/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.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:21:27,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:21:27,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:21:27,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:21:27,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:21:27,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:21:27,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:21:27,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:21:27,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:21:27,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:21:27,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:21:27,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:21:27,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:21:27,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:21:27,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:21:27,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:21:27,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:21:27,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:21:27,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:21:27,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:21:27,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:21:27,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:21:27,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:21:27,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:21:27,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:21:27,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:21:27,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:21:27,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:21:27,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:21:27,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:21:27,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:21:27,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:21:27,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:21:27,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:21:27,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:21:27,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:21:27,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:21:27,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:21:27,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:21:27,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:21:27,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:21:27,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:21:27,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:21:27,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:21:27,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:21:27,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:21:27,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:21:27,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:21:27,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:21:27,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:21:27,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:21:27,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:21:27,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:21:27,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:21:27,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:21:27,406 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:21:27,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:21:27,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:21:27,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:21:27,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:21:27,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:21:27,674 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:21:27,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-01-31 16:21:27,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1a8c575/cd07437b3f7f416eb2d192af3a7baa9e/FLAGb187a912d [2022-01-31 16:21:28,200 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:21:28,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-01-31 16:21:28,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1a8c575/cd07437b3f7f416eb2d192af3a7baa9e/FLAGb187a912d [2022-01-31 16:21:28,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1a8c575/cd07437b3f7f416eb2d192af3a7baa9e [2022-01-31 16:21:28,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:21:28,518 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:21:28,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:21:28,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:21:28,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:21:28,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:21:28" (1/1) ... [2022-01-31 16:21:28,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@942941b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:28, skipping insertion in model container [2022-01-31 16:21:28,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:21:28" (1/1) ... [2022-01-31 16:21:28,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:21:28,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:21:28,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-01-31 16:21:28,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:21:28,945 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:21:29,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-01-31 16:21:29,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:21:29,034 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:21:29,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29 WrapperNode [2022-01-31 16:21:29,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:21:29,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:21:29,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:21:29,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:21:29,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:21:29,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:21:29,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:21:29,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:21:29,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (1/1) ... [2022-01-31 16:21:29,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:21:29,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:21:29,158 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) [2022-01-31 16:21:29,163 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 [2022-01-31 16:21:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:21:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:21:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:21:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 16:21:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 16:21:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:21:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:21:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 16:21:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 16:21:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 16:21:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:21:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:21:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:21:29,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:21:29,187 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 16:21:29,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:21:29,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 16:21:29,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 16:21:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:21:29,372 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:21:29,373 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:21:29,975 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:21:30,299 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 16:21:30,299 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 16:21:30,309 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:21:30,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:21:30,315 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:21:30,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:21:30 BoogieIcfgContainer [2022-01-31 16:21:30,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:21:30,317 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:21:30,317 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:21:30,319 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:21:30,321 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:21:30" (1/1) ... [2022-01-31 16:21:30,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:21:30 BasicIcfg [2022-01-31 16:21:30,370 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:21:30,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:21:30,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:21:30,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:21:30,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:21:28" (1/4) ... [2022-01-31 16:21:30,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114fa13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:21:30, skipping insertion in model container [2022-01-31 16:21:30,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:29" (2/4) ... [2022-01-31 16:21:30,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114fa13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:21:30, skipping insertion in model container [2022-01-31 16:21:30,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:21:30" (3/4) ... [2022-01-31 16:21:30,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114fa13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:21:30, skipping insertion in model container [2022-01-31 16:21:30,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:21:30" (4/4) ... [2022-01-31 16:21:30,378 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.cJordan [2022-01-31 16:21:30,381 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:21:30,381 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:21:30,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:21:30,423 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:21:30,424 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:21:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 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) [2022-01-31 16:21:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 16:21:30,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:30,457 INFO L514 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] [2022-01-31 16:21:30,457 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1946519082, now seen corresponding path program 1 times [2022-01-31 16:21:30,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:30,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895996706] [2022-01-31 16:21:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:30,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:30,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:30,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895996706] [2022-01-31 16:21:30,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895996706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:30,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:30,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:30,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194552658] [2022-01-31 16:21:30,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:30,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:30,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:30,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:30,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:30,988 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 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) [2022-01-31 16:21:33,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:33,829 INFO L93 Difference]: Finished difference Result 192 states and 314 transitions. [2022-01-31 16:21:33,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:33,831 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 [2022-01-31 16:21:33,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:33,838 INFO L225 Difference]: With dead ends: 192 [2022-01-31 16:21:33,838 INFO L226 Difference]: Without dead ends: 171 [2022-01-31 16:21:33,839 INFO L932 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 [2022-01-31 16:21:33,843 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:33,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 613 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 16:21:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-01-31 16:21:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-01-31 16:21:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5570469798657718) internal successors, (232), 149 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:33,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 236 transitions. [2022-01-31 16:21:33,924 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 236 transitions. Word has length 50 [2022-01-31 16:21:33,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:33,924 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 236 transitions. [2022-01-31 16:21:33,924 INFO L471 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) [2022-01-31 16:21:33,925 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 236 transitions. [2022-01-31 16:21:33,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 16:21:33,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:33,926 INFO L514 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] [2022-01-31 16:21:33,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:21:33,926 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:33,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:33,927 INFO L85 PathProgramCache]: Analyzing trace with hash 888216424, now seen corresponding path program 1 times [2022-01-31 16:21:33,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:33,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300514740] [2022-01-31 16:21:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:33,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:34,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:34,090 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:34,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:34,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300514740] [2022-01-31 16:21:34,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300514740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:34,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:34,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:34,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541503995] [2022-01-31 16:21:34,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:34,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:34,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:34,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:34,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:34,092 INFO L87 Difference]: Start difference. First operand 154 states and 236 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:36,486 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-01-31 16:21:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:36,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-01-31 16:21:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:36,488 INFO L225 Difference]: With dead ends: 272 [2022-01-31 16:21:36,488 INFO L226 Difference]: Without dead ends: 272 [2022-01-31 16:21:36,490 INFO L932 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 [2022-01-31 16:21:36,491 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:36,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 636 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:21:36,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-01-31 16:21:36,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 170. [2022-01-31 16:21:36,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5575757575757576) internal successors, (257), 165 states have internal predecessors, (257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:36,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 261 transitions. [2022-01-31 16:21:36,519 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 261 transitions. Word has length 63 [2022-01-31 16:21:36,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:36,519 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 261 transitions. [2022-01-31 16:21:36,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 261 transitions. [2022-01-31 16:21:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:21:36,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:36,524 INFO L514 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] [2022-01-31 16:21:36,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:21:36,525 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:36,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:36,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1909217456, now seen corresponding path program 1 times [2022-01-31 16:21:36,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:36,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587788683] [2022-01-31 16:21:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:36,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:36,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:36,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587788683] [2022-01-31 16:21:36,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587788683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:36,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:36,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:36,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710951296] [2022-01-31 16:21:36,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:36,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:36,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:36,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:36,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:36,688 INFO L87 Difference]: Start difference. First operand 170 states and 261 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) [2022-01-31 16:21:40,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:40,622 INFO L93 Difference]: Finished difference Result 287 states and 441 transitions. [2022-01-31 16:21:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:40,623 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 [2022-01-31 16:21:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:40,624 INFO L225 Difference]: With dead ends: 287 [2022-01-31 16:21:40,625 INFO L226 Difference]: Without dead ends: 287 [2022-01-31 16:21:40,625 INFO L932 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 [2022-01-31 16:21:40,626 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 150 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:40,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:21:40,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-01-31 16:21:40,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 181. [2022-01-31 16:21:40,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5397727272727273) internal successors, (271), 176 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 275 transitions. [2022-01-31 16:21:40,634 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 275 transitions. Word has length 64 [2022-01-31 16:21:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:40,635 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 275 transitions. [2022-01-31 16:21:40,635 INFO L471 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) [2022-01-31 16:21:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 275 transitions. [2022-01-31 16:21:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:21:40,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:40,636 INFO L514 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] [2022-01-31 16:21:40,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:21:40,637 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:40,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1031303024, now seen corresponding path program 1 times [2022-01-31 16:21:40,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:40,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565424554] [2022-01-31 16:21:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:40,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:40,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:40,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565424554] [2022-01-31 16:21:40,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565424554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:40,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:40,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:40,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665350094] [2022-01-31 16:21:40,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:40,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:40,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:40,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:40,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:40,789 INFO L87 Difference]: Start difference. First operand 181 states and 275 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) [2022-01-31 16:21:43,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:44,390 INFO L93 Difference]: Finished difference Result 287 states and 438 transitions. [2022-01-31 16:21:44,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:44,390 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 [2022-01-31 16:21:44,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:44,391 INFO L225 Difference]: With dead ends: 287 [2022-01-31 16:21:44,391 INFO L226 Difference]: Without dead ends: 287 [2022-01-31 16:21:44,392 INFO L932 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 [2022-01-31 16:21:44,392 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 148 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:44,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:21:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-01-31 16:21:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 182. [2022-01-31 16:21:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5254237288135593) internal successors, (270), 177 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 274 transitions. [2022-01-31 16:21:44,398 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 274 transitions. Word has length 64 [2022-01-31 16:21:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:44,398 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 274 transitions. [2022-01-31 16:21:44,398 INFO L471 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) [2022-01-31 16:21:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 274 transitions. [2022-01-31 16:21:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:21:44,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:44,406 INFO L514 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] [2022-01-31 16:21:44,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:21:44,406 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:44,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1335121200, now seen corresponding path program 1 times [2022-01-31 16:21:44,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:44,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044028514] [2022-01-31 16:21:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:44,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:44,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:44,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044028514] [2022-01-31 16:21:44,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044028514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:44,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:44,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:44,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285421811] [2022-01-31 16:21:44,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:44,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:44,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:44,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:44,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:44,529 INFO L87 Difference]: Start difference. First operand 182 states and 274 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) [2022-01-31 16:21:46,647 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 [] [2022-01-31 16:21:47,709 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 [] [2022-01-31 16:21:48,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:48,101 INFO L93 Difference]: Finished difference Result 197 states and 292 transitions. [2022-01-31 16:21:48,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:48,102 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 [2022-01-31 16:21:48,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:48,103 INFO L225 Difference]: With dead ends: 197 [2022-01-31 16:21:48,103 INFO L226 Difference]: Without dead ends: 197 [2022-01-31 16:21:48,103 INFO L932 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 [2022-01-31 16:21:48,103 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:48,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 493 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:21:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-01-31 16:21:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 182. [2022-01-31 16:21:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5197740112994351) internal successors, (269), 177 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 273 transitions. [2022-01-31 16:21:48,116 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 273 transitions. Word has length 64 [2022-01-31 16:21:48,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:48,116 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 273 transitions. [2022-01-31 16:21:48,116 INFO L471 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) [2022-01-31 16:21:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 273 transitions. [2022-01-31 16:21:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:21:48,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:48,117 INFO L514 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] [2022-01-31 16:21:48,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:21:48,118 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash -25859152, now seen corresponding path program 1 times [2022-01-31 16:21:48,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:48,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195403372] [2022-01-31 16:21:48,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:48,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:48,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:48,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195403372] [2022-01-31 16:21:48,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195403372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:48,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:48,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:48,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84626136] [2022-01-31 16:21:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:48,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:48,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:48,230 INFO L87 Difference]: Start difference. First operand 182 states and 273 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) [2022-01-31 16:21:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:51,018 INFO L93 Difference]: Finished difference Result 195 states and 289 transitions. [2022-01-31 16:21:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:51,022 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 [2022-01-31 16:21:51,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:51,023 INFO L225 Difference]: With dead ends: 195 [2022-01-31 16:21:51,023 INFO L226 Difference]: Without dead ends: 195 [2022-01-31 16:21:51,023 INFO L932 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 [2022-01-31 16:21:51,024 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 19 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:51,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 16:21:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-01-31 16:21:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 182. [2022-01-31 16:21:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5141242937853108) internal successors, (268), 177 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 272 transitions. [2022-01-31 16:21:51,028 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 272 transitions. Word has length 64 [2022-01-31 16:21:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:51,028 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 272 transitions. [2022-01-31 16:21:51,029 INFO L471 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) [2022-01-31 16:21:51,029 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 272 transitions. [2022-01-31 16:21:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:21:51,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:51,029 INFO L514 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] [2022-01-31 16:21:51,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:21:51,029 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1757731560, now seen corresponding path program 1 times [2022-01-31 16:21:51,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:51,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826823942] [2022-01-31 16:21:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:51,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:51,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:51,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:51,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826823942] [2022-01-31 16:21:51,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826823942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:51,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:51,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:51,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294315274] [2022-01-31 16:21:51,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:51,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:51,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:51,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:51,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:51,174 INFO L87 Difference]: Start difference. First operand 182 states and 272 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) [2022-01-31 16:21:53,569 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 [] [2022-01-31 16:21:55,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:55,705 INFO L93 Difference]: Finished difference Result 195 states and 288 transitions. [2022-01-31 16:21:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:55,706 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 [2022-01-31 16:21:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:55,707 INFO L225 Difference]: With dead ends: 195 [2022-01-31 16:21:55,707 INFO L226 Difference]: Without dead ends: 195 [2022-01-31 16:21:55,707 INFO L932 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 [2022-01-31 16:21:55,708 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:55,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:21:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-01-31 16:21:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 182. [2022-01-31 16:21:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5084745762711864) internal successors, (267), 177 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 271 transitions. [2022-01-31 16:21:55,714 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 271 transitions. Word has length 65 [2022-01-31 16:21:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:55,714 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 271 transitions. [2022-01-31 16:21:55,714 INFO L471 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) [2022-01-31 16:21:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 271 transitions. [2022-01-31 16:21:55,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 16:21:55,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:55,715 INFO L514 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] [2022-01-31 16:21:55,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:21:55,715 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2096002932, now seen corresponding path program 1 times [2022-01-31 16:21:55,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:55,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030687650] [2022-01-31 16:21:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:55,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:55,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:55,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030687650] [2022-01-31 16:21:55,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030687650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:55,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:55,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:55,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157015546] [2022-01-31 16:21:55,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:55,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:55,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:55,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:55,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:55,863 INFO L87 Difference]: Start difference. First operand 182 states and 271 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) [2022-01-31 16:21:57,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:59,245 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 [] [2022-01-31 16:21:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:59,749 INFO L93 Difference]: Finished difference Result 287 states and 432 transitions. [2022-01-31 16:21:59,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:59,749 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 [2022-01-31 16:21:59,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:59,750 INFO L225 Difference]: With dead ends: 287 [2022-01-31 16:21:59,750 INFO L226 Difference]: Without dead ends: 287 [2022-01-31 16:21:59,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:59,751 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 145 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:59,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:21:59,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-01-31 16:21:59,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 184. [2022-01-31 16:21:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.4972067039106145) internal successors, (268), 179 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 272 transitions. [2022-01-31 16:21:59,755 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 272 transitions. Word has length 66 [2022-01-31 16:21:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:59,755 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 272 transitions. [2022-01-31 16:21:59,755 INFO L471 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) [2022-01-31 16:21:59,755 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 272 transitions. [2022-01-31 16:21:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:21:59,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:59,756 INFO L514 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] [2022-01-31 16:21:59,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:21:59,756 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1315364651, now seen corresponding path program 1 times [2022-01-31 16:21:59,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:59,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505336367] [2022-01-31 16:21:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:59,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:59,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:59,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:59,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505336367] [2022-01-31 16:21:59,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505336367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:59,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:59,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:59,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73692096] [2022-01-31 16:21:59,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:59,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:59,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:59,982 INFO L87 Difference]: Start difference. First operand 184 states and 272 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) [2022-01-31 16:22:03,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:03,531 INFO L93 Difference]: Finished difference Result 187 states and 275 transitions. [2022-01-31 16:22:03,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:03,532 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 [2022-01-31 16:22:03,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:03,533 INFO L225 Difference]: With dead ends: 187 [2022-01-31 16:22:03,533 INFO L226 Difference]: Without dead ends: 187 [2022-01-31 16:22:03,533 INFO L932 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 [2022-01-31 16:22:03,534 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 11 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:03,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 511 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:22:03,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-01-31 16:22:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2022-01-31 16:22:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.4916201117318435) internal successors, (267), 179 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:03,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 271 transitions. [2022-01-31 16:22:03,539 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 271 transitions. Word has length 67 [2022-01-31 16:22:03,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:03,539 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 271 transitions. [2022-01-31 16:22:03,539 INFO L471 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) [2022-01-31 16:22:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 271 transitions. [2022-01-31 16:22:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:22:03,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:03,540 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:03,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:22:03,540 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:03,540 INFO L85 PathProgramCache]: Analyzing trace with hash 972914138, now seen corresponding path program 1 times [2022-01-31 16:22:03,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:03,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331465387] [2022-01-31 16:22:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:03,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:03,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:03,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:03,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331465387] [2022-01-31 16:22:03,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331465387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:03,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:03,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:03,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608977115] [2022-01-31 16:22:03,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:03,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:03,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:03,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:03,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:03,652 INFO L87 Difference]: Start difference. First operand 184 states and 271 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) [2022-01-31 16:22:06,976 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 [] [2022-01-31 16:22:08,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:08,682 INFO L93 Difference]: Finished difference Result 226 states and 331 transitions. [2022-01-31 16:22:08,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:08,686 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 [2022-01-31 16:22:08,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:08,687 INFO L225 Difference]: With dead ends: 226 [2022-01-31 16:22:08,687 INFO L226 Difference]: Without dead ends: 226 [2022-01-31 16:22:08,687 INFO L932 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 [2022-01-31 16:22:08,688 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 30 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:08,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 511 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 16:22:08,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-01-31 16:22:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 206. [2022-01-31 16:22:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.4975124378109452) internal successors, (301), 201 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 305 transitions. [2022-01-31 16:22:08,692 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 305 transitions. Word has length 67 [2022-01-31 16:22:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:08,693 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 305 transitions. [2022-01-31 16:22:08,693 INFO L471 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) [2022-01-31 16:22:08,693 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 305 transitions. [2022-01-31 16:22:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-31 16:22:08,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:08,694 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:08,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:22:08,694 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:08,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:08,694 INFO L85 PathProgramCache]: Analyzing trace with hash -230336556, now seen corresponding path program 1 times [2022-01-31 16:22:08,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:08,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075012109] [2022-01-31 16:22:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:08,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:08,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:08,882 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:08,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:08,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075012109] [2022-01-31 16:22:08,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075012109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:08,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:08,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:08,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024685773] [2022-01-31 16:22:08,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:08,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:08,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:08,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:08,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:08,884 INFO L87 Difference]: Start difference. First operand 206 states and 305 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:11,939 INFO L93 Difference]: Finished difference Result 225 states and 329 transitions. [2022-01-31 16:22:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:11,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-01-31 16:22:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:11,940 INFO L225 Difference]: With dead ends: 225 [2022-01-31 16:22:11,941 INFO L226 Difference]: Without dead ends: 225 [2022-01-31 16:22:11,941 INFO L932 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 [2022-01-31 16:22:11,941 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 33 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:11,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 513 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 16:22:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-01-31 16:22:11,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 206. [2022-01-31 16:22:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.492537313432836) internal successors, (300), 201 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) [2022-01-31 16:22:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 304 transitions. [2022-01-31 16:22:11,945 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 304 transitions. Word has length 81 [2022-01-31 16:22:11,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:11,945 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 304 transitions. [2022-01-31 16:22:11,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:11,945 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 304 transitions. [2022-01-31 16:22:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-31 16:22:11,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:11,946 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:11,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:22:11,946 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:11,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:11,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1078925492, now seen corresponding path program 1 times [2022-01-31 16:22:11,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:11,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180970029] [2022-01-31 16:22:11,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:11,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:12,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:12,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180970029] [2022-01-31 16:22:12,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180970029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:12,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:12,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:12,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776970392] [2022-01-31 16:22:12,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:12,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:12,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:12,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:12,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:12,029 INFO L87 Difference]: Start difference. First operand 206 states and 304 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:14,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:16,248 INFO L93 Difference]: Finished difference Result 223 states and 326 transitions. [2022-01-31 16:22:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:16,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-01-31 16:22:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:16,249 INFO L225 Difference]: With dead ends: 223 [2022-01-31 16:22:16,249 INFO L226 Difference]: Without dead ends: 223 [2022-01-31 16:22:16,249 INFO L932 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 [2022-01-31 16:22:16,250 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 33 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:16,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:22:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-01-31 16:22:16,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 206. [2022-01-31 16:22:16,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.4875621890547264) internal successors, (299), 201 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 303 transitions. [2022-01-31 16:22:16,253 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 303 transitions. Word has length 81 [2022-01-31 16:22:16,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:16,253 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 303 transitions. [2022-01-31 16:22:16,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:16,253 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 303 transitions. [2022-01-31 16:22:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 16:22:16,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:16,254 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:16,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:22:16,254 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:16,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:16,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1646317156, now seen corresponding path program 1 times [2022-01-31 16:22:16,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:16,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533079017] [2022-01-31 16:22:16,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:16,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-31 16:22:16,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:16,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533079017] [2022-01-31 16:22:16,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533079017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:16,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:16,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:16,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125117880] [2022-01-31 16:22:16,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:16,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:16,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:16,351 INFO L87 Difference]: Start difference. First operand 206 states and 303 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:18,772 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 [] [2022-01-31 16:22:19,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:19,998 INFO L93 Difference]: Finished difference Result 220 states and 321 transitions. [2022-01-31 16:22:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:19,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-01-31 16:22:19,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:19,999 INFO L225 Difference]: With dead ends: 220 [2022-01-31 16:22:19,999 INFO L226 Difference]: Without dead ends: 220 [2022-01-31 16:22:19,999 INFO L932 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 [2022-01-31 16:22:20,000 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 19 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:20,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 574 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:22:20,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-01-31 16:22:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 208. [2022-01-31 16:22:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.4876847290640394) internal successors, (302), 203 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 306 transitions. [2022-01-31 16:22:20,004 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 306 transitions. Word has length 82 [2022-01-31 16:22:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:20,004 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 306 transitions. [2022-01-31 16:22:20,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 306 transitions. [2022-01-31 16:22:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 16:22:20,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:20,005 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:20,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:22:20,005 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:20,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:20,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2019421135, now seen corresponding path program 1 times [2022-01-31 16:22:20,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:20,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834515799] [2022-01-31 16:22:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:20,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:20,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:20,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834515799] [2022-01-31 16:22:20,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834515799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:20,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:20,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:20,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358037378] [2022-01-31 16:22:20,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:20,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:20,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:20,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:20,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:20,137 INFO L87 Difference]: Start difference. First operand 208 states and 306 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) [2022-01-31 16:22:21,733 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 [] [2022-01-31 16:22:24,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:24,237 INFO L93 Difference]: Finished difference Result 309 states and 459 transitions. [2022-01-31 16:22:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:24,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-01-31 16:22:24,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:24,239 INFO L225 Difference]: With dead ends: 309 [2022-01-31 16:22:24,239 INFO L226 Difference]: Without dead ends: 309 [2022-01-31 16:22:24,239 INFO L932 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 [2022-01-31 16:22:24,239 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 146 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:24,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:22:24,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-01-31 16:22:24,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 208. [2022-01-31 16:22:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.4729064039408868) internal successors, (299), 203 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 303 transitions. [2022-01-31 16:22:24,243 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 303 transitions. Word has length 83 [2022-01-31 16:22:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:24,244 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 303 transitions. [2022-01-31 16:22:24,244 INFO L471 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) [2022-01-31 16:22:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 303 transitions. [2022-01-31 16:22:24,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-31 16:22:24,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:24,245 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:24,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:22:24,245 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:24,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:24,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1213038316, now seen corresponding path program 1 times [2022-01-31 16:22:24,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:24,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580365008] [2022-01-31 16:22:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:24,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:24,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:24,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580365008] [2022-01-31 16:22:24,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580365008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:24,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:24,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:24,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239311619] [2022-01-31 16:22:24,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:24,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:24,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:24,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:24,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:24,411 INFO L87 Difference]: Start difference. First operand 208 states and 303 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:27,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:27,711 INFO L93 Difference]: Finished difference Result 299 states and 443 transitions. [2022-01-31 16:22:27,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:27,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-01-31 16:22:27,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:27,712 INFO L225 Difference]: With dead ends: 299 [2022-01-31 16:22:27,712 INFO L226 Difference]: Without dead ends: 299 [2022-01-31 16:22:27,713 INFO L932 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 [2022-01-31 16:22:27,713 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 136 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:27,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 366 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:22:27,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-01-31 16:22:27,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 208. [2022-01-31 16:22:27,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.458128078817734) internal successors, (296), 203 states have internal predecessors, (296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 300 transitions. [2022-01-31 16:22:27,718 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 300 transitions. Word has length 85 [2022-01-31 16:22:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:27,718 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 300 transitions. [2022-01-31 16:22:27,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 300 transitions. [2022-01-31 16:22:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-31 16:22:27,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:27,719 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:27,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:22:27,719 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash 733553435, now seen corresponding path program 1 times [2022-01-31 16:22:27,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:27,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702467647] [2022-01-31 16:22:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:27,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:27,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:27,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702467647] [2022-01-31 16:22:27,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702467647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:27,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:27,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:27,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339931000] [2022-01-31 16:22:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:27,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:27,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:27,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:27,843 INFO L87 Difference]: Start difference. First operand 208 states and 300 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:29,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:31,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:31,735 INFO L93 Difference]: Finished difference Result 305 states and 446 transitions. [2022-01-31 16:22:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:31,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-01-31 16:22:31,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:31,736 INFO L225 Difference]: With dead ends: 305 [2022-01-31 16:22:31,736 INFO L226 Difference]: Without dead ends: 305 [2022-01-31 16:22:31,737 INFO L932 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 [2022-01-31 16:22:31,737 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 84 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:31,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 499 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:22:31,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-31 16:22:31,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 249. [2022-01-31 16:22:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.4918032786885247) internal successors, (364), 244 states have internal predecessors, (364), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 368 transitions. [2022-01-31 16:22:31,741 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 368 transitions. Word has length 89 [2022-01-31 16:22:31,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:31,741 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 368 transitions. [2022-01-31 16:22:31,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:31,741 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 368 transitions. [2022-01-31 16:22:31,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-31 16:22:31,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:31,742 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:31,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:22:31,742 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:31,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:31,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1202106852, now seen corresponding path program 1 times [2022-01-31 16:22:31,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:31,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091648995] [2022-01-31 16:22:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:31,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:31,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:31,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:31,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091648995] [2022-01-31 16:22:31,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091648995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:31,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:31,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:31,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926549480] [2022-01-31 16:22:31,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:31,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:31,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:31,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:31,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:31,864 INFO L87 Difference]: Start difference. First operand 249 states and 368 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:32,934 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 [] [2022-01-31 16:22:34,952 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 [] [2022-01-31 16:22:36,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:36,769 INFO L93 Difference]: Finished difference Result 357 states and 532 transitions. [2022-01-31 16:22:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:36,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-01-31 16:22:36,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:36,771 INFO L225 Difference]: With dead ends: 357 [2022-01-31 16:22:36,771 INFO L226 Difference]: Without dead ends: 357 [2022-01-31 16:22:36,771 INFO L932 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 [2022-01-31 16:22:36,771 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 111 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:36,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 368 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 16:22:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-01-31 16:22:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 248. [2022-01-31 16:22:36,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.4938271604938271) internal successors, (363), 243 states have internal predecessors, (363), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 367 transitions. [2022-01-31 16:22:36,775 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 367 transitions. Word has length 89 [2022-01-31 16:22:36,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:36,775 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 367 transitions. [2022-01-31 16:22:36,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:36,776 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 367 transitions. [2022-01-31 16:22:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-31 16:22:36,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:36,776 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:36,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:22:36,776 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:36,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:36,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2117392348, now seen corresponding path program 1 times [2022-01-31 16:22:36,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:36,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204878327] [2022-01-31 16:22:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:36,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:36,888 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:36,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:36,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204878327] [2022-01-31 16:22:36,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204878327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:36,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:36,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:36,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741615176] [2022-01-31 16:22:36,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:36,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:36,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:36,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:36,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:36,889 INFO L87 Difference]: Start difference. First operand 248 states and 367 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:39,209 INFO L93 Difference]: Finished difference Result 337 states and 501 transitions. [2022-01-31 16:22:39,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:39,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-01-31 16:22:39,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:39,211 INFO L225 Difference]: With dead ends: 337 [2022-01-31 16:22:39,211 INFO L226 Difference]: Without dead ends: 337 [2022-01-31 16:22:39,211 INFO L932 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 [2022-01-31 16:22:39,211 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 73 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:39,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 483 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:22:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-01-31 16:22:39,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 290. [2022-01-31 16:22:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 285 states have (on average 1.5157894736842106) internal successors, (432), 285 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) [2022-01-31 16:22:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 436 transitions. [2022-01-31 16:22:39,215 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 436 transitions. Word has length 90 [2022-01-31 16:22:39,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:39,216 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 436 transitions. [2022-01-31 16:22:39,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 436 transitions. [2022-01-31 16:22:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-31 16:22:39,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:39,216 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:39,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:22:39,217 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1993319101, now seen corresponding path program 1 times [2022-01-31 16:22:39,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:39,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888248938] [2022-01-31 16:22:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:39,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:39,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:39,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888248938] [2022-01-31 16:22:39,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888248938] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:39,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:39,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:39,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497090822] [2022-01-31 