,022 INFO L93 Difference]: Finished difference Result 218 states and 344 transitions. [2022-03-18 21:22:56,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:56,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-18 21:22:56,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:56,024 INFO L225 Difference]: With dead ends: 218 [2022-03-18 21:22:56,024 INFO L226 Difference]: Without dead ends: 218 [2022-03-18 21:22:56,024 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 [2022-03-18 21:22:56,025 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 22 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:56,025 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 529 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 21:22:56,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-18 21:22:56,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2022-03-18 21:22:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6275510204081634) internal successors, (319), 196 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:56,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 323 transitions. [2022-03-18 21:22:56,033 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 323 transitions. Word has length 51 [2022-03-18 21:22:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:56,034 INFO L478 AbstractCegarLoop]: Abstraction has 201 states and 323 transitions. [2022-03-18 21:22:56,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:56,034 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 323 transitions. [2022-03-18 21:22:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:22:56,040 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:56,040 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:22:56,041 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:22:56,041 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1924351144, now seen corresponding path program 1 times [2022-03-18 21:22:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:56,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371795672] [2022-03-18 21:22:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:56,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:22:56,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:56,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371795672] [2022-03-18 21:22:56,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371795672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:56,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:56,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:56,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661163128] [2022-03-18 21:22:56,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:56,187 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:56,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:56,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:56,188 INFO L87 Difference]: Start difference. First operand 201 states and 323 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:57,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:59,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:00,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:00,767 INFO L93 Difference]: Finished difference Result 218 states and 343 transitions. [2022-03-18 21:23:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:00,768 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 [2022-03-18 21:23:00,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:00,769 INFO L225 Difference]: With dead ends: 218 [2022-03-18 21:23:00,769 INFO L226 Difference]: Without dead ends: 218 [2022-03-18 21:23:00,769 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 [2022-03-18 21:23:00,770 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 24 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:00,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 531 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 21:23:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-18 21:23:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2022-03-18 21:23:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6224489795918366) internal successors, (318), 196 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 322 transitions. [2022-03-18 21:23:00,784 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 322 transitions. Word has length 64 [2022-03-18 21:23:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:00,784 INFO L478 AbstractCegarLoop]: Abstraction has 201 states and 322 transitions. [2022-03-18 21:23:00,784 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) [2022-03-18 21:23:00,784 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 322 transitions. [2022-03-18 21:23:00,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:23:00,787 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:00,787 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:00,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:23:00,787 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:00,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash -332973682, now seen corresponding path program 1 times [2022-03-18 21:23:00,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:00,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171550615] [2022-03-18 21:23:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:00,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:00,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:00,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171550615] [2022-03-18 21:23:00,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171550615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:00,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:00,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:00,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57837253] [2022-03-18 21:23:00,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:00,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:00,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:00,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:00,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:00,909 INFO L87 Difference]: Start difference. First operand 201 states and 322 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:02,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:04,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:05,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:05,598 INFO L93 Difference]: Finished difference Result 217 states and 341 transitions. [2022-03-18 21:23:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:05,598 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 [2022-03-18 21:23:05,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:05,599 INFO L225 Difference]: With dead ends: 217 [2022-03-18 21:23:05,599 INFO L226 Difference]: Without dead ends: 217 [2022-03-18 21:23:05,599 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 [2022-03-18 21:23:05,600 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 28 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:05,600 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 533 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-18 21:23:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-18 21:23:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 201. [2022-03-18 21:23:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6173469387755102) internal successors, (317), 196 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 321 transitions. [2022-03-18 21:23:05,606 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 321 transitions. Word has length 65 [2022-03-18 21:23:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:05,606 INFO L478 AbstractCegarLoop]: Abstraction has 201 states and 321 transitions. [2022-03-18 21:23:05,606 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) [2022-03-18 21:23:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 321 transitions. [2022-03-18 21:23:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:23:05,631 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:05,631 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:05,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:23:05,631 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:05,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:05,632 INFO L85 PathProgramCache]: Analyzing trace with hash 628847982, now seen corresponding path program 1 times [2022-03-18 21:23:05,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:05,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169653267] [2022-03-18 21:23:05,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:05,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:05,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:05,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:05,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169653267] [2022-03-18 21:23:05,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169653267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:05,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:05,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:05,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080934067] [2022-03-18 21:23:05,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:05,752 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:05,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:05,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:05,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:05,753 INFO L87 Difference]: Start difference. First operand 201 states and 321 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:08,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:10,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:10,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:10,587 INFO L93 Difference]: Finished difference Result 326 states and 516 transitions. [2022-03-18 21:23:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:10,588 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 [2022-03-18 21:23:10,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:10,589 INFO L225 Difference]: With dead ends: 326 [2022-03-18 21:23:10,589 INFO L226 Difference]: Without dead ends: 326 [2022-03-18 21:23:10,589 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 [2022-03-18 21:23:10,590 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:10,590 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 392 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 21:23:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-03-18 21:23:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 213. [2022-03-18 21:23:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.6009615384615385) internal successors, (333), 208 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 337 transitions. [2022-03-18 21:23:10,596 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 337 transitions. Word has length 65 [2022-03-18 21:23:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:10,596 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 337 transitions. [2022-03-18 21:23:10,596 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) [2022-03-18 21:23:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 337 transitions. [2022-03-18 21:23:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:23:10,597 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:10,597 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:10,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:23:10,597 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:10,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:10,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2078408402, now seen corresponding path program 1 times [2022-03-18 21:23:10,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:10,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016846548] [2022-03-18 21:23:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:10,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:10,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016846548] [2022-03-18 21:23:10,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016846548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:10,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:10,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:10,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796848482] [2022-03-18 21:23:10,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:10,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:10,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:10,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:10,684 INFO L87 Difference]: Start difference. First operand 213 states and 337 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:12,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:12,997 INFO L93 Difference]: Finished difference Result 326 states and 513 transitions. [2022-03-18 21:23:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:12,998 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 [2022-03-18 21:23:12,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:12,999 INFO L225 Difference]: With dead ends: 326 [2022-03-18 21:23:12,999 INFO L226 Difference]: Without dead ends: 326 [2022-03-18 21:23:12,999 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 [2022-03-18 21:23:13,000 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 157 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:13,000 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 392 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:23:13,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-03-18 21:23:13,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 218. [2022-03-18 21:23:13,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 213 states have (on average 1.596244131455399) internal successors, (340), 213 states have internal predecessors, (340), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 344 transitions. [2022-03-18 21:23:13,005 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 344 transitions. Word has length 65 [2022-03-18 21:23:13,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:13,005 INFO L478 AbstractCegarLoop]: Abstraction has 218 states and 344 transitions. [2022-03-18 21:23:13,005 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) [2022-03-18 21:23:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 344 transitions. [2022-03-18 21:23:13,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:23:13,006 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:13,006 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:13,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:23:13,006 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:13,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:13,007 INFO L85 PathProgramCache]: Analyzing trace with hash 284141070, now seen corresponding path program 1 times [2022-03-18 21:23:13,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:13,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898127002] [2022-03-18 21:23:13,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:13,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:13,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:13,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898127002] [2022-03-18 21:23:13,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898127002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:13,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:13,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:13,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642198706] [2022-03-18 21:23:13,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:13,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:13,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:13,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:13,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:13,119 INFO L87 Difference]: Start difference. First operand 218 states and 344 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:14,405 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 [] [2022-03-18 21:23:15,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:15,639 INFO L93 Difference]: Finished difference Result 325 states and 509 transitions. [2022-03-18 21:23:15,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:15,640 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 [2022-03-18 21:23:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:15,641 INFO L225 Difference]: With dead ends: 325 [2022-03-18 21:23:15,641 INFO L226 Difference]: Without dead ends: 325 [2022-03-18 21:23:15,642 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:23:15,642 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 155 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:15,642 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:23:15,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-18 21:23:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 219. [2022-03-18 21:23:15,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5841121495327102) internal successors, (339), 214 states have internal predecessors, (339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 343 transitions. [2022-03-18 21:23:15,647 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 343 transitions. Word has length 65 [2022-03-18 21:23:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:15,647 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 343 transitions. [2022-03-18 21:23:15,647 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) [2022-03-18 21:23:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 343 transitions. [2022-03-18 21:23:15,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 21:23:15,648 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:15,648 