16:22:39,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:39,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:39,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:39,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:39,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:39,319 INFO L87 Difference]: Start difference. First operand 290 states and 436 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:40,554 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 [] [2022-01-31 16:22:43,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:44,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:45,240 INFO L93 Difference]: Finished difference Result 328 states and 490 transitions. [2022-01-31 16:22:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:45,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-01-31 16:22:45,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:45,242 INFO L225 Difference]: With dead ends: 328 [2022-01-31 16:22:45,242 INFO L226 Difference]: Without dead ends: 328 [2022-01-31 16:22:45,242 INFO L932 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 [2022-01-31 16:22:45,243 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 27 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:45,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 593 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 16:22:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-01-31 16:22:45,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 314. [2022-01-31 16:22:45,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5145631067961165) internal successors, (468), 309 states have internal predecessors, (468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:45,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 472 transitions. [2022-01-31 16:22:45,247 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 472 transitions. Word has length 90 [2022-01-31 16:22:45,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:45,247 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 472 transitions. [2022-01-31 16:22:45,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 472 transitions. [2022-01-31 16:22:45,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-31 16:22:45,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:45,248 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:45,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:22:45,248 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:45,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash -676029654, now seen corresponding path program 1 times [2022-01-31 16:22:45,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:45,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688612039] [2022-01-31 16:22:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:45,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:45,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:45,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:45,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688612039] [2022-01-31 16:22:45,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688612039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:45,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:45,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:45,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712294713] [2022-01-31 16:22:45,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:45,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:45,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:45,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:45,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:45,352 INFO L87 Difference]: Start difference. First operand 314 states and 472 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:47,178 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 [] [2022-01-31 16:22:49,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:49,437 INFO L93 Difference]: Finished difference Result 404 states and 610 transitions. [2022-01-31 16:22:49,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:49,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-01-31 16:22:49,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:49,439 INFO L225 Difference]: With dead ends: 404 [2022-01-31 16:22:49,439 INFO L226 Difference]: Without dead ends: 404 [2022-01-31 16:22:49,439 INFO L932 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 [2022-01-31 16:22:49,439 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 132 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:49,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 370 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:22:49,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-01-31 16:22:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 316. [2022-01-31 16:22:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.504823151125402) internal successors, (468), 311 states have internal predecessors, (468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:49,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 472 transitions. [2022-01-31 16:22:49,444 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 472 transitions. Word has length 104 [2022-01-31 16:22:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:49,444 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 472 transitions. [2022-01-31 16:22:49,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:49,445 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 472 transitions. [2022-01-31 16:22:49,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-31 16:22:49,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:49,445 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:49,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:22:49,446 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:49,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:49,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1256388170, now seen corresponding path program 1 times [2022-01-31 16:22:49,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:49,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222856184] [2022-01-31 16:22:49,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:49,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:49,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:49,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:49,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222856184] [2022-01-31 16:22:49,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222856184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:49,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:49,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:49,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891186732] [2022-01-31 16:22:49,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:49,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:49,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:49,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:49,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:49,534 INFO L87 Difference]: Start difference. First operand 316 states and 472 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:51,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:52,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:54,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:55,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:55,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:55,714 INFO L93 Difference]: Finished difference Result 404 states and 606 transitions. [2022-01-31 16:22:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:55,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-01-31 16:22:55,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:55,715 INFO L225 Difference]: With dead ends: 404 [2022-01-31 16:22:55,715 INFO L226 Difference]: Without dead ends: 404 [2022-01-31 16:22:55,716 INFO L932 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 [2022-01-31 16:22:55,716 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 132 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:55,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 374 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:22:55,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-01-31 16:22:55,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 316. [2022-01-31 16:22:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.4919614147909968) internal successors, (464), 311 states have internal predecessors, (464), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 468 transitions. [2022-01-31 16:22:55,721 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 468 transitions. Word has length 104 [2022-01-31 16:22:55,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:55,721 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 468 transitions. [2022-01-31 16:22:55,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:55,721 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 468 transitions. [2022-01-31 16:22:55,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 16:22:55,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:55,722 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:55,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:22:55,722 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1066855646, now seen corresponding path program 1 times [2022-01-31 16:22:55,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:55,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541711791] [2022-01-31 16:22:55,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:55,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:55,825 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:55,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:55,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541711791] [2022-01-31 16:22:55,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541711791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:55,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:55,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:55,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824233856] [2022-01-31 16:22:55,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:55,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:55,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:55,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:55,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:55,827 INFO L87 Difference]: Start difference. First operand 316 states and 468 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) [2022-01-31 16:22:58,259 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 [] [2022-01-31 16:22:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:59,113 INFO L93 Difference]: Finished difference Result 404 states and 603 transitions. [2022-01-31 16:22:59,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:59,113 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 112 [2022-01-31 16:22:59,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:59,114 INFO L225 Difference]: With dead ends: 404 [2022-01-31 16:22:59,114 INFO L226 Difference]: Without dead ends: 404 [2022-01-31 16:22:59,114 INFO L932 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 [2022-01-31 16:22:59,115 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 124 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:59,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 384 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:22:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-01-31 16:22:59,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 322. [2022-01-31 16:22:59,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.4921135646687698) internal successors, (473), 317 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:59,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 477 transitions. [2022-01-31 16:22:59,119 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 477 transitions. Word has length 112 [2022-01-31 16:22:59,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:59,119 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 477 transitions. [2022-01-31 16:22:59,119 INFO L471 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) [2022-01-31 16:22:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 477 transitions. [2022-01-31 16:22:59,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 16:22:59,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:59,120 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:59,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:22:59,120 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:59,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:59,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1053431553, now seen corresponding path program 1 times [2022-01-31 16:22:59,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:59,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969925434] [2022-01-31 16:22:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:59,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:59,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:22:59,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:59,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969925434] [2022-01-31 16:22:59,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969925434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:59,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:59,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:22:59,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743247314] [2022-01-31 16:22:59,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:59,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:22:59,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:59,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:22:59,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:22:59,199 INFO L87 Difference]: Start difference. First operand 322 states and 477 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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) [2022-01-31 16:23:01,930 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 [] [2022-01-31 16:23:02,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:02,771 INFO L93 Difference]: Finished difference Result 612 states and 908 transitions. [2022-01-31 16:23:02,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:02,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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 112 [2022-01-31 16:23:02,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:02,773 INFO L225 Difference]: With dead ends: 612 [2022-01-31 16:23:02,773 INFO L226 Difference]: Without dead ends: 612 [2022-01-31 16:23:02,773 INFO L932 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 [2022-01-31 16:23:02,773 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:02,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 442 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:23:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-01-31 16:23:02,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2022-01-31 16:23:02,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 607 states have (on average 1.4892915980230643) internal successors, (904), 607 states have internal predecessors, (904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:02,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 908 transitions. [2022-01-31 16:23:02,786 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 908 transitions. Word has length 112 [2022-01-31 16:23:02,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:02,786 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 908 transitions. [2022-01-31 16:23:02,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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) [2022-01-31 16:23:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 908 transitions. [2022-01-31 16:23:02,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 16:23:02,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:02,787 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:02,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:23:02,788 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:02,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1460035808, now seen corresponding path program 1 times [2022-01-31 16:23:02,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:02,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087729249] [2022-01-31 16:23:02,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:02,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-31 16:23:02,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:02,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087729249] [2022-01-31 16:23:02,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087729249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:02,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:02,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:02,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331571776] [2022-01-31 16:23:02,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:02,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:02,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:02,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:02,912 INFO L87 Difference]: Start difference. First operand 612 states and 908 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:04,289 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 [] [2022-01-31 16:23:05,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:07,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:07,626 INFO L93 Difference]: Finished difference Result 639 states and 943 transitions. [2022-01-31 16:23:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:07,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-01-31 16:23:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:07,628 INFO L225 Difference]: With dead ends: 639 [2022-01-31 16:23:07,628 INFO L226 Difference]: Without dead ends: 639 [2022-01-31 16:23:07,628 INFO L932 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 [2022-01-31 16:23:07,629 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:07,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 419 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-01-31 16:23:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-01-31 16:23:07,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2022-01-31 16:23:07,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 634 states have (on average 1.4810725552050472) internal successors, (939), 634 states have internal predecessors, (939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 943 transitions. [2022-01-31 16:23:07,635 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 943 transitions. Word has length 112 [2022-01-31 16:23:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:07,635 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 943 transitions. [2022-01-31 16:23:07,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 943 transitions. [2022-01-31 16:23:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 16:23:07,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:07,637 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:07,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:23:07,637 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:07,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash -291839553, now seen corresponding path program 1 times [2022-01-31 16:23:07,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:07,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716450809] [2022-01-31 16:23:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:07,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-01-31 16:23:07,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:07,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716450809] [2022-01-31 16:23:07,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716450809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:07,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:07,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:07,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303117927] [2022-01-31 16:23:07,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:07,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:07,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:07,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:07,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:07,702 INFO L87 Difference]: Start difference. First operand 639 states and 943 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:11,116 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 [] [2022-01-31 16:23:11,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:11,330 INFO L93 Difference]: Finished difference Result 641 states and 945 transitions. [2022-01-31 16:23:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:11,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 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 112 [2022-01-31 16:23:11,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:11,332 INFO L225 Difference]: With dead ends: 641 [2022-01-31 16:23:11,332 INFO L226 Difference]: Without dead ends: 641 [2022-01-31 16:23:11,332 INFO L932 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 [2022-01-31 16:23:11,332 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:11,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 398 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:23:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-01-31 16:23:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2022-01-31 16:23:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 636 states have (on average 1.479559748427673) internal successors, (941), 636 states have internal predecessors, (941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:11,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 945 transitions. [2022-01-31 16:23:11,343 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 945 transitions. Word has length 112 [2022-01-31 16:23:11,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:11,343 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 945 transitions. [2022-01-31 16:23:11,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:11,344 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 945 transitions. [2022-01-31 16:23:11,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-31 16:23:11,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:11,345 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:11,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:23:11,345 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:11,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:11,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1637338007, now seen corresponding path program 1 times [2022-01-31 16:23:11,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:11,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542444820] [2022-01-31 16:23:11,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:11,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:11,433 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:11,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:11,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542444820] [2022-01-31 16:23:11,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542444820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:11,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:11,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:11,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225153651] [2022-01-31 16:23:11,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:11,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:11,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:11,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:11,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:11,434 INFO L87 Difference]: Start difference. First operand 641 states and 945 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:12,806 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 [] [2022-01-31 16:23:15,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:16,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:16,684 INFO L93 Difference]: Finished difference Result 728 states and 1075 transitions. [2022-01-31 16:23:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:16,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-01-31 16:23:16,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:16,687 INFO L225 Difference]: With dead ends: 728 [2022-01-31 16:23:16,687 INFO L226 Difference]: Without dead ends: 728 [2022-01-31 16:23:16,687 INFO L932 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 [2022-01-31 16:23:16,687 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 70 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:16,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 654 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:23:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-01-31 16:23:16,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 641. [2022-01-31 16:23:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 636 states have (on average 1.479559748427673) internal successors, (941), 636 states have internal predecessors, (941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 945 transitions. [2022-01-31 16:23:16,694 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 945 transitions. Word has length 131 [2022-01-31 16:23:16,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:16,694 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 945 transitions. [2022-01-31 16:23:16,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 945 transitions. [2022-01-31 16:23:16,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 16:23:16,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:16,704 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:16,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:23:16,704 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1649191585, now seen corresponding path program 1 times [2022-01-31 16:23:16,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:16,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994541757] [2022-01-31 16:23:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:16,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:16,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:16,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:16,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994541757] [2022-01-31 16:23:16,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994541757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:16,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:16,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:16,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164915377] [2022-01-31 16:23:16,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:16,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:16,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:16,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:16,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:16,814 INFO L87 Difference]: Start difference. First operand 641 states and 945 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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) [2022-01-31 16:23:18,226 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 [] [2022-01-31 16:23:21,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:21,008 INFO L93 Difference]: Finished difference Result 804 states and 1183 transitions. [2022-01-31 16:23:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:21,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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 154 [2022-01-31 16:23:21,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:21,011 INFO L225 Difference]: With dead ends: 804 [2022-01-31 16:23:21,011 INFO L226 Difference]: Without dead ends: 804 [2022-01-31 16:23:21,011 INFO L932 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 [2022-01-31 16:23:21,011 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 122 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:21,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 374 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:23:21,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-01-31 16:23:21,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 643. [2022-01-31 16:23:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 638 states have (on average 1.4717868338557993) internal successors, (939), 638 states have internal predecessors, (939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 943 transitions. [2022-01-31 16:23:21,019 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 943 transitions. Word has length 154 [2022-01-31 16:23:21,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:21,020 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 943 transitions. [2022-01-31 16:23:21,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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) [2022-01-31 16:23:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 943 transitions. [2022-01-31 16:23:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-31 16:23:21,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:21,021 INFO L514 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, 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] [2022-01-31 16:23:21,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:23:21,021 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:21,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:21,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1016371692, now seen corresponding path program 1 times [2022-01-31 16:23:21,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:21,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506601225] [2022-01-31 16:23:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:21,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:21,133 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:21,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:21,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506601225] [2022-01-31 16:23:21,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506601225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:21,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:21,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:21,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351988883] [2022-01-31 16:23:21,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:21,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:21,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:21,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:21,135 INFO L87 Difference]: Start difference. First operand 643 states and 943 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:23,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:24,273 INFO L93 Difference]: Finished difference Result 726 states and 1066 transitions. [2022-01-31 16:23:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:24,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-01-31 16:23:24,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:24,275 INFO L225 Difference]: With dead ends: 726 [2022-01-31 16:23:24,275 INFO L226 Difference]: Without dead ends: 726 [2022-01-31 16:23:24,276 INFO L932 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 [2022-01-31 16:23:24,276 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 76 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:24,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 644 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:23:24,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-01-31 16:23:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 671. [2022-01-31 16:23:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 666 states have (on average 1.46996996996997) internal successors, (979), 666 states have internal predecessors, (979), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 983 transitions. [2022-01-31 16:23:24,282 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 983 transitions. Word has length 156 [2022-01-31 16:23:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:24,283 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 983 transitions. [2022-01-31 16:23:24,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 983 transitions. [2022-01-31 16:23:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-31 16:23:24,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:24,284 INFO L514 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, 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] [2022-01-31 16:23:24,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:23:24,284 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 844647905, now seen corresponding path program 1 times [2022-01-31 16:23:24,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851348432] [2022-01-31 16:23:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:24,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:24,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:24,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851348432] [2022-01-31 16:23:24,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851348432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:24,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:24,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:24,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118366790] [2022-01-31 16:23:24,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:24,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:24,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:24,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:24,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:24,369 INFO L87 Difference]: Start difference. First operand 671 states and 983 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:25,537 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 [] [2022-01-31 16:23:27,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:27,490 INFO L93 Difference]: Finished difference Result 832 states and 1217 transitions. [2022-01-31 16:23:27,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:27,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-01-31 