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:15,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:23:15,648 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:15,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:15,648 INFO L85 PathProgramCache]: Analyzing trace with hash 100134632, now seen corresponding path program 1 times [2022-03-18 21:23:15,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:15,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479315923] [2022-03-18 21:23:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:15,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:15,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:15,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479315923] [2022-03-18 21:23:15,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479315923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:15,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:15,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:15,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920837064] [2022-03-18 21:23:15,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:15,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:15,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:15,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:15,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:15,732 INFO L87 Difference]: Start difference. First operand 219 states and 343 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:17,736 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 [] [2022-03-18 21:23:18,782 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 [] [2022-03-18 21:23:19,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:19,910 INFO L93 Difference]: Finished difference Result 325 states and 506 transitions. [2022-03-18 21:23:19,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:19,910 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 [2022-03-18 21:23:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:19,911 INFO L225 Difference]: With dead ends: 325 [2022-03-18 21:23:19,911 INFO L226 Difference]: Without dead ends: 325 [2022-03-18 21:23:19,911 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 [2022-03-18 21:23:19,912 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:19,912 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 21:23:19,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-18 21:23:19,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 219. [2022-03-18 21:23:19,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5700934579439252) internal successors, (336), 214 states have internal predecessors, (336), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 340 transitions. [2022-03-18 21:23:19,916 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 340 transitions. Word has length 66 [2022-03-18 21:23:19,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:19,916 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 340 transitions. [2022-03-18 21:23:19,917 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) [2022-03-18 21:23:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 340 transitions. [2022-03-18 21:23:19,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 21:23:19,917 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:19,917 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:19,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:23:19,917 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:19,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:19,918 INFO L85 PathProgramCache]: Analyzing trace with hash 473246762, now seen corresponding path program 1 times [2022-03-18 21:23:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:19,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160184869] [2022-03-18 21:23:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:19,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:20,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:20,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160184869] [2022-03-18 21:23:20,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160184869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:20,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:20,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:20,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968532295] [2022-03-18 21:23:20,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:20,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:20,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:20,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:20,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:20,031 INFO L87 Difference]: Start difference. First operand 219 states and 340 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:22,756 INFO L93 Difference]: Finished difference Result 232 states and 356 transitions. [2022-03-18 21:23:22,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:22,756 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 [2022-03-18 21:23:22,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:22,757 INFO L225 Difference]: With dead ends: 232 [2022-03-18 21:23:22,757 INFO L226 Difference]: Without dead ends: 232 [2022-03-18 21:23:22,757 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 [2022-03-18 21:23:22,758 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 20 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:22,758 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 539 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 21:23:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-03-18 21:23:22,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219. [2022-03-18 21:23:22,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5654205607476634) internal successors, (335), 214 states have internal predecessors, (335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 339 transitions. [2022-03-18 21:23:22,762 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 339 transitions. Word has length 67 [2022-03-18 21:23:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:22,762 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 339 transitions. [2022-03-18 21:23:22,762 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) [2022-03-18 21:23:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 339 transitions. [2022-03-18 21:23:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:23:22,763 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:22,763 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:22,763 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:23:22,763 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:22,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:22,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2063563973, now seen corresponding path program 1 times [2022-03-18 21:23:22,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:22,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772215036] [2022-03-18 21:23:22,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:22,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:22,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772215036] [2022-03-18 21:23:22,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772215036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:22,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:22,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731699832] [2022-03-18 21:23:22,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:22,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:22,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:22,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:22,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:22,851 INFO L87 Difference]: Start difference. First operand 219 states and 339 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:24,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:25,641 INFO L93 Difference]: Finished difference Result 222 states and 342 transitions. [2022-03-18 21:23:25,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:25,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-18 21:23:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:25,642 INFO L225 Difference]: With dead ends: 222 [2022-03-18 21:23:25,642 INFO L226 Difference]: Without dead ends: 222 [2022-03-18 21:23:25,642 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:23:25,643 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 11 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:25,643 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 553 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 21:23:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-18 21:23:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2022-03-18 21:23:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.560747663551402) internal successors, (334), 214 states have internal predecessors, (334), 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) [2022-03-18 21:23:25,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 338 transitions. [2022-03-18 21:23:25,646 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 338 transitions. Word has length 68 [2022-03-18 21:23:25,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:25,646 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 338 transitions. [2022-03-18 21:23:25,647 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 338 transitions. [2022-03-18 21:23:25,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:23:25,647 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:25,647 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:25,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:23:25,647 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:25,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:25,648 INFO L85 PathProgramCache]: Analyzing trace with hash 37532662, now seen corresponding path program 1 times [2022-03-18 21:23:25,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:25,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787694292] [2022-03-18 21:23:25,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:25,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:23:25,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:25,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787694292] [2022-03-18 21:23:25,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787694292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:25,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:25,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:25,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828146691] [2022-03-18 21:23:25,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:25,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:25,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:25,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:25,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:25,742 INFO L87 Difference]: Start difference. First operand 219 states and 338 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:27,015 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 [] [2022-03-18 21:23:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:29,459 INFO L93 Difference]: Finished difference Result 325 states and 503 transitions. [2022-03-18 21:23:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-18 21:23:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:29,461 INFO L225 Difference]: With dead ends: 325 [2022-03-18 21:23:29,461 INFO L226 Difference]: Without dead ends: 325 [2022-03-18 21:23:29,461 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 [2022-03-18 21:23:29,461 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 132 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:29,462 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 416 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:23:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-18 21:23:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 241. [2022-03-18 21:23:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.597457627118644) internal successors, (377), 236 states have internal predecessors, (377), 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) [2022-03-18 21:23:29,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 381 transitions. [2022-03-18 21:23:29,465 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 381 transitions. Word has length 68 [2022-03-18 21:23:29,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:29,466 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 381 transitions. [2022-03-18 21:23:29,466 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:29,466 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 381 transitions. [2022-03-18 21:23:29,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-18 21:23:29,466 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:29,466 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:23:29,467 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:23:29,467 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:29,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1986857855, now seen corresponding path program 1 times [2022-03-18 21:23:29,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:29,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56088765] [2022-03-18 21:23:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:29,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:29,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-18 21:23:29,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:29,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56088765] [2022-03-18 21:23:29,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56088765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:29,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:29,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:29,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751078528] [2022-03-18 21:23:29,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:29,574 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:29,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:29,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:29,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:29,574 INFO L87 Difference]: Start difference. First operand 241 states and 381 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:32,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:32,676 INFO L93 Difference]: Finished difference Result 283 states and 441 transitions. [2022-03-18 21:23:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:32,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-18 21:23:32,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:32,678 INFO L225 Difference]: With dead ends: 283 [2022-03-18 21:23:32,678 INFO L226 Difference]: Without dead ends: 283 [2022-03-18 21:23:32,678 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 [2022-03-18 21:23:32,678 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 30 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:32,679 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 553 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-18 21:23:32,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-18 21:23:32,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 263. [2022-03-18 21:23:32,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.5930232558139534) internal successors, (411), 258 states have internal predecessors, (411), 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) [2022-03-18 21:23:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 415 transitions. [2022-03-18 21:23:32,683 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 415 transitions. Word has length 96 [2022-03-18 21:23:32,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:32,683 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 415 transitions. [2022-03-18 21:23:32,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 415 transitions. [2022-03-18 21:23:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-18 21:23:32,684 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:32,684 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:32,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:23:32,684 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:32,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:32,684 INFO L85 PathProgramCache]: Analyzing trace with hash -67257851, now seen corresponding path program 1 times [2022-03-18 21:23:32,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:32,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982261017] [2022-03-18 21:23:32,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:32,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:32,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:23:32,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:32,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982261017] [2022-03-18 21:23:32,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982261017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:32,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:32,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:32,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487178492] [2022-03-18 21:23:32,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:32,774 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:32,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:32,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:32,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:32,774 INFO L87 Difference]: Start difference. First operand 263 states and 415 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:34,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:34,660 INFO L93 Difference]: Finished difference Result 385 states and 601 transitions. [2022-03-18 21:23:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:34,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-18 21:23:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:34,661 INFO L225 Difference]: With dead ends: 385 [2022-03-18 21:23:34,661 INFO L226 Difference]: Without dead ends: 385 [2022-03-18 21:23:34,661 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 [2022-03-18 21:23:34,662 INFO L912 BasicCegarLoop]: 268 mSDtfsCounter, 155 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:34,662 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 660 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 21:23:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-03-18 21:23:34,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 279. [2022-03-18 21:23:34,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 274 states have (on average 1.5802919708029197) internal successors, (433), 274 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 437 transitions. [2022-03-18 21:23:34,667 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 437 transitions. Word has length 109 [2022-03-18 21:23:34,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:34,667 INFO L478 AbstractCegarLoop]: Abstraction has 279 states and 437 transitions. [2022-03-18 21:23:34,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 437 transitions. [2022-03-18 21:23:34,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 21:23:34,668 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:34,668 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:34,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:23:34,668 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1890503815, now seen corresponding path program 1 times [2022-03-18 21:23:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:34,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185428776] [2022-03-18 21:23:34,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:34,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-18 21:23:34,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:34,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185428776] [2022-03-18 21:23:34,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185428776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:34,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:34,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:34,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716730769] [2022-03-18 21:23:34,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:34,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:34,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:34,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:34,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:34,767 INFO L87 Difference]: Start difference. First operand 279 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:36,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:38,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:39,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:40,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:40,035 INFO L93 Difference]: Finished difference Result 292 states and 452 transitions. [2022-03-18 21:23:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:40,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-18 21:23:40,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:40,036 INFO L225 Difference]: With dead ends: 292 [2022-03-18 21:23:40,036 INFO L226 Difference]: Without dead ends: 292 [2022-03-18 21:23:40,036 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 [2022-03-18 21:23:40,037 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 20 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:40,037 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 618 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:23:40,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-18 21:23:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 279. [2022-03-18 21:23:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 274 states have (on average 1.5766423357664234) internal successors, (432), 274 states have internal predecessors, (432), 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) [2022-03-18 21:23:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 436 transitions. [2022-03-18 21:23:40,041 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 436 transitions. Word has length 110 [2022-03-18 21:23:40,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:40,041 INFO L478 AbstractCegarLoop]: Abstraction has 279 states and 436 transitions. [2022-03-18 21:23:40,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:40,041 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 436 transitions. [2022-03-18 21:23:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-18 21:23:40,042 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:40,042 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:40,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:23:40,042 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:40,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:40,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1574692822, now seen corresponding path program 1 times [2022-03-18 21:23:40,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:40,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790036460] [2022-03-18 21:23:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:40,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:40,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-18 21:23:40,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:40,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790036460] [2022-03-18 21:23:40,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790036460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:40,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:40,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:23:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934757898] [2022-03-18 21:23:40,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:40,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:23:40,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:40,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:23:40,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:23:40,147 INFO L87 Difference]: Start difference. First operand 279 states and 436 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:44,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:44,029 INFO L93 Difference]: Finished difference Result 288 states and 447 transitions. [2022-03-18 21:23:44,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:23:44,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-18 21:23:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:44,030 INFO L225 Difference]: With dead ends: 288 [2022-03-18 21:23:44,030 INFO L226 Difference]: Without dead ends: 288 [2022-03-18 21:23:44,030 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 [2022-03-18 21:23:44,031 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 3 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:44,031 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 697 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-18 21:23:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-03-18 21:23:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-03-18 21:23:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5653710247349824) internal successors, (443), 283 states have internal predecessors, (443), 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) [2022-03-18 21:23:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 447 transitions. [2022-03-18 21:23:44,035 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 447 transitions. Word has length 111 [2022-03-18 21:23:44,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:44,035 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 447 transitions. [2022-03-18 21:23:44,035 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 447 transitions. [2022-03-18 21:23:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-18 21:23:44,036 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:44,036 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:44,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:23:44,036 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:44,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1663078770, now seen corresponding path program 1 times [2022-03-18 21:23:44,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:44,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543586019] [2022-03-18 21:23:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:44,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:23:44,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:44,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543586019] [2022-03-18 21:23:44,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543586019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:44,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:44,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:44,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181110449] [2022-03-18 21:23:44,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:44,126 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:44,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:44,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:44,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:44,127 INFO L87 Difference]: Start difference. First operand 288 states and 447 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:47,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:47,596 INFO L93 Difference]: Finished difference Result 381 states and 576 transitions. [2022-03-18 21:23:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:47,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-18 21:23:47,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:47,598 INFO L225 Difference]: With dead ends: 381 [2022-03-18 21:23:47,598 INFO L226 Difference]: Without dead ends: 381 [2022-03-18 21:23:47,598 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 [2022-03-18 21:23:47,599 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 157 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:47,599 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 416 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 21:23:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-18 21:23:47,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 288. [2022-03-18 21:23:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5512367491166077) internal successors, (439), 283 states have internal predecessors, (439), 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) [2022-03-18 21:23:47,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 443 transitions. [2022-03-18 21:23:47,604 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 443 transitions. Word has length 113 [2022-03-18 21:23:47,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:47,604 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 443 transitions. [2022-03-18 21:23:47,604 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 443 transitions. [2022-03-18 21:23:47,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-18 21:23:47,605 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:47,605 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:23:47,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:23:47,605 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:47,605 INFO L85 PathProgramCache]: Analyzing trace with hash -452187025, now seen corresponding path program 1 times [2022-03-18 21:23:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:47,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603094831] [2022-03-18 21:23:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:47,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:23:47,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:47,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603094831] [2022-03-18 21:23:47,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603094831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:47,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:47,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:47,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035097086] [2022-03-18 21:23:47,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:47,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:47,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:47,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:47,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:47,693 INFO L87 Difference]: Start difference. First operand 288 states and 443 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:50,869 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 [] [2022-03-18 21:23:51,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:51,753 INFO L93 Difference]: Finished difference Result 305 states and 464 transitions. [2022-03-18 21:23:51,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:51,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-18 21:23:51,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:51,754 INFO L225 Difference]: With dead ends: 305 [2022-03-18 21:23:51,754 INFO L226 Difference]: Without dead ends: 305 [2022-03-18 21:23:51,754 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 [2022-03-18 21:23:51,755 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 33 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:51,755 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 559 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 21:23:51,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-18 21:23:51,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 288. [2022-03-18 21:23:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.547703180212014) internal successors, (438), 283 states have internal predecessors, (438), 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) [2022-03-18 21:23:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 442 transitions. [2022-03-18 21:23:51,759 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 442 transitions. Word has length 114 [2022-03-18 21:23:51,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:51,759 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 442 transitions. [2022-03-18 21:23:51,759 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 442 transitions. [2022-03-18 21:23:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-18 21:23:51,760 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:51,760 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:51,760 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 21:23:51,760 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:51,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1883754976, now seen corresponding path program 1 times [2022-03-18 21:23:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:51,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551604717] [2022-03-18 21:23:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:51,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:23:51,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:51,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551604717] [2022-03-18 21:23:51,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551604717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:51,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:51,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783341548] [2022-03-18 21:23:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:51,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:51,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:51,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:51,852 INFO L87 Difference]: Start difference. First operand 288 states and 442 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) [2022-03-18 21:23:53,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:54,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:54,726 INFO L93 Difference]: Finished difference Result 396 states and 603 transitions. [2022-03-18 21:23:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:54,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-18 21:23:54,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:54,728 INFO L225 Difference]: With dead ends: 396 [2022-03-18 21:23:54,728 INFO L226 Difference]: Without dead ends: 396 [2022-03-18 21:23:54,728 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 [2022-03-18 21:23:54,729 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 96 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:54,729 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 553 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 21:23:54,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-03-18 21:23:54,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 322. [2022-03-18 21:23:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.5520504731861198) internal successors, (492), 317 states have internal predecessors, (492), 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) [2022-03-18 21:23:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 496 transitions. [2022-03-18 21:23:54,733 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 496 transitions. Word has length 118 [2022-03-18 21:23:54,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:54,734 INFO L478 AbstractCegarLoop]: Abstraction has 322 states and 496 transitions. [2022-03-18 21:23:54,734 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) [2022-03-18 21:23:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 496 transitions. [2022-03-18 21:23:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-18 21:23:54,735 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:54,735 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:54,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 