16:23:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:27,494 INFO L225 Difference]: With dead ends: 832 [2022-01-31 16:23:27,494 INFO L226 Difference]: Without dead ends: 832 [2022-01-31 16:23:27,494 INFO L932 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 [2022-01-31 16:23:27,495 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 117 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:27,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 374 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:23:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-01-31 16:23:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 679. [2022-01-31 16:23:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 674 states have (on average 1.467359050445104) internal successors, (989), 674 states have internal predecessors, (989), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 993 transitions. [2022-01-31 16:23:27,519 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 993 transitions. Word has length 157 [2022-01-31 16:23:27,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:27,519 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 993 transitions. [2022-01-31 16:23:27,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 993 transitions. [2022-01-31 16:23:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-31 16:23:27,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:27,520 INFO L514 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, 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] [2022-01-31 16:23:27,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 16:23:27,520 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:27,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:27,521 INFO L85 PathProgramCache]: Analyzing trace with hash 738183639, now seen corresponding path program 1 times [2022-01-31 16:23:27,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:27,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8925757] [2022-01-31 16:23:27,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:27,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:27,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:27,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8925757] [2022-01-31 16:23:27,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8925757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:27,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:27,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:27,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501063172] [2022-01-31 16:23:27,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:27,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:27,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:27,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:27,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:27,650 INFO L87 Difference]: Start difference. First operand 679 states and 993 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:29,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:30,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:31,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:32,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:32,136 INFO L93 Difference]: Finished difference Result 726 states and 1061 transitions. [2022-01-31 16:23:32,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:32,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-01-31 16:23:32,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:32,138 INFO L225 Difference]: With dead ends: 726 [2022-01-31 16:23:32,138 INFO L226 Difference]: Without dead ends: 726 [2022-01-31 16:23:32,139 INFO L932 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 [2022-01-31 16:23:32,139 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 63 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:32,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 632 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:23:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-01-31 16:23:32,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 681. [2022-01-31 16:23:32,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 676 states have (on average 1.4659763313609468) internal successors, (991), 676 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 995 transitions. [2022-01-31 16:23:32,161 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 995 transitions. Word has length 158 [2022-01-31 16:23:32,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:32,161 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 995 transitions. [2022-01-31 16:23:32,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 995 transitions. [2022-01-31 16:23:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-31 16:23:32,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:32,162 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:32,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 16:23:32,163 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:32,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:32,163 INFO L85 PathProgramCache]: Analyzing trace with hash -276622805, now seen corresponding path program 1 times [2022-01-31 16:23:32,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:32,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29162011] [2022-01-31 16:23:32,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:32,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:32,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:32,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:32,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29162011] [2022-01-31 16:23:32,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29162011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:32,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:32,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:32,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447975950] [2022-01-31 16:23:32,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:32,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:32,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:32,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:32,259 INFO L87 Difference]: Start difference. First operand 681 states and 995 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:34,895 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 [] [2022-01-31 16:23:36,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:36,470 INFO L93 Difference]: Finished difference Result 726 states and 1060 transitions. [2022-01-31 16:23:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:36,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-01-31 16:23:36,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:36,472 INFO L225 Difference]: With dead ends: 726 [2022-01-31 16:23:36,472 INFO L226 Difference]: Without dead ends: 726 [2022-01-31 16:23:36,472 INFO L932 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 [2022-01-31 16:23:36,473 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 66 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:36,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 630 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:23:36,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-01-31 16:23:36,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 681. [2022-01-31 16:23:36,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 676 states have (on average 1.4644970414201184) internal successors, (990), 676 states have internal predecessors, (990), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:36,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 994 transitions. [2022-01-31 16:23:36,479 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 994 transitions. Word has length 159 [2022-01-31 16:23:36,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:36,479 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 994 transitions. [2022-01-31 16:23:36,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:36,480 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 994 transitions. [2022-01-31 16:23:36,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-31 16:23:36,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:36,481 INFO L514 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, 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] [2022-01-31 16:23:36,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:23:36,481 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:36,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:36,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2067546830, now seen corresponding path program 1 times [2022-01-31 16:23:36,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:36,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600153105] [2022-01-31 16:23:36,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:36,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:36,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:36,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600153105] [2022-01-31 16:23:36,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600153105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:36,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:36,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:36,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307568762] [2022-01-31 16:23:36,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:36,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:36,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:36,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:36,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:36,589 INFO L87 Difference]: Start difference. First operand 681 states and 994 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:39,693 INFO L93 Difference]: Finished difference Result 724 states and 1057 transitions. [2022-01-31 16:23:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:39,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-01-31 16:23:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:39,695 INFO L225 Difference]: With dead ends: 724 [2022-01-31 16:23:39,695 INFO L226 Difference]: Without dead ends: 724 [2022-01-31 16:23:39,695 INFO L932 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 [2022-01-31 16:23:39,695 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 59 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:39,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 626 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:23:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-01-31 16:23:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 682. [2022-01-31 16:23:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 677 states have (on average 1.463810930576071) internal successors, (991), 677 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:39,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 995 transitions. [2022-01-31 16:23:39,701 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 995 transitions. Word has length 159 [2022-01-31 16:23:39,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:39,701 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 995 transitions. [2022-01-31 16:23:39,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:39,702 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 995 transitions. [2022-01-31 16:23:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-31 16:23:39,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:39,703 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:39,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 16:23:39,703 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:39,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1209469214, now seen corresponding path program 1 times [2022-01-31 16:23:39,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:39,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737214848] [2022-01-31 16:23:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:39,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:39,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:39,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737214848] [2022-01-31 16:23:39,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737214848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:39,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:39,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:39,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79143839] [2022-01-31 16:23:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:39,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:39,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:39,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:39,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:39,842 INFO L87 Difference]: Start difference. First operand 682 states and 995 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:42,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:42,134 INFO L93 Difference]: Finished difference Result 965 states and 1411 transitions. [2022-01-31 16:23:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-01-31 16:23:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:42,137 INFO L225 Difference]: With dead ends: 965 [2022-01-31 16:23:42,137 INFO L226 Difference]: Without dead ends: 965 [2022-01-31 16:23:42,137 INFO L932 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 [2022-01-31 16:23:42,137 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 112 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:42,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 384 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:23:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2022-01-31 16:23:42,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 810. [2022-01-31 16:23:42,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 805 states have (on average 1.462111801242236) internal successors, (1177), 805 states have internal predecessors, (1177), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1181 transitions. [2022-01-31 16:23:42,145 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1181 transitions. Word has length 159 [2022-01-31 16:23:42,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:42,145 INFO L470 AbstractCegarLoop]: Abstraction has 810 states and 1181 transitions. [2022-01-31 16:23:42,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1181 transitions. [2022-01-31 16:23:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-31 16:23:42,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:42,147 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:42,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 16:23:42,147 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash 350686870, now seen corresponding path program 1 times [2022-01-31 16:23:42,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:42,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172075615] [2022-01-31 16:23:42,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:42,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:42,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:42,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172075615] [2022-01-31 16:23:42,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172075615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:42,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:42,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:42,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930766122] [2022-01-31 16:23:42,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:42,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:42,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:42,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:42,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:42,238 INFO L87 Difference]: Start difference. First operand 810 states and 1181 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:44,534 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 [] [2022-01-31 16:23:45,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:45,720 INFO L93 Difference]: Finished difference Result 963 states and 1394 transitions. [2022-01-31 16:23:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:45,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-01-31 16:23:45,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:45,723 INFO L225 Difference]: With dead ends: 963 [2022-01-31 16:23:45,723 INFO L226 Difference]: Without dead ends: 963 [2022-01-31 16:23:45,723 INFO L932 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 [2022-01-31 16:23:45,723 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:45,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:23:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-01-31 16:23:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 810. [2022-01-31 16:23:45,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 805 states have (on average 1.448447204968944) internal successors, (1166), 805 states have internal predecessors, (1166), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:45,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1170 transitions. [2022-01-31 16:23:45,745 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1170 transitions. Word has length 160 [2022-01-31 16:23:45,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:45,745 INFO L470 AbstractCegarLoop]: Abstraction has 810 states and 1170 transitions. [2022-01-31 16:23:45,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:45,746 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1170 transitions. [2022-01-31 16:23:45,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-31 16:23:45,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:45,747 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:45,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 16:23:45,747 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:45,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1895720281, now seen corresponding path program 1 times [2022-01-31 16:23:45,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:45,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662067756] [2022-01-31 16:23:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:45,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:45,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:45,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662067756] [2022-01-31 16:23:45,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662067756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:45,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:45,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:45,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438570615] [2022-01-31 16:23:45,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:45,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:45,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:45,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:45,834 INFO L87 Difference]: Start difference. First operand 810 states and 1170 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:47,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:48,397 INFO L93 Difference]: Finished difference Result 1041 states and 1508 transitions. [2022-01-31 16:23:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:48,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-01-31 16:23:48,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:48,399 INFO L225 Difference]: With dead ends: 1041 [2022-01-31 16:23:48,399 INFO L226 Difference]: Without dead ends: 1041 [2022-01-31 16:23:48,399 INFO L932 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 [2022-01-31 16:23:48,400 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 111 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:48,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 372 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:23:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2022-01-31 16:23:48,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 884. [2022-01-31 16:23:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 879 states have (on average 1.4493742889647327) internal successors, (1274), 879 states have internal predecessors, (1274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:48,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1278 transitions. [2022-01-31 16:23:48,425 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1278 transitions. Word has length 162 [2022-01-31 16:23:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:48,426 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 1278 transitions. [2022-01-31 16:23:48,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1278 transitions. [2022-01-31 16:23:48,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-31 16:23:48,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:48,427 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:48,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 16:23:48,428 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:48,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:48,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1355625361, now seen corresponding path program 1 times [2022-01-31 16:23:48,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:48,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828519666] [2022-01-31 16:23:48,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:48,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:48,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:48,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828519666] [2022-01-31 16:23:48,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828519666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:48,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:48,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:48,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867921280] [2022-01-31 16:23:48,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:48,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:48,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:48,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:48,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:48,531 INFO L87 Difference]: Start difference. First operand 884 states and 1278 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:50,966 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 [] [2022-01-31 16:23:52,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:52,426 INFO L93 Difference]: Finished difference Result 1029 states and 1480 transitions. [2022-01-31 16:23:52,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:52,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-01-31 16:23:52,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:52,429 INFO L225 Difference]: With dead ends: 1029 [2022-01-31 16:23:52,429 INFO L226 Difference]: Without dead ends: 1029 [2022-01-31 16:23:52,429 INFO L932 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 [2022-01-31 16:23:52,429 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:52,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:23:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-01-31 16:23:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 886. [2022-01-31 16:23:52,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 881 states have (on average 1.4438138479001135) internal successors, (1272), 881 states have internal predecessors, (1272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1276 transitions. [2022-01-31 16:23:52,438 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1276 transitions. Word has length 163 [2022-01-31 16:23:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:52,439 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1276 transitions. [2022-01-31 16:23:52,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1276 transitions. [2022-01-31 16:23:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-31 16:23:52,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:52,440 INFO L514 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, 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] [2022-01-31 16:23:52,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 16:23:52,440 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:52,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:52,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1144238694, now seen corresponding path program 1 times [2022-01-31 16:23:52,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:52,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692315424] [2022-01-31 16:23:52,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:52,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:52,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:52,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:52,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692315424] [2022-01-31 16:23:52,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692315424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:52,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:52,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:52,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140495122] [2022-01-31 16:23:52,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:52,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:52,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:52,544 INFO L87 Difference]: Start difference. First operand 886 states and 1276 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:55,132 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 [] [2022-01-31 16:23:56,719 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 [] [2022-01-31 16:23:58,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:58,049 INFO L93 Difference]: Finished difference Result 1107 states and 1588 transitions. [2022-01-31 16:23:58,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:58,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-01-31 16:23:58,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:58,052 INFO L225 Difference]: With dead ends: 1107 [2022-01-31 16:23:58,052 INFO L226 Difference]: Without dead ends: 1107 [2022-01-31 16:23:58,052 INFO L932 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 [2022-01-31 16:23:58,052 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 108 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:58,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 372 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-01-31 16:23:58,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-01-31 16:23:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 958. [2022-01-31 16:23:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 953 states have (on average 1.4375655823714586) internal successors, (1370), 953 states have internal predecessors, (1370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1374 transitions. [2022-01-31 16:23:58,069 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1374 transitions. Word has length 163 [2022-01-31 16:23:58,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:58,069 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 1374 transitions. [2022-01-31 16:23:58,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1374 transitions. [2022-01-31 16:23:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-31 16:23:58,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:58,079 INFO L514 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, 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] [2022-01-31 16:23:58,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 16:23:58,079 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:58,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1885264849, now seen corresponding path program 1 times [2022-01-31 16:23:58,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:58,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497125556] [2022-01-31 16:23:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:58,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:58,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:58,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497125556] [2022-01-31 16:23:58,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497125556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:58,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:58,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:58,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27661186] [2022-01-31 16:23:58,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:58,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:58,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:58,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:58,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:58,212 INFO L87 Difference]: Start difference. First operand 958 states and 1374 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:00,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:02,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:02,837 INFO L93 Difference]: Finished difference Result 989 states and 1417 transitions. [2022-01-31 16:24:02,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:02,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-01-31 16:24:02,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:02,839 INFO L225 Difference]: With dead ends: 989 [2022-01-31 16:24:02,839 INFO L226 Difference]: Without dead ends: 989 [2022-01-31 16:24:02,840 INFO L932 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 [2022-01-31 16:24:02,840 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 42 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:02,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 604 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 16:24:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-01-31 16:24:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 963. [2022-01-31 16:24:02,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 958 states have (on average 1.4352818371607516) internal successors, (1375), 958 states have internal predecessors, (1375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1379 transitions. [2022-01-31 16:24:02,849 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1379 transitions. Word has length 164 [2022-01-31 16:24:02,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:02,850 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1379 transitions. [2022-01-31 16:24:02,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:02,850 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1379 transitions. [2022-01-31 16:24:02,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-31 16:24:02,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:02,851 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:02,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 16:24:02,851 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:02,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:02,852 INFO L85 PathProgramCache]: Analyzing trace with hash -903534559, now seen corresponding path program 1 times [2022-01-31 16:24:02,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:02,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608348571] [2022-01-31 16:24:02,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:02,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:02,941 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:24:02,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:02,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608348571] [2022-01-31 16:24:02,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608348571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:02,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:02,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:02,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106823341] [2022-01-31 16:24:02,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:02,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:02,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:02,942 INFO L87 Difference]: Start difference. First operand 963 states and 1379 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:04,919 INFO L93 Difference]: Finished difference Result 989 states and 1416 transitions. [2022-01-31 16:24:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:04,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-01-31 16:24:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:04,931 INFO L225 Difference]: With dead ends: 989 [2022-01-31 16:24:04,931 INFO L226 Difference]: Without dead ends: 989 [2022-01-31 16:24:04,932 INFO L932 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 [2022-01-31 16:24:04,932 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 40 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:04,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 602 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-31 16:24:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-01-31 16:24:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 964. [2022-01-31 16:24:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 959 states have (on average 1.434827945776851) internal successors, (1376), 959 states have internal predecessors, (1376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1380 transitions. [2022-01-31 16:24:04,940 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1380 transitions. Word has length 164 [2022-01-31 16:24:04,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:04,940 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1380 transitions. [2022-01-31 16:24:04,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1380 transitions. [2022-01-31 16:24:04,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-31 16:24:04,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:04,942 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:04,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 16:24:04,942 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:04,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:04,942 INFO L85 PathProgramCache]: Analyzing trace with hash -425501681, now seen corresponding path program 1 times [2022-01-31 16:24:04,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:04,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307191874] [2022-01-31 