21:23:54,735 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:54,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:54,735 INFO L85 PathProgramCache]: Analyzing trace with hash -929526081, now seen corresponding path program 1 times [2022-03-18 21:23:54,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:54,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919832300] [2022-03-18 21:23:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:54,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:23:54,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:54,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919832300] [2022-03-18 21:23:54,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919832300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:54,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:54,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:54,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205927257] [2022-03-18 21:23:54,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:54,831 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:54,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:54,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:54,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:54,832 INFO L87 Difference]: Start difference. First operand 322 states and 496 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) [2022-03-18 21:23:56,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:57,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:59,557 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 [] [2022-03-18 21:23:59,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:00,000 INFO L93 Difference]: Finished difference Result 491 states and 757 transitions. [2022-03-18 21:24:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:00,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-18 21:24:00,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:00,011 INFO L225 Difference]: With dead ends: 491 [2022-03-18 21:24:00,011 INFO L226 Difference]: Without dead ends: 491 [2022-03-18 21:24:00,011 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:24:00,012 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 137 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:00,012 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 428 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 21:24:00,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-03-18 21:24:00,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 352. [2022-03-18 21:24:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 347 states have (on average 1.5619596541786744) internal successors, (542), 347 states have internal predecessors, (542), 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) [2022-03-18 21:24:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 546 transitions. [2022-03-18 21:24:00,018 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 546 transitions. Word has length 118 [2022-03-18 21:24:00,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:00,018 INFO L478 AbstractCegarLoop]: Abstraction has 352 states and 546 transitions. [2022-03-18 21:24:00,019 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) [2022-03-18 21:24:00,019 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 546 transitions. [2022-03-18 21:24:00,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-18 21:24:00,020 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:00,020 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:24:00,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 21:24:00,020 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash 638819263, now seen corresponding path program 1 times [2022-03-18 21:24:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:00,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280103418] [2022-03-18 21:24:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:00,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-18 21:24:00,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:00,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280103418] [2022-03-18 21:24:00,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280103418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:00,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:00,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:00,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549026284] [2022-03-18 21:24:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:00,123 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:00,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:00,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:00,125 INFO L87 Difference]: Start difference. First operand 352 states and 546 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:02,902 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 [] [2022-03-18 21:24:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:04,514 INFO L93 Difference]: Finished difference Result 435 states and 661 transitions. [2022-03-18 21:24:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-18 21:24:04,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:04,516 INFO L225 Difference]: With dead ends: 435 [2022-03-18 21:24:04,516 INFO L226 Difference]: Without dead ends: 435 [2022-03-18 21:24:04,516 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 [2022-03-18 21:24:04,517 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:04,517 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 21:24:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-18 21:24:04,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 352. [2022-03-18 21:24:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 347 states have (on average 1.5446685878962536) internal successors, (536), 347 states have internal predecessors, (536), 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) [2022-03-18 21:24:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 540 transitions. [2022-03-18 21:24:04,521 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 540 transitions. Word has length 123 [2022-03-18 21:24:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:04,521 INFO L478 AbstractCegarLoop]: Abstraction has 352 states and 540 transitions. [2022-03-18 21:24:04,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 540 transitions. [2022-03-18 21:24:04,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-18 21:24:04,522 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:04,522 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, 1, 1] [2022-03-18 21:24:04,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 21:24:04,522 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:04,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:04,523 INFO L85 PathProgramCache]: Analyzing trace with hash -194713814, now seen corresponding path program 1 times [2022-03-18 21:24:04,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:04,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436322082] [2022-03-18 21:24:04,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:04,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:24:04,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:04,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436322082] [2022-03-18 21:24:04,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436322082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:04,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:04,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:04,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176928792] [2022-03-18 21:24:04,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:04,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:04,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:04,614 INFO L87 Difference]: Start difference. First operand 352 states and 540 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) [2022-03-18 21:24:05,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:07,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:07,584 INFO L93 Difference]: Finished difference Result 450 states and 687 transitions. [2022-03-18 21:24:07,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:07,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-18 21:24:07,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:07,586 INFO L225 Difference]: With dead ends: 450 [2022-03-18 21:24:07,586 INFO L226 Difference]: Without dead ends: 450 [2022-03-18 21:24:07,586 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 [2022-03-18 21:24:07,586 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 89 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:07,586 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 531 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 21:24:07,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-03-18 21:24:07,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 391. [2022-03-18 21:24:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.549222797927461) internal successors, (598), 386 states have internal predecessors, (598), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 602 transitions. [2022-03-18 21:24:07,593 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 602 transitions. Word has length 124 [2022-03-18 21:24:07,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:07,594 INFO L478 AbstractCegarLoop]: Abstraction has 391 states and 602 transitions. [2022-03-18 21:24:07,594 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) [2022-03-18 21:24:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 602 transitions. [2022-03-18 21:24:07,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-18 21:24:07,594 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:07,594 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, 1, 1] [2022-03-18 21:24:07,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 21:24:07,595 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:07,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:07,595 INFO L85 PathProgramCache]: Analyzing trace with hash 914101385, now seen corresponding path program 1 times [2022-03-18 21:24:07,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:07,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8556796] [2022-03-18 21:24:07,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:07,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:07,694 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:24:07,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:07,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8556796] [2022-03-18 21:24:07,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8556796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:07,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:07,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:07,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103517099] [2022-03-18 21:24:07,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:07,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:07,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:07,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:07,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:07,696 INFO L87 Difference]: Start difference. First operand 391 states and 602 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) [2022-03-18 21:24:10,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:11,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:11,261 INFO L93 Difference]: Finished difference Result 514 states and 786 transitions. [2022-03-18 21:24:11,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:11,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-18 21:24:11,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:11,263 INFO L225 Difference]: With dead ends: 514 [2022-03-18 21:24:11,263 INFO L226 Difference]: Without dead ends: 514 [2022-03-18 21:24:11,263 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 [2022-03-18 21:24:11,264 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 132 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:11,264 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 394 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 21:24:11,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-03-18 21:24:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 389. [2022-03-18 21:24:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5494791666666667) internal successors, (595), 384 states have internal predecessors, (595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 599 transitions. [2022-03-18 21:24:11,269 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 599 transitions. Word has length 124 [2022-03-18 21:24:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:11,269 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 599 transitions. [2022-03-18 21:24:11,269 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) [2022-03-18 21:24:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 599 transitions. [2022-03-18 21:24:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-18 21:24:11,270 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:11,270 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, 1, 1] [2022-03-18 21:24:11,270 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 21:24:11,270 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:11,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:11,271 INFO L85 PathProgramCache]: Analyzing trace with hash 615512470, now seen corresponding path program 1 times [2022-03-18 21:24:11,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:11,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673051387] [2022-03-18 21:24:11,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:11,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:24:11,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:11,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673051387] [2022-03-18 21:24:11,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673051387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:11,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:11,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:11,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638577496] [2022-03-18 21:24:11,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:11,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:11,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:11,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:11,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:11,410 INFO L87 Difference]: Start difference. First operand 389 states and 599 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:15,792 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 [] [2022-03-18 21:24:16,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:16,184 INFO L93 Difference]: Finished difference Result 472 states and 718 transitions. [2022-03-18 21:24:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:16,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-18 21:24:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:16,186 INFO L225 Difference]: With dead ends: 472 [2022-03-18 21:24:16,186 INFO L226 Difference]: Without dead ends: 472 [2022-03-18 21:24:16,186 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 [2022-03-18 21:24:16,187 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 131 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:16,187 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 394 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 21:24:16,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-18 21:24:16,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 389. [2022-03-18 21:24:16,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5442708333333333) internal successors, (593), 384 states have internal predecessors, (593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 597 transitions. [2022-03-18 21:24:16,191 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 597 transitions. Word has length 125 [2022-03-18 21:24:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:16,192 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 597 transitions. [2022-03-18 21:24:16,192 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 597 transitions. [2022-03-18 21:24:16,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 21:24:16,192 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:16,193 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] [2022-03-18 21:24:16,193 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 21:24:16,193 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:16,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:16,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1069531404, now seen corresponding path program 1 times [2022-03-18 21:24:16,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:16,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419354013] [2022-03-18 21:24:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:16,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:16,279 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:24:16,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:16,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419354013] [2022-03-18 21:24:16,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419354013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:16,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:16,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581625418] [2022-03-18 21:24:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:16,280 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:16,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:16,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:16,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:16,280 INFO L87 Difference]: Start difference. First operand 389 states and 597 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) [2022-03-18 21:24:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:18,123 INFO L93 Difference]: Finished difference Result 476 states and 725 transitions. [2022-03-18 21:24:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:18,124 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 [2022-03-18 21:24:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:18,125 INFO L225 Difference]: With dead ends: 476 [2022-03-18 21:24:18,125 INFO L226 Difference]: Without dead ends: 476 [2022-03-18 21:24:18,125 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 [2022-03-18 21:24:18,126 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 68 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:18,126 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 531 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-18 21:24:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-03-18 21:24:18,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 432. [2022-03-18 21:24:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 427 states have (on average 1.5433255269320842) internal successors, (659), 427 states have internal predecessors, (659), 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) [2022-03-18 21:24:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 663 transitions. [2022-03-18 21:24:18,130 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 663 transitions. Word has length 132 [2022-03-18 21:24:18,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:18,131 INFO L478 AbstractCegarLoop]: Abstraction has 432 states and 663 transitions. [2022-03-18 21:24:18,131 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) [2022-03-18 21:24:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 663 transitions. [2022-03-18 21:24:18,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 21:24:18,131 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:18,131 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] [2022-03-18 21:24:18,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 21:24:18,132 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:18,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:18,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2017517717, now seen corresponding path program 1 times [2022-03-18 21:24:18,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:18,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486166182] [2022-03-18 21:24:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:18,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-18 21:24:18,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:18,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486166182] [2022-03-18 21:24:18,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486166182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:18,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:18,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:18,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368679891] [2022-03-18 21:24:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:18,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:18,241 INFO L87 Difference]: Start difference. First operand 432 states and 663 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) [2022-03-18 21:24:20,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:20,875 INFO L93 Difference]: Finished difference Result 478 states and 728 transitions. [2022-03-18 21:24:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:20,875 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 132 [2022-03-18 21:24:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:20,877 INFO L225 Difference]: With dead ends: 478 [2022-03-18 21:24:20,877 INFO L226 Difference]: Without dead ends: 478 [2022-03-18 21:24:20,877 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 [2022-03-18 21:24:20,877 INFO L912 BasicCegarLoop]: 260 mSDtfsCounter, 35 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:20,877 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 649 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-18 21:24:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-03-18 21:24:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 456. [2022-03-18 21:24:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5388026607538803) internal successors, (694), 451 states have internal predecessors, (694), 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) [2022-03-18 21:24:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 698 transitions. [2022-03-18 21:24:20,895 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 698 transitions. Word has length 132 [2022-03-18 21:24:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:20,896 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 698 transitions. [2022-03-18 21:24:20,896 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) [2022-03-18 21:24:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 698 transitions. [2022-03-18 21:24:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:24:20,897 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:20,897 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, 1] [2022-03-18 21:24:20,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 21:24:20,897 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:20,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash -33221834, now seen corresponding path program 1 times [2022-03-18 21:24:20,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:20,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305838900] [2022-03-18 21:24:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:20,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:24:21,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:21,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305838900] [2022-03-18 21:24:21,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305838900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:21,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:21,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:21,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119198611] [2022-03-18 21:24:21,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:21,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:21,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:21,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:21,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:21,015 INFO L87 Difference]: Start difference. First operand 456 states and 698 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) [2022-03-18 21:24:24,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:24,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:24,664 INFO L93 Difference]: Finished difference Result 579 states and 876 transitions. [2022-03-18 21:24:24,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:24,664 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 [2022-03-18 21:24:24,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:24,666 INFO L225 Difference]: With dead ends: 579 [2022-03-18 21:24:24,666 INFO L226 Difference]: Without dead ends: 579 [2022-03-18 21:24:24,666 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 [2022-03-18 21:24:24,666 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 138 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:24,666 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 21:24:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-03-18 21:24:24,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 486. [2022-03-18 21:24:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.5301455301455302) internal successors, (736), 481 states have internal predecessors, (736), 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) [2022-03-18 21:24:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 740 transitions. [2022-03-18 21:24:24,671 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 740 transitions. Word has length 145 [2022-03-18 21:24:24,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:24,672 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 740 transitions. [2022-03-18 21:24:24,672 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) [2022-03-18 21:24:24,672 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 740 transitions. [2022-03-18 21:24:24,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 21:24:24,673 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:24,673 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, 1] [2022-03-18 21:24:24,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 21:24:24,673 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:24,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:24,673 INFO L85 PathProgramCache]: Analyzing trace with hash 946421911, now seen corresponding path program 1 times [2022-03-18 21:24:24,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:24,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146796718] [2022-03-18 21:24:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:24,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:24,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:24:24,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:24,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146796718] [2022-03-18 21:24:24,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146796718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:24,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:24,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:24,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650661945] [2022-03-18 21:24:24,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:24,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:24,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:24,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:24,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:24,759 INFO L87 Difference]: Start difference. First operand 486 states and 740 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) [2022-03-18 21:24:26,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:27,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:27,937 INFO L93 Difference]: Finished difference Result 528 states and 799 transitions. [2022-03-18 21:24:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:27,937 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 [2022-03-18 21:24:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:27,938 INFO L225 Difference]: With dead ends: 528 [2022-03-18 21:24:27,938 INFO L226 Difference]: Without dead ends: 528 [2022-03-18 21:24:27,939 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 [2022-03-18 21:24:27,939 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 75 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:27,939 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 535 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 21:24:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-03-18 21:24:27,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 486. [2022-03-18 21:24:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.528066528066528) internal successors, (735), 481 states have internal predecessors, (735), 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) [2022-03-18 21:24:27,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 739 transitions. [2022-03-18 21:24:27,944 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 739 transitions. Word has length 146 [2022-03-18 21:24:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:27,944 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 739 transitions. [2022-03-18 21:24:27,944 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) [2022-03-18 21:24:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 739 transitions. [2022-03-18 21:24:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 21:24:27,945 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:27,945 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:24:27,945 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 21:24:27,945 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:27,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:27,946 INFO L85 PathProgramCache]: Analyzing trace with hash 459164131, now seen corresponding path program 1 times [2022-03-18 21:24:27,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:27,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526602503] [2022-03-18 21:24:27,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:27,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:28,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 21:24:28,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:28,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526602503] [2022-03-18 21:24:28,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526602503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:28,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:28,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:28,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001623900] [2022-03-18 21:24:28,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:28,036 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:28,036 INFO L87 Difference]: Start difference. First operand 486 states and 739 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:30,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:30,009 INFO L93 Difference]: Finished difference Result 559 states and 838 transitions. [2022-03-18 21:24:30,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:30,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 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 [2022-03-18 21:24:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:30,011 INFO L225 Difference]: With dead ends: 559 [2022-03-18 21:24:30,011 INFO L226 Difference]: Without dead ends: 559 [2022-03-18 21:24:30,011 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:24:30,011 INFO L912 BasicCegarLoop]: 157 mSDtfsCounter, 146 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:30,012 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 438 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-18 21:24:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-18 21:24:30,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 486. [2022-03-18 21:24:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.5093555093555093) internal successors, (726), 481 states have internal predecessors, (726), 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) [2022-03-18 21:24:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 730 transitions. [2022-03-18 21:24:30,017 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 730 transitions. Word has length 148 [2022-03-18 21:24:30,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:30,017 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 730 transitions. [2022-03-18 21:24:30,017 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 730 transitions. [2022-03-18 21:24:30,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-18 21:24:30,018 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:30,018 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:24:30,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 21:24:30,018 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:30,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash -249706458, now seen corresponding path program 1 times [2022-03-18 21:24:30,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:30,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387872215] [2022-03-18 21:24:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:30,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:24:30,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:30,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387872215] [2022-03-18 21:24:30,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387872215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:30,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:30,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:30,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556405061] [2022-03-18 21:24:30,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:30,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:30,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:30,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:30,109 INFO L87 Difference]: Start difference. First operand 486 states and 730 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) [2022-03-18 21:24:31,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:34,321 INFO L93 Difference]: Finished difference Result 518 states and 776 transitions. [2022-03-18 21:24:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:34,321 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 [2022-03-18 21:24:34,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:34,323 INFO L225 Difference]: With dead ends: 518 [2022-03-18 21:24:34,323 INFO L226 Difference]: Without dead ends: 518 [2022-03-18 21:24:34,323 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 [2022-03-18 21:24:34,323 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 69 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:34,324 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 549 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 21:24:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-18 21:24:34,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 486. [2022-03-18 21:24:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.5072765072765073) internal successors, (725), 481 states have internal predecessors, (725), 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) [2022-03-18 21:24:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 729 transitions. [2022-03-18 21:24:34,329 