16:24:04,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:04,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:24:05,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:05,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307191874] [2022-01-31 16:24:05,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307191874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:05,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:05,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:05,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532914746] [2022-01-31 16:24:05,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:05,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:05,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:05,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:05,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:05,031 INFO L87 Difference]: Start difference. First operand 964 states and 1380 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:07,819 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 [] [2022-01-31 16:24:09,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:09,472 INFO L93 Difference]: Finished difference Result 987 states and 1413 transitions. [2022-01-31 16:24:09,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:09,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 165 [2022-01-31 16:24:09,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:09,475 INFO L225 Difference]: With dead ends: 987 [2022-01-31 16:24:09,475 INFO L226 Difference]: Without dead ends: 987 [2022-01-31 16:24:09,475 INFO L932 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 [2022-01-31 16:24:09,475 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 37 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:09,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 598 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:24:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2022-01-31 16:24:09,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 965. [2022-01-31 16:24:09,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 960 states have (on average 1.434375) internal successors, (1377), 960 states have internal predecessors, (1377), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1381 transitions. [2022-01-31 16:24:09,482 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1381 transitions. Word has length 165 [2022-01-31 16:24:09,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:09,483 INFO L470 AbstractCegarLoop]: Abstraction has 965 states and 1381 transitions. [2022-01-31 16:24:09,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:09,483 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1381 transitions. [2022-01-31 16:24:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-31 16:24:09,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:09,484 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:09,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 16:24:09,484 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:09,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1040554030, now seen corresponding path program 1 times [2022-01-31 16:24:09,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:09,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196490545] [2022-01-31 16:24:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:09,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-01-31 16:24:09,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:09,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196490545] [2022-01-31 16:24:09,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196490545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:09,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:09,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:24:09,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014697218] [2022-01-31 16:24:09,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:09,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:24:09,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:09,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:24:09,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:24:09,594 INFO L87 Difference]: Start difference. First operand 965 states and 1381 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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) [2022-01-31 16:24:11,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:13,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:13,711 INFO L93 Difference]: Finished difference Result 1434 states and 2051 transitions. [2022-01-31 16:24:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:24:13,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 173 [2022-01-31 16:24:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:13,715 INFO L225 Difference]: With dead ends: 1434 [2022-01-31 16:24:13,715 INFO L226 Difference]: Without dead ends: 1434 [2022-01-31 16:24:13,715 INFO L932 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 [2022-01-31 16:24:13,716 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:13,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 426 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:24:13,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-01-31 16:24:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2022-01-31 16:24:13,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1429 states have (on average 1.4324702589223233) internal successors, (2047), 1429 states have internal predecessors, (2047), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 2051 transitions. [2022-01-31 16:24:13,727 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 2051 transitions. Word has length 173 [2022-01-31 16:24:13,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:13,727 INFO L470 AbstractCegarLoop]: Abstraction has 1434 states and 2051 transitions. [2022-01-31 16:24:13,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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) [2022-01-31 16:24:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 2051 transitions. [2022-01-31 16:24:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-31 16:24:13,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:13,729 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:13,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 16:24:13,729 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash -865236792, now seen corresponding path program 1 times [2022-01-31 16:24:13,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:13,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153293776] [2022-01-31 16:24:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:13,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:13,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:24:13,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:13,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153293776] [2022-01-31 16:24:13,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153293776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:13,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:13,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:24:13,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678307877] [2022-01-31 16:24:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:13,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:24:13,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:13,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:24:13,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:24:13,836 INFO L87 Difference]: Start difference. First operand 1434 states and 2051 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:15,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:15,997 INFO L93 Difference]: Finished difference Result 1871 states and 2674 transitions. [2022-01-31 16:24:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:24:15,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-01-31 16:24:16,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:16,007 INFO L225 Difference]: With dead ends: 1871 [2022-01-31 16:24:16,007 INFO L226 Difference]: Without dead ends: 1871 [2022-01-31 16:24:16,007 INFO L932 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 [2022-01-31 16:24:16,009 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:16,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 573 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 16:24:16,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2022-01-31 16:24:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1871. [2022-01-31 16:24:16,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1866 states have (on average 1.4308681672025723) internal successors, (2670), 1866 states have internal predecessors, (2670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:16,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2674 transitions. [2022-01-31 16:24:16,044 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2674 transitions. Word has length 174 [2022-01-31 16:24:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:16,044 INFO L470 AbstractCegarLoop]: Abstraction has 1871 states and 2674 transitions. [2022-01-31 16:24:16,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:16,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2674 transitions. [2022-01-31 16:24:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-01-31 16:24:16,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:16,046 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:16,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 16:24:16,046 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:16,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:16,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1546774342, now seen corresponding path program 1 times [2022-01-31 16:24:16,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:16,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514313556] [2022-01-31 16:24:16,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:16,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-01-31 16:24:16,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:16,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514313556] [2022-01-31 16:24:16,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514313556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:16,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:16,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:24:16,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799809674] [2022-01-31 16:24:16,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:16,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:24:16,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:16,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:24:16,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:24:16,152 INFO L87 Difference]: Start difference. First operand 1871 states and 2674 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:17,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:19,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:19,522 INFO L93 Difference]: Finished difference Result 2346 states and 3357 transitions. [2022-01-31 16:24:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:24:19,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-01-31 16:24:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:19,525 INFO L225 Difference]: With dead ends: 2346 [2022-01-31 16:24:19,526 INFO L226 Difference]: Without dead ends: 2346 [2022-01-31 16:24:19,526 INFO L932 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 [2022-01-31 16:24:19,526 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:19,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 16:24:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2022-01-31 16:24:19,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2346. [2022-01-31 16:24:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 2341 states have (on average 1.4322938914993593) internal successors, (3353), 2341 states have internal predecessors, (3353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3357 transitions. [2022-01-31 16:24:19,576 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3357 transitions. Word has length 213 [2022-01-31 16:24:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:19,578 INFO L470 AbstractCegarLoop]: Abstraction has 2346 states and 3357 transitions. [2022-01-31 16:24:19,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3357 transitions. [2022-01-31 16:24:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-01-31 16:24:19,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:19,581 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:19,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 16:24:19,581 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash 503424760, now seen corresponding path program 1 times [2022-01-31 16:24:19,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:19,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486850007] [2022-01-31 16:24:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:19,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:19,760 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-01-31 16:24:19,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:19,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486850007] [2022-01-31 16:24:19,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486850007] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:19,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779833861] [2022-01-31 16:24:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:19,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:19,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:19,762 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) [2022-01-31 16:24:19,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:24:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:20,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1574 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 16:24:20,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-01-31 16:24:20,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:24:20,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779833861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:20,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:24:20,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-01-31 16:24:20,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703507408] [2022-01-31 16:24:20,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:20,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:24:20,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:20,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:24:20,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:20,997 INFO L87 Difference]: Start difference. First operand 2346 states and 3357 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:21,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:21,034 INFO L93 Difference]: Finished difference Result 2821 states and 4042 transitions. [2022-01-31 16:24:21,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:24:21,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-01-31 16:24:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:21,038 INFO L225 Difference]: With dead ends: 2821 [2022-01-31 16:24:21,038 INFO L226 Difference]: Without dead ends: 2821 [2022-01-31 16:24:21,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:21,039 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:21,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 383 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:24:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2022-01-31 16:24:21,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2821. [2022-01-31 16:24:21,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2816 states have (on average 1.4339488636363635) internal successors, (4038), 2816 states have internal predecessors, (4038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:21,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4042 transitions. [2022-01-31 16:24:21,060 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4042 transitions. Word has length 298 [2022-01-31 16:24:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:21,061 INFO L470 AbstractCegarLoop]: Abstraction has 2821 states and 4042 transitions. [2022-01-31 16:24:21,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:21,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4042 transitions. [2022-01-31 16:24:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-01-31 16:24:21,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:21,064 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 4, 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] [2022-01-31 16:24:21,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-31 16:24:21,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-01-31 16:24:21,277 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:21,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:21,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1878127801, now seen corresponding path program 1 times [2022-01-31 16:24:21,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:21,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317202611] [2022-01-31 16:24:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:21,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 646 proven. 106 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-01-31 16:24:21,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317202611] [2022-01-31 16:24:21,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317202611] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452935041] [2022-01-31 16:24:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:21,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:21,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:21,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:24:21,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 16:24:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:22,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1714 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 16:24:22,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-01-31 16:24:22,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:24:22,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452935041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:22,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:24:22,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-01-31 16:24:22,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143709504] [2022-01-31 16:24:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:22,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:24:22,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:22,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:24:22,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:22,712 INFO L87 Difference]: Start difference. First operand 2821 states and 4042 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:22,749 INFO L93 Difference]: Finished difference Result 3296 states and 4728 transitions. [2022-01-31 16:24:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:24:22,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 339 [2022-01-31 16:24:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:22,754 INFO L225 Difference]: With dead ends: 3296 [2022-01-31 16:24:22,754 INFO L226 Difference]: Without dead ends: 3296 [2022-01-31 16:24:22,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:22,754 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:22,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:24:22,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2022-01-31 16:24:22,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3296. [2022-01-31 16:24:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3296 states, 3291 states have (on average 1.4354299604983287) internal successors, (4724), 3291 states have internal predecessors, (4724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 4728 transitions. [2022-01-31 16:24:22,781 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 4728 transitions. Word has length 339 [2022-01-31 16:24:22,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:22,781 INFO L470 AbstractCegarLoop]: Abstraction has 3296 states and 4728 transitions. [2022-01-31 16:24:22,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 4728 transitions. [2022-01-31 16:24:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-01-31 16:24:22,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:22,786 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:22,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 16:24:22,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-01-31 16:24:22,996 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:22,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2006391291, now seen corresponding path program 1 times [2022-01-31 16:24:22,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:22,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401591351] [2022-01-31 16:24:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:22,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 1026 proven. 106 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2022-01-31 16:24:23,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:23,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401591351] [2022-01-31 16:24:23,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401591351] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:23,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255637401] [2022-01-31 16:24:23,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:23,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:23,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:23,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:24:23,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 16:24:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:24,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 2040 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 16:24:24,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-01-31 16:24:24,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:24:24,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255637401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:24,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:24:24,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-01-31 16:24:24,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315874144] [2022-01-31 16:24:24,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:24,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:24:24,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:24,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:24:24,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:24,566 INFO L87 Difference]: Start difference. First operand 3296 states and 4728 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:24,597 INFO L93 Difference]: Finished difference Result 3771 states and 5415 transitions. [2022-01-31 16:24:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:24:24,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-01-31 16:24:24,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:24,602 INFO L225 Difference]: With dead ends: 3771 [2022-01-31 16:24:24,602 INFO L226 Difference]: Without dead ends: 3771 [2022-01-31 16:24:24,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:24,603 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 145 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:24,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 381 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:24:24,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3771 states. [2022-01-31 16:24:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3771 to 3771. [2022-01-31 16:24:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3771 states, 3766 states have (on average 1.436802973977695) internal successors, (5411), 3766 states have internal predecessors, (5411), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:24,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 5415 transitions. [2022-01-31 16:24:24,669 INFO L78 Accepts]: Start accepts. Automaton has 3771 states and 5415 transitions. Word has length 426 [2022-01-31 16:24:24,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:24,669 INFO L470 AbstractCegarLoop]: Abstraction has 3771 states and 5415 transitions. [2022-01-31 16:24:24,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:24,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3771 states and 5415 transitions. [2022-01-31 16:24:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-01-31 16:24:24,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:24,674 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:24,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 16:24:24,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:24,884 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:24,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -676105557, now seen corresponding path program 1 times [2022-01-31 16:24:24,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:24,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253638642] [2022-01-31 16:24:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:24,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2022-01-31 16:24:25,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:25,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253638642] [2022-01-31 16:24:25,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253638642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:25,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:25,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:25,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630584956] [2022-01-31 16:24:25,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:25,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:25,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:25,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:25,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:25,076 INFO L87 Difference]: Start difference. First operand 3771 states and 5415 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:27,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:28,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:28,370 INFO L93 Difference]: Finished difference Result 4399 states and 6296 transitions. [2022-01-31 16:24:28,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:28,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 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 426 [2022-01-31 16:24:28,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:28,387 INFO L225 Difference]: With dead ends: 4399 [2022-01-31 16:24:28,387 INFO L226 Difference]: Without dead ends: 4399 [2022-01-31 16:24:28,387 INFO L932 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 [2022-01-31 16:24:28,388 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 63 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:28,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 647 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:24:28,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2022-01-31 16:24:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 4099. [2022-01-31 16:24:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4099 states, 4094 states have (on average 1.436980947728383) internal successors, (5883), 4094 states have internal predecessors, (5883), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5887 transitions. [2022-01-31 16:24:28,450 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5887 transitions. Word has length 426 [2022-01-31 16:24:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:28,451 INFO L470 AbstractCegarLoop]: Abstraction has 4099 states and 5887 transitions. [2022-01-31 16:24:28,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5887 transitions. [2022-01-31 16:24:28,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-01-31 16:24:28,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:28,457 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:28,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 16:24:28,457 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:28,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:28,462 INFO L85 PathProgramCache]: Analyzing trace with hash 909790957, now seen corresponding path program 1 times [2022-01-31 16:24:28,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:28,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136896977] [2022-01-31 16:24:28,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:28,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:28,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 956 proven. 24 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2022-01-31 16:24:28,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:28,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136896977] [2022-01-31 16:24:28,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136896977] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:28,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477982728] [2022-01-31 16:24:28,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:28,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:28,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:28,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:24:28,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 16:24:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:29,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 2028 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-31 16:24:29,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:30,052 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:24:30,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:24:30,152 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-01-31 16:24:30,152 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-01-31 16:24:30,262 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-31 16:24:30,285 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-01-31 16:24:30,288 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-01-31 16:24:30,314 INFO L353 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-01-31 16:24:30,315 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-01-31 16:24:30,366 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-01-31 16:24:30,367 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-01-31 16:24:30,608 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:24:30,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-01-31 16:24:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 916 proven. 51 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2022-01-31 16:24:30,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:24:31,362 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-01-31 16:24:31,364 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-01-31 16:24:33,414 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 189 [2022-01-31 16:24:33,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:24:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 922 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-01-31 16:24:33,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477982728] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:33,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:24:33,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 12] total 22 [2022-01-31 16:24:33,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023539219] [2022-01-31 16:24:33,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:33,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 16:24:33,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:33,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 16:24:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2022-01-31 16:24:33,562 INFO L87 Difference]: Start difference. First operand 4099 states and 5887 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:39,027 INFO L93 Difference]: Finished difference Result 7496 states and 10816 transitions. [2022-01-31 16:24:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:24:39,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-01-31 16:24:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:39,036 INFO L225 Difference]: With dead ends: 7496 [2022-01-31 16:24:39,036 INFO L226 Difference]: Without dead ends: 7496 [2022-01-31 16:24:39,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 844 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2022-01-31 16:24:39,038 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 412 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 104 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:39,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 978 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 620 Invalid, 0 Unknown, 104 Unchecked, 1.4s Time] [2022-01-31 16:24:39,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2022-01-31 16:24:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 6553. [2022-01-31 16:24:39,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6553 states, 6548 states have (on average 1.4485339034819793) internal successors, (9485), 6548 states have internal predecessors, (9485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 9489 transitions. [2022-01-31 16:24:39,114 INFO L78 Accepts]: Start accepts. Automaton has 6553 states and 9489 transitions. Word has length 426 [2022-01-31 16:24:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:39,114 INFO L470 AbstractCegarLoop]: Abstraction has 6553 states and 9489 transitions. [2022-01-31 16:24:39,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6553 states and 9489 transitions. [2022-01-31 16:24:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-01-31 16:24:39,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:39,122 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:39,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 16:24:39,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-01-31 16:24:39,344 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:39,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:39,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1325709964, now seen corresponding path program 1 times [2022-01-31 16:24:39,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:39,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343172573] [2022-01-31 16:24:39,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:39,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 1015 proven. 