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 729 transitions. Word has length 149 [2022-03-18 21:24:34,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:34,329 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 729 transitions. [2022-03-18 21:24:34,329 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) [2022-03-18 21:24:34,329 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 729 transitions. [2022-03-18 21:24:34,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-18 21:24:34,330 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:34,330 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:24:34,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 21:24:34,330 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:34,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:34,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1359087931, now seen corresponding path program 1 times [2022-03-18 21:24:34,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:34,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215281511] [2022-03-18 21:24:34,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:34,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:34,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:24:34,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:34,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215281511] [2022-03-18 21:24:34,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215281511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:34,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:34,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:34,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694313407] [2022-03-18 21:24:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:34,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:34,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:34,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:34,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:34,440 INFO L87 Difference]: Start difference. First operand 486 states and 729 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) [2022-03-18 21:24:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:37,472 INFO L93 Difference]: Finished difference Result 559 states and 830 transitions. [2022-03-18 21:24:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:37,472 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 [2022-03-18 21:24:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:37,473 INFO L225 Difference]: With dead ends: 559 [2022-03-18 21:24:37,473 INFO L226 Difference]: Without dead ends: 559 [2022-03-18 21:24:37,474 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 [2022-03-18 21:24:37,474 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 131 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:37,474 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 21:24:37,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-18 21:24:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 486. [2022-03-18 21:24:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.4927234927234927) internal successors, (718), 481 states have internal predecessors, (718), 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) [2022-03-18 21:24:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 722 transitions. [2022-03-18 21:24:37,479 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 722 transitions. Word has length 150 [2022-03-18 21:24:37,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:37,480 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 722 transitions. [2022-03-18 21:24:37,480 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) [2022-03-18 21:24:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 722 transitions. [2022-03-18 21:24:37,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:24:37,481 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:37,481 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:24:37,481 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 21:24:37,481 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash 617322954, now seen corresponding path program 1 times [2022-03-18 21:24:37,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:37,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587769397] [2022-03-18 21:24:37,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:37,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:24:37,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:37,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587769397] [2022-03-18 21:24:37,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587769397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:37,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:37,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:37,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345618999] [2022-03-18 21:24:37,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:37,568 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:37,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:37,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:37,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:37,569 INFO L87 Difference]: Start difference. First operand 486 states and 722 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:39,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:40,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:40,914 INFO L93 Difference]: Finished difference Result 559 states and 823 transitions. [2022-03-18 21:24:40,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:40,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:24:40,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:40,916 INFO L225 Difference]: With dead ends: 559 [2022-03-18 21:24:40,916 INFO L226 Difference]: Without dead ends: 559 [2022-03-18 21:24:40,916 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 [2022-03-18 21:24:40,916 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 135 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:40,917 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 428 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 21:24:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-18 21:24:40,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 486. [2022-03-18 21:24:40,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.478170478170478) internal successors, (711), 481 states have internal predecessors, (711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 715 transitions. [2022-03-18 21:24:40,921 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 715 transitions. Word has length 154 [2022-03-18 21:24:40,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:40,921 INFO L478 AbstractCegarLoop]: Abstraction has 486 states and 715 transitions. [2022-03-18 21:24:40,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:40,922 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 715 transitions. [2022-03-18 21:24:40,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:24:40,922 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:40,922 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:24:40,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 21:24:40,923 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:40,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1841801495, now seen corresponding path program 1 times [2022-03-18 21:24:40,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:40,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387820683] [2022-03-18 21:24:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:40,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 21:24:41,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:41,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387820683] [2022-03-18 21:24:41,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387820683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:41,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:41,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:24:41,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674559167] [2022-03-18 21:24:41,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:41,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:24:41,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:41,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:24:41,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:24:41,017 INFO L87 Difference]: Start difference. First operand 486 states and 715 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:43,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:43,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:43,921 INFO L93 Difference]: Finished difference Result 941 states and 1376 transitions. [2022-03-18 21:24:43,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:24:43,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:24:43,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:43,924 INFO L225 Difference]: With dead ends: 941 [2022-03-18 21:24:43,924 INFO L226 Difference]: Without dead ends: 941 [2022-03-18 21:24:43,924 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 [2022-03-18 21:24:43,924 INFO L912 BasicCegarLoop]: 257 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:43,925 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 451 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 21:24:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-03-18 21:24:43,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2022-03-18 21:24:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.467880085653105) internal successors, (1371), 934 states have internal predecessors, (1371), 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) [2022-03-18 21:24:43,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1375 transitions. [2022-03-18 21:24:43,934 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1375 transitions. Word has length 154 [2022-03-18 21:24:43,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:43,934 INFO L478 AbstractCegarLoop]: Abstraction has 939 states and 1375 transitions. [2022-03-18 21:24:43,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:43,934 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1375 transitions. [2022-03-18 21:24:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:24:43,935 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:43,935 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:24:43,936 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 21:24:43,936 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:43,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1466583112, now seen corresponding path program 1 times [2022-03-18 21:24:43,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:43,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826609108] [2022-03-18 21:24:43,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:43,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:44,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:44,012 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-18 21:24:44,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:44,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826609108] [2022-03-18 21:24:44,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826609108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:44,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:44,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:24:44,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434943340] [2022-03-18 21:24:44,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:44,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:24:44,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:44,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:24:44,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:24:44,014 INFO L87 Difference]: Start difference. First operand 939 states and 1375 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 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) [2022-03-18 21:24:46,704 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 [] [2022-03-18 21:24:47,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:47,322 INFO L93 Difference]: Finished difference Result 966 states and 1410 transitions. [2022-03-18 21:24:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:24:47,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 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 154 [2022-03-18 21:24:47,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:47,325 INFO L225 Difference]: With dead ends: 966 [2022-03-18 21:24:47,325 INFO L226 Difference]: Without dead ends: 966 [2022-03-18 21:24:47,325 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 [2022-03-18 21:24:47,325 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:47,325 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 433 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 21:24:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-03-18 21:24:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-03-18 21:24:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4630593132154006) internal successors, (1406), 961 states have internal predecessors, (1406), 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) [2022-03-18 21:24:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1410 transitions. [2022-03-18 21:24:47,333 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1410 transitions. Word has length 154 [2022-03-18 21:24:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:47,334 INFO L478 AbstractCegarLoop]: Abstraction has 966 states and 1410 transitions. [2022-03-18 21:24:47,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 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) [2022-03-18 21:24:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1410 transitions. [2022-03-18 21:24:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:24:47,335 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:47,335 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:24:47,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 21:24:47,335 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:47,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:47,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1174197287, now seen corresponding path program 1 times [2022-03-18 21:24:47,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:47,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692506385] [2022-03-18 21:24:47,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:47,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:47,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-18 21:24:47,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:47,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692506385] [2022-03-18 21:24:47,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692506385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:47,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:47,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:24:47,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997298831] [2022-03-18 21:24:47,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:47,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:24:47,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:24:47,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:24:47,416 INFO L87 Difference]: Start difference. First operand 966 states and 1410 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:49,039 INFO L93 Difference]: Finished difference Result 968 states and 1412 transitions. [2022-03-18 21:24:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:24:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:24:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:49,041 INFO L225 Difference]: With dead ends: 968 [2022-03-18 21:24:49,041 INFO L226 Difference]: Without dead ends: 968 [2022-03-18 21:24:49,042 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 [2022-03-18 21:24:49,042 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:49,042 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 412 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-18 21:24:49,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-03-18 21:24:49,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-03-18 21:24:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.462097611630322) internal successors, (1408), 963 states have internal predecessors, (1408), 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) [2022-03-18 21:24:49,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1412 transitions. [2022-03-18 21:24:49,058 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1412 transitions. Word has length 154 [2022-03-18 21:24:49,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:49,059 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1412 transitions. [2022-03-18 21:24:49,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1412 transitions. [2022-03-18 21:24:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-18 21:24:49,060 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:49,060 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:24:49,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 21:24:49,060 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:49,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash 320492784, now seen corresponding path program 1 times [2022-03-18 21:24:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:49,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285873661] [2022-03-18 21:24:49,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:49,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 21:24:49,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:49,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285873661] [2022-03-18 21:24:49,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285873661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:49,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:49,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:24:49,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109492849] [2022-03-18 21:24:49,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:49,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:24:49,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:49,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:24:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:24:49,159 INFO L87 Difference]: Start difference. First operand 968 states and 1412 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:51,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:52,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:53,801 INFO L93 Difference]: Finished difference Result 1503 states and 2186 transitions. [2022-03-18 21:24:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-18 21:24:53,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 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 156 [2022-03-18 21:24:53,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:53,805 INFO L225 Difference]: With dead ends: 1503 [2022-03-18 21:24:53,805 INFO L226 Difference]: Without dead ends: 1503 [2022-03-18 21:24:53,805 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:24:53,805 INFO L912 BasicCegarLoop]: 271 mSDtfsCounter, 95 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:53,805 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 865 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 21:24:53,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-03-18 21:24:53,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1484. [2022-03-18 21:24:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1479 states have (on average 1.4631507775524002) internal successors, (2164), 1479 states have internal predecessors, (2164), 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) [2022-03-18 21:24:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 2168 transitions. [2022-03-18 21:24:53,817 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 2168 transitions. Word has length 156 [2022-03-18 21:24:53,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:53,818 INFO L478 AbstractCegarLoop]: Abstraction has 1484 states and 2168 transitions. [2022-03-18 21:24:53,818 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 2168 transitions. [2022-03-18 21:24:53,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-18 21:24:53,820 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:53,820 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, 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] [2022-03-18 21:24:53,820 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 21:24:53,820 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:53,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1157233019, now seen corresponding path program 1 times [2022-03-18 21:24:53,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:53,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131518214] [2022-03-18 21:24:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:53,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:24:53,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:53,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131518214] [2022-03-18 21:24:53,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131518214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:53,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:53,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:53,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055115232] [2022-03-18 21:24:53,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:53,915 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:53,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:53,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:53,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:53,916 INFO L87 Difference]: Start difference. First operand 1484 states and 2168 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:56,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:57,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:58,312 INFO L93 Difference]: Finished difference Result 1888 states and 2734 transitions. [2022-03-18 21:24:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:24:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-18 21:24:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:58,316 INFO L225 Difference]: With dead ends: 1888 [2022-03-18 21:24:58,317 INFO L226 Difference]: Without dead ends: 1888 [2022-03-18 21:24:58,317 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 [2022-03-18 21:24:58,317 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 124 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:58,317 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 21:24:58,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2022-03-18 21:24:58,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1624. [2022-03-18 21:24:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1619 states have (on average 1.458307597282273) internal successors, (2361), 1619 states have internal predecessors, (2361), 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) [2022-03-18 21:24:58,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2365 transitions. [2022-03-18 21:24:58,331 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2365 transitions. Word has length 157 [2022-03-18 21:24:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:58,331 INFO L478 AbstractCegarLoop]: Abstraction has 1624 states and 2365 transitions. [2022-03-18 21:24:58,331 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:58,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2365 transitions. [2022-03-18 21:24:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-18 21:24:58,333 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:58,333 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-18 21:24:58,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 21:24:58,333 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:58,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1087901617, now seen corresponding path program 1 times [2022-03-18 21:24:58,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:58,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370776044] [2022-03-18 21:24:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:58,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:58,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:24:58,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:58,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370776044] [2022-03-18 21:24:58,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370776044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:24:58,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:24:58,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:24:58,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725977092] [2022-03-18 21:24:58,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:24:58,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:24:58,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:24:58,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:24:58,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:24:58,459 INFO L87 Difference]: Start difference. First operand 1624 states and 2365 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) [2022-03-18 21:25:01,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:01,137 INFO L93 Difference]: Finished difference Result 1684 states and 2440 transitions. [2022-03-18 21:25:01,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:25:01,137 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 157 [2022-03-18 21:25:01,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:01,141 INFO L225 Difference]: With dead ends: 1684 [2022-03-18 21:25:01,141 INFO L226 Difference]: Without dead ends: 1684 [2022-03-18 21:25:01,141 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:25:01,142 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 53 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:01,142 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 575 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 21:25:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2022-03-18 21:25:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1624. [2022-03-18 21:25:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1619 states have (on average 1.4564546016059297) internal successors, (2358), 1619 states have internal predecessors, (2358), 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) [2022-03-18 21:25:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2362 transitions. [2022-03-18 21:25:01,155 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2362 transitions. Word has length 157 [2022-03-18 21:25:01,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:01,155 INFO L478 AbstractCegarLoop]: Abstraction has 1624 states and 2362 transitions. [2022-03-18 21:25:01,156 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) [2022-03-18 21:25:01,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2362 transitions. [2022-03-18 21:25:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-18 21:25:01,158 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:01,158 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, 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] [2022-03-18 21:25:01,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 21:25:01,158 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:01,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:01,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1144606736, now seen corresponding path program 1 times [2022-03-18 21:25:01,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:01,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249012600] [2022-03-18 21:25:01,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:01,245 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:25:01,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:01,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249012600] [2022-03-18 21:25:01,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249012600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:25:01,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:25:01,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:25:01,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910478612] [2022-03-18 21:25:01,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:25:01,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:25:01,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:25:01,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:25:01,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:25:01,246 INFO L87 Difference]: Start difference. First operand 1624 states and 2362 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:03,264 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 [] [2022-03-18 21:25:03,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:03,663 INFO L93 Difference]: Finished difference Result 1766 states and 2544 transitions. [2022-03-18 21:25:03,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:25:03,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-18 21:25:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:03,667 INFO L225 Difference]: With dead ends: 1766 [2022-03-18 21:25:03,667 INFO L226 Difference]: Without dead ends: 1766 [2022-03-18 21:25:03,667 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 [2022-03-18 21:25:03,667 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 123 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:03,667 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 428 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:25:03,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-03-18 21:25:03,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1622. [2022-03-18 21:25:03,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1617 states have (on average 1.4477427334570192) internal successors, (2341), 1617 states have internal predecessors, (2341), 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) [2022-03-18 21:25:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2345 transitions. [2022-03-18 21:25:03,680 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2345 transitions. Word has length 158 [2022-03-18 21:25:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:03,681 INFO L478 AbstractCegarLoop]: Abstraction has 1622 states and 2345 transitions. [2022-03-18 21:25:03,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2345 transitions. [2022-03-18 21:25:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-18 21:25:03,682 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:03,682 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:25:03,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 21:25:03,683 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:03,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:03,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1962708150, now seen corresponding path program 1 times [2022-03-18 21:25:03,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:03,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588508992] [2022-03-18 21:25:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:03,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:25:03,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:03,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588508992] [2022-03-18 21:25:03,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588508992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:25:03,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:25:03,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:25:03,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481484727] [2022-03-18 21:25:03,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:25:03,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:25:03,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:25:03,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:25:03,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:25:03,774 INFO L87 Difference]: Start difference. First operand 1622 states and 2345 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:06,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:25:07,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:07,450 INFO L93 Difference]: Finished difference Result 2020 states and 2884 transitions. [2022-03-18 21:25:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:25:07,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-03-18 21:25:07,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:07,455 INFO L225 Difference]: With dead ends: 2020 [2022-03-18 21:25:07,455 INFO L226 Difference]: Without dead ends: 2020 [2022-03-18 21:25:07,455 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 [2022-03-18 21:25:07,455 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 132 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:07,456 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 506 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:25:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2022-03-18 21:25:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1726. [2022-03-18 21:25:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1721 states have (on average 1.4328878558977338) internal successors, (2466), 1721 states have internal predecessors, (2466), 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) [2022-03-18 21:25:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2470 transitions. [2022-03-18 21:25:07,470 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2470 transitions. Word has length 162 [2022-03-18 21:25:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:07,471 INFO L478 AbstractCegarLoop]: Abstraction has 1726 states and 2470 transitions. [2022-03-18 21:25:07,471 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2470 transitions. [2022-03-18 21:25:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-18 21:25:07,472 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:07,472 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:25:07,472 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 21:25:07,473 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:07,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:07,473 INFO L85 PathProgramCache]: Analyzing trace with hash -144990711, now seen corresponding path program 1 times [2022-03-18 21:25:07,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:07,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265678126] [2022-03-18 21:25:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:07,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:07,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:07,571 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:25:07,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:07,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265678126] [2022-03-18 21:25:07,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265678126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:25:07,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:25:07,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:25:07,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493661549] [2022-03-18 21:25:07,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:25:07,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:25:07,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:25:07,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:25:07,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:25:07,572 INFO L87 Difference]: Start difference. First operand 1726 states and 2470 