52 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-01-31 16:24:39,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:39,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343172573] [2022-01-31 16:24:39,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343172573] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:39,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654190579] [2022-01-31 16:24:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:39,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:39,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:39,593 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:24:39,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 16:24:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:40,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 2045 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 16:24:40,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 1119 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-01-31 16:24:41,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:24:41,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654190579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:41,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:24:41,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-01-31 16:24:41,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610807004] [2022-01-31 16:24:41,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:41,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:24:41,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:24:41,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:41,090 INFO L87 Difference]: Start difference. First operand 6553 states and 9489 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:41,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:41,118 INFO L93 Difference]: Finished difference Result 7472 states and 10824 transitions. [2022-01-31 16:24:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:24:41,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-01-31 16:24:41,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:41,139 INFO L225 Difference]: With dead ends: 7472 [2022-01-31 16:24:41,140 INFO L226 Difference]: Without dead ends: 7472 [2022-01-31 16:24:41,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:24:41,140 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 146 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:41,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 384 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:24:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2022-01-31 16:24:41,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 7472. [2022-01-31 16:24:41,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7472 states, 7467 states have (on average 1.449042453461899) internal successors, (10820), 7467 states have internal predecessors, (10820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 10824 transitions. [2022-01-31 16:24:41,249 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 10824 transitions. Word has length 428 [2022-01-31 16:24:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:41,249 INFO L470 AbstractCegarLoop]: Abstraction has 7472 states and 10824 transitions. [2022-01-31 16:24:41,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 10824 transitions. [2022-01-31 16:24:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-01-31 16:24:41,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:41,258 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:41,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-31 16:24:41,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-01-31 16:24:41,471 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 972462257, now seen corresponding path program 1 times [2022-01-31 16:24:41,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:41,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571628837] [2022-01-31 16:24:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:41,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-01-31 16:24:41,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:41,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571628837] [2022-01-31 16:24:41,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571628837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:41,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:41,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:41,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346645757] [2022-01-31 16:24:41,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:41,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:41,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:41,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:41,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:41,650 INFO L87 Difference]: Start difference. First operand 7472 states and 10824 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:42,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:44,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:46,730 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 [] [2022-01-31 16:24:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:47,226 INFO L93 Difference]: Finished difference Result 8005 states and 11544 transitions. [2022-01-31 16:24:47,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:47,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 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 428 [2022-01-31 16:24:47,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:47,244 INFO L225 Difference]: With dead ends: 8005 [2022-01-31 16:24:47,244 INFO L226 Difference]: Without dead ends: 8005 [2022-01-31 16:24:47,244 INFO L932 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 [2022-01-31 16:24:47,244 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 61 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:47,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 645 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-01-31 16:24:47,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2022-01-31 16:24:47,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 7481. [2022-01-31 16:24:47,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7481 states, 7476 states have (on average 1.448501872659176) internal successors, (10829), 7476 states have internal predecessors, (10829), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7481 states to 7481 states and 10833 transitions. [2022-01-31 16:24:47,326 INFO L78 Accepts]: Start accepts. Automaton has 7481 states and 10833 transitions. Word has length 428 [2022-01-31 16:24:47,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:47,326 INFO L470 AbstractCegarLoop]: Abstraction has 7481 states and 10833 transitions. [2022-01-31 16:24:47,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7481 states and 10833 transitions. [2022-01-31 16:24:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-01-31 16:24:47,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:47,336 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:47,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 16:24:47,336 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:47,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1885248693, now seen corresponding path program 1 times [2022-01-31 16:24:47,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:47,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371548843] [2022-01-31 16:24:47,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:47,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:47,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 966 proven. 27 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2022-01-31 16:24:47,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:47,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371548843] [2022-01-31 16:24:47,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371548843] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:47,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275158561] [2022-01-31 16:24:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:47,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:47,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:47,676 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:24:47,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 16:24:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:48,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 2034 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-31 16:24:48,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:48,852 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:24:48,853 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:24:48,896 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:24:48,897 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:49,006 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-31 16:24:49,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-01-31 16:24:49,026 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-01-31 16:24:49,039 INFO L353 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-01-31 16:24:49,040 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-01-31 16:24:49,095 INFO L353 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-01-31 16:24:49,095 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-01-31 16:24:49,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 920 proven. 48 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2022-01-31 16:24:50,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:24:50,702 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-01-31 16:24:50,704 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-01-31 16:24:52,704 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int)) (not (= 8641 (select (select (store |c_#memory_int| v_arrayElimCell_23 (store (select |c_#memory_int| v_arrayElimCell_23) (+ 844 v_arrayElimCell_24) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-01-31 16:24:52,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 925 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2022-01-31 16:24:52,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275158561] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:52,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:24:52,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 9] total 22 [2022-01-31 16:24:52,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800624690] [2022-01-31 16:24:52,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:52,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:24:52,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:52,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:24:52,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=352, Unknown=1, NotChecked=38, Total=462 [2022-01-31 16:24:52,816 INFO L87 Difference]: Start difference. First operand 7481 states and 10833 transitions. Second operand has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:55,303 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 8641 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int)) (not (= 8641 (select (select (store |c_#memory_int| v_arrayElimCell_23 (store (select |c_#memory_int| v_arrayElimCell_23) (+ 844 v_arrayElimCell_24) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-01-31 16:24:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:55,458 INFO L93 Difference]: Finished difference Result 8810 states and 12719 transitions. [2022-01-31 16:24:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-01-31 16:24:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:55,465 INFO L225 Difference]: With dead ends: 8810 [2022-01-31 16:24:55,465 INFO L226 Difference]: Without dead ends: 8810 [2022-01-31 16:24:55,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 848 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=80, Invalid=388, Unknown=2, NotChecked=82, Total=552 [2022-01-31 16:24:55,468 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 137 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 262 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:55,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 595 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 312 Invalid, 0 Unknown, 262 Unchecked, 1.8s Time] [2022-01-31 16:24:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2022-01-31 16:24:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 7212. [2022-01-31 16:24:55,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7212 states, 7207 states have (on average 1.4531705286526988) internal successors, (10473), 7207 states have internal predecessors, (10473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7212 states to 7212 states and 10477 transitions. [2022-01-31 16:24:55,552 INFO L78 Accepts]: Start accepts. Automaton has 7212 states and 10477 transitions. Word has length 428 [2022-01-31 16:24:55,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:55,553 INFO L470 AbstractCegarLoop]: Abstraction has 7212 states and 10477 transitions. [2022-01-31 16:24:55,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:55,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7212 states and 10477 transitions. [2022-01-31 16:24:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-01-31 16:24:55,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:55,572 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:55,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-31 16:24:55,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:55,794 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:55,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:55,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2108230989, now seen corresponding path program 1 times [2022-01-31 16:24:55,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:55,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205559275] [2022-01-31 16:24:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:55,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:56,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 963 proven. 27 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-01-31 16:24:56,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:56,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205559275] [2022-01-31 16:24:56,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205559275] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:56,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389045396] [2022-01-31 16:24:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:56,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:56,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:56,095 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:24:56,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-31 16:24:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:57,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-31 16:24:57,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:57,304 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:24:57,305 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:24:57,344 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:24:57,344 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:57,435 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-31 16:24:57,452 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-01-31 16:24:57,454 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-01-31 16:24:57,470 INFO L353 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-01-31 16:24:57,470 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-01-31 16:24:57,531 INFO L353 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-01-31 16:24:57,532 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-01-31 16:24:57,731 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 920 proven. 48 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2022-01-31 16:24:57,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:24:58,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-01-31 16:24:58,241 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-01-31 16:24:59,158 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_34 Int) (v_arrayElimCell_33 Int)) (not (= 8641 (select (select (store |c_#memory_int| v_arrayElimCell_33 (store (select |c_#memory_int| v_arrayElimCell_33) (+ 844 v_arrayElimCell_34) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-01-31 16:24:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 925 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2022-01-31 16:24:59,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389045396] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:59,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:24:59,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 9] total 18 [2022-01-31 16:24:59,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051356755] [2022-01-31 16:24:59,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:59,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:24:59,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:24:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=216, Unknown=1, NotChecked=30, Total=306 [2022-01-31 16:24:59,280 INFO L87 Difference]: Start difference. First operand 7212 states and 10477 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:00,331 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 [] [2022-01-31 16:25:01,849 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_34 Int) (v_arrayElimCell_33 Int)) (not (= 8641 (select (select (store |c_#memory_int| v_arrayElimCell_33 (store (select |c_#memory_int| v_arrayElimCell_33) (+ 844 v_arrayElimCell_34) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) (not (= 8641 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-01-31 16:25:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:01,983 INFO L93 Difference]: Finished difference Result 8172 states and 11809 transitions. [2022-01-31 16:25:01,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:01,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-01-31 16:25:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:01,989 INFO L225 Difference]: With dead ends: 8172 [2022-01-31 16:25:01,989 INFO L226 Difference]: Without dead ends: 8172 [2022-01-31 16:25:01,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 850 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=67, Invalid=245, Unknown=2, NotChecked=66, Total=380 [2022-01-31 16:25:01,993 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 137 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:01,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 605 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 312 Invalid, 0 Unknown, 260 Unchecked, 1.7s Time] [2022-01-31 16:25:01,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2022-01-31 16:25:02,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 6900. [2022-01-31 16:25:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6900 states, 6895 states have (on average 1.4527918781725888) internal successors, (10017), 6895 states have internal predecessors, (10017), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 10021 transitions. [2022-01-31 16:25:02,060 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 10021 transitions. Word has length 428 [2022-01-31 16:25:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:02,065 INFO L470 AbstractCegarLoop]: Abstraction has 6900 states and 10021 transitions. [2022-01-31 16:25:02,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 10021 transitions. [2022-01-31 16:25:02,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-01-31 16:25:02,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:02,073 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:02,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-31 16:25:02,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:25:02,287 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:02,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:02,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1597716625, now seen corresponding path program 1 times [2022-01-31 16:25:02,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:02,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371336934] [2022-01-31 16:25:02,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:02,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1959 backedges. 1114 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2022-01-31 16:25:02,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:02,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371336934] [2022-01-31 16:25:02,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371336934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:02,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:02,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:02,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880484919] [2022-01-31 16:25:02,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:02,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:02,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:02,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:02,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:02,489 INFO L87 Difference]: Start difference. First operand 6900 states and 10021 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:03,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:05,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:06,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:07,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:08,419 INFO L93 Difference]: Finished difference Result 7330 states and 10593 transitions. [2022-01-31 16:25:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 470 [2022-01-31 16:25:08,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:08,426 INFO L225 Difference]: With dead ends: 7330 [2022-01-31 16:25:08,426 INFO L226 Difference]: Without dead ends: 7330 [2022-01-31 16:25:08,426 INFO L932 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 [2022-01-31 16:25:08,426 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 70 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:08,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 625 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 16:25:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7330 states. [2022-01-31 16:25:08,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7330 to 6900. [2022-01-31 16:25:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6900 states, 6895 states have (on average 1.4504713560551123) internal successors, (10001), 6895 states have internal predecessors, (10001), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 10005 transitions. [2022-01-31 16:25:08,482 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 10005 transitions. Word has length 470 [2022-01-31 16:25:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:08,483 INFO L470 AbstractCegarLoop]: Abstraction has 6900 states and 10005 transitions. [2022-01-31 16:25:08,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 10005 transitions. [2022-01-31 16:25:08,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-01-31 16:25:08,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:08,489 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:08,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 16:25:08,489 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:08,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash -872562479, now seen corresponding path program 1 times [2022-01-31 16:25:08,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:08,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698186845] [2022-01-31 16:25:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:08,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1127 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-01-31 16:25:08,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:08,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698186845] [2022-01-31 16:25:08,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698186845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:08,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:08,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:08,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578992671] [2022-01-31 16:25:08,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:08,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:08,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:08,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:08,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:08,662 INFO L87 Difference]: Start difference. First operand 6900 states and 10005 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:10,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:11,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:13,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:13,920 INFO L93 Difference]: Finished difference Result 7266 states and 10485 transitions. [2022-01-31 16:25:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:13,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 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 472 [2022-01-31 16:25:13,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:13,926 INFO L225 Difference]: With dead ends: 7266 [2022-01-31 16:25:13,927 INFO L226 Difference]: Without dead ends: 7266 [2022-01-31 16:25:13,927 INFO L932 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 [2022-01-31 16:25:13,935 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 64 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:13,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 617 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:25:13,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7266 states. [2022-01-31 16:25:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7266 to 6900. [2022-01-31 16:25:13,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6900 states, 6895 states have (on average 1.4481508339376359) internal successors, (9985), 6895 states have internal predecessors, (9985), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:13,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 9989 transitions. [2022-01-31 16:25:13,991 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 9989 transitions. Word has length 472 [2022-01-31 16:25:13,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:13,991 INFO L470 AbstractCegarLoop]: Abstraction has 6900 states and 9989 transitions. [2022-01-31 16:25:13,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 9989 transitions. [2022-01-31 16:25:13,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-01-31 16:25:13,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:13,997 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:13,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-31 16:25:13,997 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash 968346321, now seen corresponding path program 1 times [2022-01-31 16:25:13,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:13,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470638559] [2022-01-31 16:25:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:13,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 1289 proven. 98 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2022-01-31 16:25:14,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470638559] [2022-01-31 16:25:14,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470638559] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:25:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921088111] [2022-01-31 16:25:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:14,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:25:14,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:25:14,183 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:25:14,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-31 16:25:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:15,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-31 16:25:15,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:25:15,521 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-01-31 16:25:15,538 INFO L353 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-01-31 16:25:15,538 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 55 [2022-01-31 16:25:15,544 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-01-31 16:25:15,547 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-01-31 16:25:15,614 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-01-31 16:25:15,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:25:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 1286 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2022-01-31 16:25:15,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:25:15,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921088111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:15,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:25:15,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-01-31 16:25:15,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181226056] [2022-01-31 16:25:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:15,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:25:15,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:15,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:25:15,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:25:15,966 INFO L87 Difference]: Start difference. First operand 6900 states and 9989 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:17,146 INFO L93 Difference]: Finished difference Result 7555 states and 10903 transitions. [2022-01-31 16:25:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:25:17,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 476 [2022-01-31 16:25:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:17,154 INFO L225 Difference]: With dead ends: 7555 [2022-01-31 16:25:17,154 INFO L226 Difference]: Without dead ends: 7555 [2022-01-31 16:25:17,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:25:17,154 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 53 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:17,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 635 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 16:25:17,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7555 states. [2022-01-31 16:25:17,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7555 to 7269. [2022-01-31 16:25:17,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7269 states, 7264 states have (on average 1.4464482378854626) internal successors, (10507), 7264 states have internal predecessors, (10507), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7269 states to 7269 states and 10511 transitions. [2022-01-31 16:25:17,271 INFO L78 Accepts]: Start accepts. Automaton has 7269 states and 10511 transitions. Word has length 476 [2022-01-31 16:25:17,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:17,272 INFO L470 AbstractCegarLoop]: Abstraction has 7269 states and 10511 transitions. [2022-01-31 16:25:17,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:17,272 INFO L276 IsEmpty]: Start isEmpty. Operand 7269 states and 10511 transitions. [2022-01-31 16:25:17,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-01-31 16:25:17,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:17,279 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:17,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-31 16:25:17,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-01-31 16:25:17,497 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:17,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1820690579, now seen corresponding path program 1 times [2022-01-31 16:25:17,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:17,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429795093] [2022-01-31 16:25:17,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:17,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2067 backedges. 1237 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-01-31 16:25:17,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:17,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429795093] [2022-01-31 16:25:17,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429795093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:17,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:17,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:17,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531242362] [2022-01-31 16:25:17,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:17,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:17,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:17,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:17,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:17,745 INFO L87 Difference]: Start difference. First operand 7269 states and 10511 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:19,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:21,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:22,639 INFO L93 Difference]: Finished difference Result 7342 states and 10614 transitions. [2022-01-31 16:25:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 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 478 [2022-01-31 16:25:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:22,645 INFO L225 Difference]: With dead ends: 7342 [2022-01-31 16:25:22,645 INFO L226 Difference]: Without dead ends: 7342 [2022-01-31 16:25:22,645 INFO L932 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 [2022-01-31 16:25:22,646 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:22,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 597 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 16:25:22,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7342 states. [2022-01-31 16:25:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7342 to 7170. [2022-01-31 16:25:22,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7165 states have (on average 1.4463363572923935) internal successors, (10363), 7165 states have internal predecessors, (10363), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 10367 transitions. [2022-01-31 16:25:22,700 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 10367 transitions. Word has length 478 [2022-01-31 16:25:22,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:22,700 INFO L470 AbstractCegarLoop]: Abstraction has 7170 states and 10367 transitions. [2022-01-31 16:25:22,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 10367 transitions. [2022-01-31 16:25:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-01-31 16:25:22,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:22,707 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:22,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-31 16:25:22,707 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:22,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:22,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1506700785, now seen corresponding path program 1 times [2022-01-31 16:25:22,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:22,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488745170] [2022-01-31 16:25:22,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:22,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 1298 proven. 