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:09,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:25:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:10,365 INFO L93 Difference]: Finished difference Result 1868 states and 2640 transitions. [2022-03-18 21:25:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:25:10,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-18 21:25:10,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:10,380 INFO L225 Difference]: With dead ends: 1868 [2022-03-18 21:25:10,381 INFO L226 Difference]: Without dead ends: 1868 [2022-03-18 21:25:10,381 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 [2022-03-18 21:25:10,381 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 131 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:10,381 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 428 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 21:25:10,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2022-03-18 21:25:10,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1726. [2022-03-18 21:25:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1721 states have (on average 1.4171993027309704) internal successors, (2439), 1721 states have internal predecessors, (2439), 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) [2022-03-18 21:25:10,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2443 transitions. [2022-03-18 21:25:10,396 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2443 transitions. Word has length 163 [2022-03-18 21:25:10,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:10,396 INFO L478 AbstractCegarLoop]: Abstraction has 1726 states and 2443 transitions. [2022-03-18 21:25:10,396 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:10,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2443 transitions. [2022-03-18 21:25:10,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-18 21:25:10,398 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:10,398 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, 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] [2022-03-18 21:25:10,398 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 21:25:10,398 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:10,398 INFO L85 PathProgramCache]: Analyzing trace with hash -816086858, now seen corresponding path program 1 times [2022-03-18 21:25:10,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:10,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751737226] [2022-03-18 21:25:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:10,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:10,481 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:25:10,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:10,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751737226] [2022-03-18 21:25:10,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751737226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:25:10,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:25:10,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:25:10,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021687099] [2022-03-18 21:25:10,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:25:10,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:25:10,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:25:10,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:25:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:25:10,484 INFO L87 Difference]: Start difference. First operand 1726 states and 2443 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:12,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:12,803 INFO L93 Difference]: Finished difference Result 1771 states and 2498 transitions. [2022-03-18 21:25:12,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:25:12,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-18 21:25:12,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:12,806 INFO L225 Difference]: With dead ends: 1771 [2022-03-18 21:25:12,806 INFO L226 Difference]: Without dead ends: 1771 [2022-03-18 21:25:12,806 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 [2022-03-18 21:25:12,806 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 37 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:12,807 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 581 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:25:12,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-03-18 21:25:12,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1726. [2022-03-18 21:25:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1721 states have (on average 1.4154561301568855) internal successors, (2436), 1721 states have internal predecessors, (2436), 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) [2022-03-18 21:25:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2440 transitions. [2022-03-18 21:25:12,819 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2440 transitions. Word has length 166 [2022-03-18 21:25:12,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:12,819 INFO L478 AbstractCegarLoop]: Abstraction has 1726 states and 2440 transitions. [2022-03-18 21:25:12,819 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2440 transitions. [2022-03-18 21:25:12,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-18 21:25:12,821 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:12,821 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, 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] [2022-03-18 21:25:12,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 21:25:12,821 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:12,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:12,821 INFO L85 PathProgramCache]: Analyzing trace with hash 611576736, now seen corresponding path program 1 times [2022-03-18 21:25:12,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:12,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312286974] [2022-03-18 21:25:12,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:12,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:12,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:25:12,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:12,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312286974] [2022-03-18 21:25:12,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312286974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:25:12,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:25:12,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:25:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500213019] [2022-03-18 21:25:12,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:25:12,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:25:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:25:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:25:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:25:12,906 INFO L87 Difference]: Start difference. First operand 1726 states and 2440 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:14,648 INFO L93 Difference]: Finished difference Result 1753 states and 2470 transitions. [2022-03-18 21:25:14,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:25:14,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-18 21:25:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:14,650 INFO L225 Difference]: With dead ends: 1753 [2022-03-18 21:25:14,650 INFO L226 Difference]: Without dead ends: 1753 [2022-03-18 21:25:14,651 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 [2022-03-18 21:25:14,651 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 28 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:14,651 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 581 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-18 21:25:14,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2022-03-18 21:25:14,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1715. [2022-03-18 21:25:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1710 states have (on average 1.416374269005848) internal successors, (2422), 1710 states have internal predecessors, (2422), 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) [2022-03-18 21:25:14,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2426 transitions. [2022-03-18 21:25:14,664 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2426 transitions. Word has length 167 [2022-03-18 21:25:14,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:14,665 INFO L478 AbstractCegarLoop]: Abstraction has 1715 states and 2426 transitions. [2022-03-18 21:25:14,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:14,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2426 transitions. [2022-03-18 21:25:14,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-18 21:25:14,666 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:14,666 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, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:25:14,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 21:25:14,667 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:14,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:14,667 INFO L85 PathProgramCache]: Analyzing trace with hash 539217844, now seen corresponding path program 1 times [2022-03-18 21:25:14,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:14,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940108847] [2022-03-18 21:25:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:14,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:14,761 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-18 21:25:14,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:14,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940108847] [2022-03-18 21:25:14,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940108847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:25:14,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:25:14,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:25:14,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741016295] [2022-03-18 21:25:14,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:25:14,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:25:14,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:25:14,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:25:14,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:25:14,762 INFO L87 Difference]: Start difference. First operand 1715 states and 2426 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) [2022-03-18 21:25:15,938 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 [] [2022-03-18 21:25:18,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:25:19,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:19,077 INFO L93 Difference]: Finished difference Result 1767 states and 2488 transitions. [2022-03-18 21:25:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:25:19,077 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 168 [2022-03-18 21:25:19,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:19,080 INFO L225 Difference]: With dead ends: 1767 [2022-03-18 21:25:19,080 INFO L226 Difference]: Without dead ends: 1767 [2022-03-18 21:25:19,080 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 [2022-03-18 21:25:19,080 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 29 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:19,080 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 626 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-18 21:25:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2022-03-18 21:25:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1715. [2022-03-18 21:25:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1710 states have (on average 1.4140350877192982) internal successors, (2418), 1710 states have internal predecessors, (2418), 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) [2022-03-18 21:25:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2422 transitions. [2022-03-18 21:25:19,094 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2422 transitions. Word has length 168 [2022-03-18 21:25:19,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:19,094 INFO L478 AbstractCegarLoop]: Abstraction has 1715 states and 2422 transitions. [2022-03-18 21:25:19,094 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) [2022-03-18 21:25:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2422 transitions. [2022-03-18 21:25:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-18 21:25:19,096 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:19,096 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, 1, 1, 1] [2022-03-18 21:25:19,096 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 21:25:19,096 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:19,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:19,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1707771303, now seen corresponding path program 1 times [2022-03-18 21:25:19,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:19,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652116141] [2022-03-18 21:25:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:19,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-18 21:25:19,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:19,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652116141] [2022-03-18 21:25:19,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652116141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:25:19,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:25:19,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 21:25:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496559650] [2022-03-18 21:25:19,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:25:19,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 21:25:19,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:25:19,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 21:25:19,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:25:19,453 INFO L87 Difference]: Start difference. First operand 1715 states and 2422 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:24,119 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 [] [2022-03-18 21:25:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:25:24,540 INFO L93 Difference]: Finished difference Result 1723 states and 2432 transitions. [2022-03-18 21:25:24,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:25:24,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 177 [2022-03-18 21:25:24,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:25:24,542 INFO L225 Difference]: With dead ends: 1723 [2022-03-18 21:25:24,542 INFO L226 Difference]: Without dead ends: 1715 [2022-03-18 21:25:24,542 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 [2022-03-18 21:25:24,542 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:25:24,543 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 922 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:25:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2022-03-18 21:25:24,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2022-03-18 21:25:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1710 states have (on average 1.4134502923976608) internal successors, (2417), 1710 states have internal predecessors, (2417), 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) [2022-03-18 21:25:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2421 transitions. [2022-03-18 21:25:24,554 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2421 transitions. Word has length 177 [2022-03-18 21:25:24,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:25:24,554 INFO L478 AbstractCegarLoop]: Abstraction has 1715 states and 2421 transitions. [2022-03-18 21:25:24,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:25:24,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2421 transitions. [2022-03-18 21:25:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-18 21:25:24,556 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:25:24,556 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, 1, 1, 1] [2022-03-18 21:25:24,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 21:25:24,556 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:25:24,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:25:24,557 INFO L85 PathProgramCache]: Analyzing trace with hash -115415960, now seen corresponding path program 1 times [2022-03-18 21:25:24,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:25:24,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450416833] [2022-03-18 21:25:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:24,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:25:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:25:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:25:25,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:25:25,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450416833] [2022-03-18 21:25:25,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450416833] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:25:25,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959987731] [2022-03-18 21:25:25,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:25:25,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:25:25,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:25:25,365 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) [2022-03-18 21:25:25,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 21:25:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:25:26,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 206 conjunts are in the unsatisfiable core [2022-03-18 21:25:26,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:25:26,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-03-18 21:25:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:25:26,447 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 10709 treesize of output 1662