28 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2022-01-31 16:25:22,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:22,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488745170] [2022-01-31 16:25:22,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488745170] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:25:22,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712315742] [2022-01-31 16:25:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:22,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:25:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:25:22,903 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:25:22,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-31 16:25:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:24,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2254 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-31 16:25:24,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:25:24,161 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:25:24,161 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:25:24,204 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:25:24,205 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:25:24,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-01-31 16:25:24,370 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-01-31 16:25:24,385 INFO L353 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-01-31 16:25:24,385 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 65 [2022-01-31 16:25:24,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:24,392 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-31 16:25:24,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:24,398 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-01-31 16:25:24,508 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-01-31 16:25:24,641 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:25:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 1293 proven. 108 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-01-31 16:25:24,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:25:25,262 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-01-31 16:25:25,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2022-01-31 16:25:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 1308 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-01-31 16:25:25,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712315742] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:25:25,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:25:25,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-01-31 16:25:25,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402179301] [2022-01-31 16:25:25,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:25,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:25:25,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:25,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:25:25,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-31 16:25:25,427 INFO L87 Difference]: Start difference. First operand 7170 states and 10367 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:26,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:26,699 INFO L93 Difference]: Finished difference Result 8733 states and 12558 transitions. [2022-01-31 16:25:26,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:25:26,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 480 [2022-01-31 16:25:26,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:26,705 INFO L225 Difference]: With dead ends: 8733 [2022-01-31 16:25:26,705 INFO L226 Difference]: Without dead ends: 8733 [2022-01-31 16:25:26,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 960 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:25:26,706 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 102 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:26,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 540 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 16:25:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2022-01-31 16:25:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7805. [2022-01-31 16:25:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7805 states, 7800 states have (on average 1.4448717948717948) internal successors, (11270), 7800 states have internal predecessors, (11270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7805 states to 7805 states and 11274 transitions. [2022-01-31 16:25:26,789 INFO L78 Accepts]: Start accepts. Automaton has 7805 states and 11274 transitions. Word has length 480 [2022-01-31 16:25:26,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:26,789 INFO L470 AbstractCegarLoop]: Abstraction has 7805 states and 11274 transitions. [2022-01-31 16:25:26,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 7805 states and 11274 transitions. [2022-01-31 16:25:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-01-31 16:25:26,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:26,796 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:26,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-31 16:25:27,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-01-31 16:25:27,019 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:27,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:27,020 INFO L85 PathProgramCache]: Analyzing trace with hash -213388925, now seen corresponding path program 1 times [2022-01-31 16:25:27,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:27,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647110347] [2022-01-31 16:25:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:27,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:27,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 1269 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-01-31 16:25:27,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:27,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647110347] [2022-01-31 16:25:27,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647110347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:27,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:27,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:27,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945008747] [2022-01-31 16:25:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:27,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:27,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:27,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:27,206 INFO L87 Difference]: Start difference. First operand 7805 states and 11274 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:29,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:31,251 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 [] [2022-01-31 16:25:32,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:32,440 INFO L93 Difference]: Finished difference Result 8415 states and 12140 transitions. [2022-01-31 16:25:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:32,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 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 482 [2022-01-31 16:25:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:32,447 INFO L225 Difference]: With dead ends: 8415 [2022-01-31 16:25:32,447 INFO L226 Difference]: Without dead ends: 8415 [2022-01-31 16:25:32,447 INFO L932 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 [2022-01-31 16:25:32,447 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 37 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:32,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 590 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:25:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8415 states. [2022-01-31 16:25:32,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8415 to 8061. [2022-01-31 16:25:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8061 states, 8056 states have (on average 1.4436444885799404) internal successors, (11630), 8056 states have internal predecessors, (11630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:32,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8061 states to 8061 states and 11634 transitions. [2022-01-31 16:25:32,515 INFO L78 Accepts]: Start accepts. Automaton has 8061 states and 11634 transitions. Word has length 482 [2022-01-31 16:25:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:32,527 INFO L470 AbstractCegarLoop]: Abstraction has 8061 states and 11634 transitions. [2022-01-31 16:25:32,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:32,527 INFO L276 IsEmpty]: Start isEmpty. Operand 8061 states and 11634 transitions. [2022-01-31 16:25:32,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-01-31 16:25:32,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:32,545 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:32,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-31 16:25:32,545 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:32,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:32,545 INFO L85 PathProgramCache]: Analyzing trace with hash 895560963, now seen corresponding path program 1 times [2022-01-31 16:25:32,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:32,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80980891] [2022-01-31 16:25:32,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:32,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:32,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1329 proven. 0 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2022-01-31 16:25:32,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:32,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80980891] [2022-01-31 16:25:32,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80980891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:32,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:32,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:25:32,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945743714] [2022-01-31 16:25:32,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:32,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:25:32,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:32,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:25:32,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:32,838 INFO L87 Difference]: Start difference. First operand 8061 states and 11634 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:35,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:36,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:37,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:38,651 INFO L93 Difference]: Finished difference Result 11509 states and 16629 transitions. [2022-01-31 16:25:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 16:25:38,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 1 states have call successors, (3), 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 484 [2022-01-31 16:25:38,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:38,660 INFO L225 Difference]: With dead ends: 11509 [2022-01-31 16:25:38,660 INFO L226 Difference]: Without dead ends: 11509 [2022-01-31 16:25:38,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:25:38,660 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 109 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:38,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 932 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:25:38,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11509 states. [2022-01-31 16:25:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11509 to 8554. [2022-01-31 16:25:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8554 states, 8549 states have (on average 1.4407533044800562) internal successors, (12317), 8549 states have internal predecessors, (12317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8554 states to 8554 states and 12321 transitions. [2022-01-31 16:25:38,723 INFO L78 Accepts]: Start accepts. Automaton has 8554 states and 12321 transitions. Word has length 484 [2022-01-31 16:25:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:38,723 INFO L470 AbstractCegarLoop]: Abstraction has 8554 states and 12321 transitions. [2022-01-31 16:25:38,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8554 states and 12321 transitions. [2022-01-31 16:25:38,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-01-31 16:25:38,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:38,731 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:38,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-31 16:25:38,731 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:38,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1405695153, now seen corresponding path program 1 times [2022-01-31 16:25:38,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:38,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743381533] [2022-01-31 16:25:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:38,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:38,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 1210 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2022-01-31 16:25:38,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:38,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743381533] [2022-01-31 16:25:38,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743381533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:38,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:38,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:38,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779010914] [2022-01-31 16:25:38,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:38,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:38,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:38,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:38,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:38,930 INFO L87 Difference]: Start difference. First operand 8554 states and 12321 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:40,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:42,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:44,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:46,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:46,459 INFO L93 Difference]: Finished difference Result 9321 states and 13418 transitions. [2022-01-31 16:25:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 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 484 [2022-01-31 16:25:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:46,466 INFO L225 Difference]: With dead ends: 9321 [2022-01-31 16:25:46,466 INFO L226 Difference]: Without dead ends: 9321 [2022-01-31 16:25:46,466 INFO L932 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 [2022-01-31 16:25:46,466 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 32 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:46,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 593 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-01-31 16:25:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9321 states. [2022-01-31 16:25:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9321 to 9030. [2022-01-31 16:25:46,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9030 states, 9025 states have (on average 1.4382271468144043) internal successors, (12980), 9025 states have internal predecessors, (12980), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9030 states to 9030 states and 12984 transitions. [2022-01-31 16:25:46,521 INFO L78 Accepts]: Start accepts. Automaton has 9030 states and 12984 transitions. Word has length 484 [2022-01-31 16:25:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:46,521 INFO L470 AbstractCegarLoop]: Abstraction has 9030 states and 12984 transitions. [2022-01-31 16:25:46,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:46,521 INFO L276 IsEmpty]: Start isEmpty. Operand 9030 states and 12984 transitions. [2022-01-31 16:25:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-01-31 16:25:46,528 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:46,528 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:46,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-31 16:25:46,528 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:46,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1692367487, now seen corresponding path program 1 times [2022-01-31 16:25:46,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:46,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843868208] [2022-01-31 16:25:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:46,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2136 trivial. 0 not checked. [2022-01-31 16:25:47,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:47,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843868208] [2022-01-31 16:25:47,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843868208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:47,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:47,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 16:25:47,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540753496] [2022-01-31 16:25:47,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:47,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:25:47,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:47,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:25:47,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:25:47,276 INFO L87 Difference]: Start difference. First operand 9030 states and 12984 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 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) [2022-01-31 16:25:49,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:49,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:49,753 INFO L93 Difference]: Finished difference Result 9038 states and 12994 transitions. [2022-01-31 16:25:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:25:49,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 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 484 [2022-01-31 16:25:49,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:49,762 INFO L225 Difference]: With dead ends: 9038 [2022-01-31 16:25:49,762 INFO L226 Difference]: Without dead ends: 9030 [2022-01-31 16:25:49,762 INFO L932 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 [2022-01-31 16:25:49,762 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 7 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:49,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 852 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:25:49,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9030 states. [2022-01-31 16:25:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9030 to 9030. [2022-01-31 16:25:49,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9030 states, 9025 states have (on average 1.4381163434903048) internal successors, (12979), 9025 states have internal predecessors, (12979), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:49,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9030 states to 9030 states and 12983 transitions. [2022-01-31 16:25:49,827 INFO L78 Accepts]: Start accepts. Automaton has 9030 states and 12983 transitions. Word has length 484 [2022-01-31 16:25:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:49,827 INFO L470 AbstractCegarLoop]: Abstraction has 9030 states and 12983 transitions. [2022-01-31 16:25:49,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 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) [2022-01-31 16:25:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9030 states and 12983 transitions. [2022-01-31 16:25:49,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-01-31 16:25:49,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:49,836 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:49,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-31 16:25:49,836 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:49,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:49,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1612048672, now seen corresponding path program 1 times [2022-01-31 16:25:49,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:49,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954921404] [2022-01-31 16:25:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:49,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:51,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 187 proven. 1832 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-01-31 16:25:51,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:51,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954921404] [2022-01-31 16:25:51,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954921404] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:25:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572579528] [2022-01-31 16:25:51,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:51,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:25:51,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:25:51,575 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:25:51,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-31 16:25:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:53,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2241 conjuncts, 96 conjunts are in the unsatisfiable core [2022-01-31 16:25:53,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:25:53,073 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:25:53,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:25:53,191 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-01-31 16:25:53,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-01-31 16:25:53,281 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-01-31 16:25:53,283 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-01-31 16:25:53,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-01-31 16:25:53,507 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-31 16:25:53,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:53,568 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-01-31 16:25:53,590 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-01-31 16:25:53,590 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-01-31 16:25:53,599 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:25:53,599 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-01-31 16:25:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,117 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-01-31 16:25:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,133 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-01-31 16:25:54,133 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-01-31 16:25:54,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,136 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:25:54,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,190 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:25:54,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,194 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:25:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,219 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:25:54,219 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-01-31 16:25:54,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,805 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-01-31 16:25:54,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-01-31 16:25:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:54,831 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-01-31 16:25:54,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-01-31 16:25:54,865 INFO L353 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-01-31 16:25:54,866 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-01-31 16:25:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,859 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 234 [2022-01-31 16:25:55,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:55,920 INFO L353 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-01-31 16:25:55,921 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 282 treesize of output 307 [2022-01-31 16:25:55,942 INFO L353 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-01-31 16:25:55,942 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 310 treesize of output 250 [2022-01-31 16:25:58,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,418 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 225 [2022-01-31 16:25:58,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,444 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:25:58,444 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 277 treesize of output 277 [2022-01-31 16:25:58,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,450 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 284 treesize of output 226 [2022-01-31 16:25:58,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,633 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 132 [2022-01-31 16:25:58,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:58,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 80 [2022-01-31 16:25:58,660 INFO L353 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-01-31 16:25:58,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 74 [2022-01-31 16:25:58,721 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-01-31 16:25:58,721 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-01-31 16:25:58,844 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:25:58,844 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-01-31 16:25:58,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 991 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-01-31 16:25:58,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:26:02,049 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:26:02,049 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 291 treesize of output 266 [2022-01-31 16:26:02,116 INFO L353 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-01-31 16:26:02,117 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 438 treesize of output 425 [2022-01-31 16:26:02,222 INFO L353 Elim1Store]: treesize reduction 378, result has 21.4 percent of original size [2022-01-31 16:26:02,222 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 479 treesize of output 463 [2022-01-31 16:26:02,239 INFO L353 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2022-01-31 16:26:02,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 435 treesize of output 409 [2022-01-31 16:26:02,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,256 INFO L353 Elim1Store]: treesize reduction 69, result has 1.4 percent of original size [2022-01-31 16:26:02,256 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 400 treesize of output 341 [2022-01-31 16:26:02,260 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 408 treesize of output 384 [2022-01-31 16:26:02,268 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-01-31 16:26:02,268 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 401 treesize of output 353 [2022-01-31 16:26:02,278 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:26:02,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 305 treesize of output 275 [2022-01-31 16:26:02,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,292 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:26:02,292 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 255 treesize of output 247 [2022-01-31 16:26:02,373 INFO L353 Elim1Store]: treesize reduction 110, result has 37.1 percent of original size [2022-01-31 16:26:02,373 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 253 treesize of output 275 [2022-01-31 16:26:02,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 202 [2022-01-31 16:26:02,394 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:26:02,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 81 [2022-01-31 16:26:02,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:02,411 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:26:02,412 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 79 [2022-01-31 16:26:02,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,552 INFO L353 Elim1Store]: treesize reduction 42, result has 35.4 percent of original size [2022-01-31 16:26:02,552 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 134 [2022-01-31 16:26:02,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:26:02,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 106 [2022-01-31 16:26:02,769 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:26:02,769 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 178 treesize of output 154 [2022-01-31 16:26:02,801 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:26:02,802 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 1 [2022-01-31 16:26:02,812 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:26:02,813 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 258 treesize of output 234 [2022-01-31 16:26:02,872 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:26:02,872 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 82 [2022-01-31 16:26:02,886 INFO L353 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-01-31 16:26:02,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 318 treesize of output 256 [2022-01-31 16:26:14,242 WARN L228 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 82 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-31 16:26:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1133 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-01-31 16:26:15,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572579528] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:26:15,514 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:26:15,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 19, 13] total 51 [2022-01-31 16:26:15,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250859836] [2022-01-31 16:26:15,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:26:15,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-01-31 16:26:15,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:15,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-01-31 16:26:15,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2255, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 16:26:15,516 INFO L87 Difference]: Start difference. First operand 9030 states and 12983 transitions. Second operand has 51 states, 50 states have (on average 15.98) internal successors, (799), 49 states have internal predecessors, (799), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:16,575 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 [] [2022-01-31 16:26:18,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:21,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:23,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:25,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:26,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:27,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:30,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:16,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:28:16,148 INFO L93 Difference]: Finished difference Result 227302 states and 325010 transitions. [2022-01-31 16:28:16,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 787 states. [2022-01-31 16:28:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 15.98) internal successors, (799), 49 states have internal predecessors, (799), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-01-31 16:28:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:28:16,915 INFO L225 Difference]: With dead ends: 227302 [2022-01-31 16:28:16,915 INFO L226 Difference]: Without dead ends: 227110 [2022-01-31 16:28:17,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2223 GetRequests, 1388 SyntacticMatches, 20 SemanticMatches, 815 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314517 ImplicationChecksByTransitivity, 60.8s TimeCoverageRelationStatistics Valid=49550, Invalid=617122, Unknown=0, NotChecked=0, Total=666672 [2022-01-31 16:28:17,091 INFO L933 BasicCegarLoop]: 1736 mSDtfsCounter, 15672 mSDsluCounter, 42567 mSDsCounter, 0 mSdLazyCounter, 48898 mSolverCounterSat, 3454 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15672 SdHoareTripleChecker+Valid, 44303 SdHoareTripleChecker+Invalid, 67733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3454 IncrementalHoareTripleChecker+Valid, 48898 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 15378 IncrementalHoareTripleChecker+Unchecked, 67.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:28:17,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15672 Valid, 44303 Invalid, 67733 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3454 Valid, 48898 Invalid, 3 Unknown, 15378 Unchecked, 67.7s Time] [2022-01-31 16:28:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227110 states. [2022-01-31 16:28:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227110 to 132857. [2022-01-31 16:28:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132857 states, 132852 states have (on average 1.455198265739319) internal successors, (193326), 132852 states have internal predecessors, (193326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:28:19,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132857 states to 132857 states and 193330 transitions. [2022-01-31 16:28:19,911 INFO L78 Accepts]: Start accepts. Automaton has 132857 states and 193330 transitions. Word has length 484 [2022-01-31 16:28:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:28:19,912 INFO L470 AbstractCegarLoop]: Abstraction has 132857 states and 193330 transitions. [2022-01-31 16:28:19,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 15.98) internal successors, (799), 49 states have internal predecessors, (799), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:28:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 132857 states and 193330 transitions. [2022-01-31 16:28:19,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-01-31 16:28:19,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:28:19,991 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:28:20,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-01-31 16:28:20,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2022-01-31 16:28:20,279 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:28:20,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:28:20,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1893166352, now seen corresponding path program 1 times [2022-01-31 16:28:20,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:28:20,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915077544] [2022-01-31 16:28:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:28:20,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:28:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:28:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:28:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:28:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2103 backedges. 1197 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-01-31 16:28:20,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:28:20,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915077544] [2022-01-31 16:28:20,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915077544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:28:20,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:28:20,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:28:20,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525728014] [2022-01-31 16:28:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:28:20,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:28:20,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:28:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:28:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:28:20,636 INFO L87 Difference]: Start difference. First operand 132857 states and 193330 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:28:23,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:28:24,530 INFO L93 Difference]: Finished difference Result 136522 states and 197596 transitions. [2022-01-31 16:28:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:28:24,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 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 487 [2022-01-31 16:28:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:28:24,703 INFO L225 Difference]: With dead ends: 136522 [2022-01-31 16:28:24,704 INFO L226 Difference]: Without dead ends: 136522 [2022-01-31 16:28:24,704 INFO L932 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 [2022-01-31 16:28:24,704 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 49 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:28:24,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 605 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:28:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136522 states. [2022-01-31 16:28:26,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136522 to 132857. [2022-01-31 16:28:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132857 states, 132852 states have (on average 1.4534444344082136) internal successors, (193093), 132852 states have internal predecessors, (193093), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:28:26,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132857 states to 132857 states and 193097 transitions. [2022-01-31 16:28:26,674 INFO L78 Accepts]: Start accepts. Automaton has 132857 states and 193097 transitions. Word has length 487 [2022-01-31 16:28:26,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:28:26,674 INFO L470 AbstractCegarLoop]: Abstraction has 132857 states and 193097 transitions. [2022-01-31 16:28:26,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:28:26,674 INFO L276 IsEmpty]: Start isEmpty. Operand 132857 states and 193097 transitions. [2022-01-31 16:28:26,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2022-01-31 16:28:26,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:28:26,753 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:28:26,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-31 16:28:26,754 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:28:26,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:28:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1808319685, now seen corresponding path program 1 times [2022-01-31 16:28:26,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:28:26,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241020662] [2022-01-31 16:28:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:28:26,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:28:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:28:28,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:28:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:28:28,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 911 proven. 68 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2022-01-31 16:28:28,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:28:28,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241020662] [2022-01-31 16:28:28,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241020662] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:28:28,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551987789] [2022-01-31 16:28:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:28:28,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:28:28,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:28:28,082 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:28:28,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-31 16:28:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:28:29,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 101 conjunts are in the unsatisfiable core [2022-01-31 16:28:29,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:28:29,836 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:28:29,837 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:28:29,868 INFO L353 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-01-31 16:28:29,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 22 [2022-01-31 16:28:29,943 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-01-31 16:28:29,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-01-31 16:28:30,039 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-01-31 16:28:30,041 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-01-31 16:28:30,154 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-31 16:28:30,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:30,201 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-01-31 16:28:30,221 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-01-31 16:28:30,221 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-01-31 16:28:30,229 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:28:30,229 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-01-31 16:28:30,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:30,869 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-01-31 16:28:30,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:30,881 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-01-31 16:28:30,882 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-01-31 16:28:30,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:30,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:28:30,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:30,937 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:28:30,937 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-01-31 16:28:30,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:30,951 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-01-31 16:28:30,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:30,955 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-01-31 16:28:31,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:31,626 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-01-31 16:28:31,626 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-01-31 16:28:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:31,668 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-01-31 16:28:31,668 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-01-31 16:28:31,724 INFO L353 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-01-31 16:28:31,724 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-01-31 16:28:33,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,165 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 313 [2022-01-31 16:28:33,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:33,225 INFO L353 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-01-31 16:28:33,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 379 treesize of output 392 [2022-01-31 16:28:33,264 INFO L353 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-01-31 16:28:33,264 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 317 [2022-01-31 16:28:37,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:37,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:37,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:37,804 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-01-31 16:28:37,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:37,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:37,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:37,810 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-01-31 16:28:37,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:37,831 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:28:37,832 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-01-31 16:28:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:38,174 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-01-31 16:28:38,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:28:38,177 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-01-31 16:28:38,199 INFO L353 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-01-31 16:28:38,200 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-01-31 16:28:38,245 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-01-31 16:28:38,245 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-01-31 16:28:38,330 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:28:38,330 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-01-31 16:28:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 1011 proven. 399 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2022-01-31 16:28:38,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:28:44,479 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:28:44,479 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 647 treesize of output 618 [2022-01-31 16:28:44,559 INFO L353 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-01-31 16:28:44,559 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 1096 treesize of output 1075 [2022-01-31 16:28:44,783 INFO L353 Elim1Store]: treesize reduction 333, result has 26.5 percent of original size [2022-01-31 16:28:44,783 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 1153 treesize of output 1112 [2022-01-31 16:28:44,820 INFO L353 Elim1Store]: treesize reduction 15, result has 21.1 percent of original size [2022-01-31 16:28:44,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1220 treesize of output 1161 [2022-01-31 16:28:44,844 INFO L353 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-01-31 16:28:44,845 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1568 treesize of output 1446 [2022-01-31 16:28:44,853 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1205 treesize of output 1197 [2022-01-31 16:28:44,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:28:44,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:28:44,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:28:44,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:28:44,860 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1192 treesize of output 1176 [2022-01-31 16:28:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 1103 proven. 177 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-01-31 16:28:45,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551987789] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:28:45,758 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:28:45,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 13] total 42 [2022-01-31 16:28:45,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496430082] [2022-01-31 16:28:45,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:28:45,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-31 16:28:45,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:28:45,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-31 16:28:45,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1518, Unknown=0, NotChecked=0, Total=1722 [2022-01-31 16:28:45,759 INFO L87 Difference]: Start difference. First operand 132857 states and 193097 transitions. Second operand has 42 states, 42 states have (on average 14.928571428571429) internal successors, (627), 41 states have internal predecessors, (627), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:28:47,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:50,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:52,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:54,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:56,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:58,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:28:59,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:01,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:03,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:04,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:06,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:07,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:09,926 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 [] [2022-01-31 16:29:34,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:29:34,743 INFO L93 Difference]: Finished difference Result 883141 states and 1263459 transitions. [2022-01-31 16:29:34,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2022-01-31 16:29:34,744 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 14.928571428571429) internal successors, (627), 41 states have internal predecessors, (627), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 489 [2022-01-31 16:29:34,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:29:37,040 INFO L225 Difference]: With dead ends: 883141 [2022-01-31 16:29:37,041 INFO L226 Difference]: Without dead ends: 878812 [2022-01-31 16:29:37,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 1025 SyntacticMatches, 6 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16156 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=4206, Invalid=39266, Unknown=0, NotChecked=0, Total=43472 [2022-01-31 16:29:37,042 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 3621 mSDsluCounter, 13856 mSDsCounter, 0 mSdLazyCounter, 11537 mSolverCounterSat, 747 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3621 SdHoareTripleChecker+Valid, 14459 SdHoareTripleChecker+Invalid, 16309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 11537 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 4019 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:29:37,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3621 Valid, 14459 Invalid, 16309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 11537 Invalid, 6 Unknown, 4019 Unchecked, 35.1s Time] [2022-01-31 16:29:37,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878812 states. [2022-01-31 16:29:46,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878812 to 566141. [2022-01-31 16:29:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566141 states, 566136 states have (on average 1.4548783331213702) internal successors, (823659), 566136 states have internal predecessors, (823659), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:29:49,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566141 states to 566141 states and 823663 transitions. [2022-01-31 16:29:49,434 INFO L78 Accepts]: Start accepts. Automaton has 566141 states and 823663 transitions. Word has length 489 [2022-01-31 16:29:49,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:29:49,434 INFO L470 AbstractCegarLoop]: Abstraction has 566141 states and 823663 transitions. [2022-01-31 16:29:49,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 14.928571428571429) internal successors, (627), 41 states have internal predecessors, (627), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:29:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 566141 states and 823663 transitions. [2022-01-31 16:29:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-01-31 16:29:50,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:29:50,061 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:29:50,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-31 16:29:50,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2022-01-31 16:29:50,287 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:29:50,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:29:50,288 INFO L85 PathProgramCache]: Analyzing trace with hash -436546203, now seen corresponding path program 1 times [2022-01-31 16:29:50,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:29:50,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752284579] [2022-01-31 16:29:50,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:29:50,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:29:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:29:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:50,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 1472 trivial. 0 not checked. [2022-01-31 16:29:50,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:29:50,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752284579] [2022-01-31 16:29:50,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752284579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:29:50,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:29:50,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:29:50,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289051195] [2022-01-31 16:29:50,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:29:50,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:29:50,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:29:50,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:29:50,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:29:50,467 INFO L87 Difference]: Start difference. First operand 566141 states and 823663 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:29:52,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:53,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:55,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:29:55,879 INFO L93 Difference]: Finished difference Result 569573 states and 813298 transitions. [2022-01-31 16:29:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:29:55,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 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 491 [2022-01-31 16:29:55,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:29:56,850 INFO L225 Difference]: With dead ends: 569573 [2022-01-31 16:29:56,850 INFO L226 Difference]: Without dead ends: 569573 [2022-01-31 16:29:56,850 INFO L932 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 [2022-01-31 16:29:56,850 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 158 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:29:56,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 226 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:29:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569573 states. [2022-01-31 16:30:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569573 to 566164. [2022-01-31 16:30:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566164 states, 566159 states have (on average 1.430490374612079) internal successors, (809885), 566159 states have internal predecessors, (809885), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566164 states to 566164 states and 809889 transitions. [2022-01-31 16:30:06,137 INFO L78 Accepts]: Start accepts. Automaton has 566164 states and 809889 transitions. Word has length 491 [2022-01-31 16:30:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:06,137 INFO L470 AbstractCegarLoop]: Abstraction has 566164 states and 809889 transitions. [2022-01-31 16:30:06,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 566164 states and 809889 transitions. [2022-01-31 16:30:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-01-31 16:30:06,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:06,854 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:06,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-31 16:30:06,854 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:06,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:06,855 INFO L85 PathProgramCache]: Analyzing trace with hash -550269669, now seen corresponding path program 1 times [2022-01-31 16:30:06,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:06,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657940224] [2022-01-31 16:30:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:06,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:07,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2179 backedges. 1339 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-01-31 16:30:07,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:07,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657940224] [2022-01-31 16:30:07,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657940224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:07,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:07,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:07,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064776171] [2022-01-31 16:30:07,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:07,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:07,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:07,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:07,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:07,157 INFO L87 Difference]: Start difference. First operand 566164 states and 809889 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:08,275 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 [] [2022-01-31 16:30:10,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:11,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:14,295 INFO L93 Difference]: Finished difference Result 654688 states and 928277 transitions. [2022-01-31 16:30:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:14,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 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 491 [2022-01-31 16:30:14,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:15,207 INFO L225 Difference]: With dead ends: 654688 [2022-01-31 16:30:15,208 INFO L226 Difference]: Without dead ends: 654688 [2022-01-31 16:30:15,208 INFO L932 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 [2022-01-31 16:30:15,208 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 38 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:15,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 603 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-01-31 16:30:15,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654688 states. [2022-01-31 16:30:21,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654688 to 632011. [2022-01-31 16:30:22,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632011 states, 632006 states have (on average 1.42249598896213) internal successors, (899026), 632006 states have internal predecessors, (899026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:24,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632011 states to 632011 states and 899030 transitions. [2022-01-31 16:30:24,885 INFO L78 Accepts]: Start accepts. Automaton has 632011 states and 899030 transitions. Word has length 491 [2022-01-31 16:30:24,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:24,885 INFO L470 AbstractCegarLoop]: Abstraction has 632011 states and 899030 transitions. [2022-01-31 16:30:24,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 632011 states and 899030 transitions. [2022-01-31 16:30:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2022-01-31 16:30:25,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:25,657 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:25,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-31 16:30:25,657 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:25,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:25,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1423920876, now seen corresponding path program 1 times [2022-01-31 16:30:25,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:25,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037761875] [2022-01-31 16:30:25,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:25,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 1355 proven. 0 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-01-31 16:30:25,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:25,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037761875] [2022-01-31 16:30:25,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037761875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:25,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:25,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:25,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623236039] [2022-01-31 16:30:25,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:25,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:25,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:25,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:25,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:25,810 INFO L87 Difference]: Start difference. First operand 632011 states and 899030 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:27,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:28,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:30,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:33,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:33,766 INFO L93 Difference]: Finished difference Result 652970 states and 925434 transitions. [2022-01-31 16:30:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:33,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (3), 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 492 [2022-01-31 16:30:33,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:34,642 INFO L225 Difference]: With dead ends: 652970 [2022-01-31 16:30:34,642 INFO L226 Difference]: Without dead ends: 652970 [2022-01-31 16:30:34,642 INFO L932 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 [2022-01-31 16:30:34,642 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 49 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:34,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 608 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:30:35,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652970 states. [2022-01-31 16:30:42,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652970 to 628932. [2022-01-31 16:30:43,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628932 states, 628927 states have (on average 1.4220696519627873) internal successors, (894378), 628927 states have internal predecessors, (894378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628932 states to 628932 states and 894382 transitions. [2022-01-31 16:30:45,394 INFO L78 Accepts]: Start accepts. Automaton has 628932 states and 894382 transitions. Word has length 492 [2022-01-31 16:30:45,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:45,394 INFO L470 AbstractCegarLoop]: Abstraction has 628932 states and 894382 transitions. [2022-01-31 16:30:45,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 628932 states and 894382 transitions. [2022-01-31 16:30:45,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-01-31 16:30:45,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:45,764 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:45,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-31 16:30:45,764 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:45,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:45,766 INFO L85 PathProgramCache]: Analyzing trace with hash 601573750, now seen corresponding path program 1 times [2022-01-31 16:30:45,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:45,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384655524] [2022-01-31 16:30:45,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:45,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2022-01-31 16:30:45,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:45,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384655524] [2022-01-31 16:30:45,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384655524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:45,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:45,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:30:45,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403946538] [2022-01-31 16:30:45,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:45,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:30:45,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:45,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:30:45,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:30:45,930 INFO L87 Difference]: Start difference. First operand 628932 states and 894382 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:47,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:48,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:53,492 INFO L93 Difference]: Finished difference Result 1245251 states and 1750995 transitions. [2022-01-31 16:30:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:30:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 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 493 [2022-01-31 16:30:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:56,925 INFO L225 Difference]: With dead ends: 1245251 [2022-01-31 16:30:56,925 INFO L226 Difference]: Without dead ends: 1245251 [2022-01-31 16:30:56,925 INFO L932 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 [2022-01-31 16:30:56,925 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 143 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:56,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 600 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:30:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245251 states. [2022-01-31 16:31:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245251 to 1245249. [2022-01-31 16:31:11,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245249 states, 1245244 states have (on average 1.4061420894218322) internal successors, (1750990), 1245244 states have internal predecessors, (1750990), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245249 states to 1245249 states and 1750994 transitions. [2022-01-31 16:31:17,544 INFO L78 Accepts]: Start accepts. Automaton has 1245249 states and 1750994 transitions. Word has length 493 [2022-01-31 16:31:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:17,544 INFO L470 AbstractCegarLoop]: Abstraction has 1245249 states and 1750994 transitions. [2022-01-31 16:31:17,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1245249 states and 1750994 transitions. [2022-01-31 16:31:18,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-01-31 16:31:18,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:18,625 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:18,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-31 16:31:18,626 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:18,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:18,626 INFO L85 PathProgramCache]: Analyzing trace with hash -767640707, now seen corresponding path program 1 times [2022-01-31 16:31:18,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:18,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799606730] [2022-01-31 16:31:18,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:18,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:18,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2146 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1439 trivial. 0 not checked. [2022-01-31 16:31:18,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:18,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799606730] [2022-01-31 16:31:18,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799606730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:18,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:18,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:18,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994587939] [2022-01-31 16:31:18,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:18,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:18,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:18,942 INFO L87 Difference]: Start difference. First operand 1245249 states and 1750994 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:21,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:23,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:25,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []