/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:06:33,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:06:33,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:06:33,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:06:33,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:06:33,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:06:33,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:06:33,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:06:33,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:06:33,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:06:33,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:06:33,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:06:33,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:06:33,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:06:33,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:06:33,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:06:33,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:06:33,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:06:33,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:06:33,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:06:33,397 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:06:33,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:06:33,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:06:33,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:06:33,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:06:33,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 21:06:33,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 21:06:33,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 21:06:33,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 21:06:33,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 21:06:33,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 21:06:33,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 21:06:33,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 21:06:33,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 21:06:33,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 21:06:33,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 21:06:33,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 21:06:33,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 21:06:33,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 21:06:33,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:06:33,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:06:33,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:06:33,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:06:33,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:06:33,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:06:33,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:06:33,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:06:33,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:06:33,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:06:33,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:06:33,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:06:33,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:06:33,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:06:33,420 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:06:33,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:06:33,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:06:33,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:06:33,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:06:33,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:06:33,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:06:33,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:06:33,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:06:33,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:06:33,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:06:33,422 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:06:33,422 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:06:33,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:06:33,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:06:33,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:06:33,641 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:06:33,642 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:06:33,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-18 21:06:33,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f61200e/4ce140a2a01147ec922695f0527a9ac9/FLAGa0469aeee [2022-03-18 21:06:34,088 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:06:34,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-18 21:06:34,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f61200e/4ce140a2a01147ec922695f0527a9ac9/FLAGa0469aeee [2022-03-18 21:06:34,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f61200e/4ce140a2a01147ec922695f0527a9ac9 [2022-03-18 21:06:34,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:06:34,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:06:34,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:06:34,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:06:34,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:06:34,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:34,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7708e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34, skipping insertion in model container [2022-03-18 21:06:34,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:34,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:06:34,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:06:34,817 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.01.i.cil-1.c[72918,72931] [2022-03-18 21:06:34,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:06:34,847 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:06:34,930 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.01.i.cil-1.c[72918,72931] [2022-03-18 21:06:34,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:06:34,942 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:06:34,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34 WrapperNode [2022-03-18 21:06:34,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:06:34,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:06:34,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:06:34,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:06:34,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:34,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:34,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:34,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:34,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:35,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:35,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:35,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:06:35,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:06:35,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:06:35,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:06:35,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (1/1) ... [2022-03-18 21:06:35,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:06:35,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:06:35,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 21:06:35,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 21:06:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:06:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:06:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:06:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 21:06:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 21:06:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:06:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 21:06:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 21:06:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 21:06:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 21:06:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:06:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:06:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:06:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:06:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 21:06:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:06:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:06:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 21:06:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:06:35,221 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:06:35,222 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:06:37,510 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:06:37,961 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 21:06:37,961 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 21:06:37,972 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:06:37,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:06:37,978 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:06:37,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:06:37 BoogieIcfgContainer [2022-03-18 21:06:37,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:06:37,981 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:06:37,981 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:06:37,982 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:06:37,984 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:06:37" (1/1) ... [2022-03-18 21:06:38,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:06:38 BasicIcfg [2022-03-18 21:06:38,028 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:06:38,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:06:38,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:06:38,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:06:38,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:06:34" (1/4) ... [2022-03-18 21:06:38,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d801e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:06:38, skipping insertion in model container [2022-03-18 21:06:38,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:06:34" (2/4) ... [2022-03-18 21:06:38,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d801e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:06:38, skipping insertion in model container [2022-03-18 21:06:38,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:06:37" (3/4) ... [2022-03-18 21:06:38,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d801e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:06:38, skipping insertion in model container [2022-03-18 21:06:38,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:06:38" (4/4) ... [2022-03-18 21:06:38,036 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.cJordan [2022-03-18 21:06:38,039 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:06:38,040 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:06:38,077 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:06:38,081 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 21:06:38,082 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:06:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 21:06:38,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-18 21:06:38,102 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:38,106 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:38,106 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:38,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:38,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1394707426, now seen corresponding path program 1 times [2022-03-18 21:06:38,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:38,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686434592] [2022-03-18 21:06:38,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:38,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:38,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686434592] [2022-03-18 21:06:38,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686434592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:38,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:38,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:38,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375311496] [2022-03-18 21:06:38,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:38,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:38,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:38,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:38,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:38,562 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:40,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:41,200 INFO L93 Difference]: Finished difference Result 281 states and 462 transitions. [2022-03-18 21:06:41,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:41,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 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 53 [2022-03-18 21:06:41,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:41,210 INFO L225 Difference]: With dead ends: 281 [2022-03-18 21:06:41,210 INFO L226 Difference]: Without dead ends: 255 [2022-03-18 21:06:41,211 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:41,213 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:41,213 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 439 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:06:41,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-18 21:06:41,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 182. [2022-03-18 21:06:41,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.6045197740112995) internal successors, (284), 177 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:41,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-03-18 21:06:41,268 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 53 [2022-03-18 21:06:41,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:41,268 INFO L478 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-03-18 21:06:41,269 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:41,269 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-03-18 21:06:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-03-18 21:06:41,270 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:41,270 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:41,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:06:41,271 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:41,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash 315625172, now seen corresponding path program 1 times [2022-03-18 21:06:41,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:41,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111883657] [2022-03-18 21:06:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:41,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:41,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111883657] [2022-03-18 21:06:41,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111883657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:41,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:41,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:41,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249239799] [2022-03-18 21:06:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:41,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:41,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:41,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:41,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:41,480 INFO L87 Difference]: Start difference. First operand 182 states and 288 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:43,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:43,876 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-03-18 21:06:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:43,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 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 54 [2022-03-18 21:06:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:43,877 INFO L225 Difference]: With dead ends: 210 [2022-03-18 21:06:43,877 INFO L226 Difference]: Without dead ends: 210 [2022-03-18 21:06:43,878 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:43,878 INFO L912 BasicCegarLoop]: 179 mSDtfsCounter, 22 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:43,879 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 460 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:43,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-18 21:06:43,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-18 21:06:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 188 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-03-18 21:06:43,886 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 54 [2022-03-18 21:06:43,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:43,886 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-03-18 21:06:43,886 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:43,886 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-03-18 21:06:43,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 21:06:43,893 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:43,893 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:43,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:06:43,893 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:43,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:43,894 INFO L85 PathProgramCache]: Analyzing trace with hash -254321634, now seen corresponding path program 1 times [2022-03-18 21:06:43,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:43,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169845351] [2022-03-18 21:06:43,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:43,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:43,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:43,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169845351] [2022-03-18 21:06:43,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169845351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:43,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:43,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:43,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810759172] [2022-03-18 21:06:43,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:43,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:43,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:43,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:43,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:43,995 INFO L87 Difference]: Start difference. First operand 193 states and 307 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:46,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:46,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:46,372 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-03-18 21:06:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:46,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-18 21:06:46,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:46,374 INFO L225 Difference]: With dead ends: 210 [2022-03-18 21:06:46,374 INFO L226 Difference]: Without dead ends: 210 [2022-03-18 21:06:46,374 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:46,375 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:46,375 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:46,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-18 21:06:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-18 21:06:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6063829787234043) internal successors, (302), 188 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) [2022-03-18 21:06:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-03-18 21:06:46,382 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 67 [2022-03-18 21:06:46,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:46,382 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-03-18 21:06:46,382 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-03-18 21:06:46,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:06:46,384 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:46,384 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:46,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:06:46,384 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:46,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:46,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1913510738, now seen corresponding path program 1 times [2022-03-18 21:06:46,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:46,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209376067] [2022-03-18 21:06:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:46,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:46,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:46,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209376067] [2022-03-18 21:06:46,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209376067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:46,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:46,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:46,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450742856] [2022-03-18 21:06:46,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:46,487 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:46,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:46,488 INFO L87 Difference]: Start difference. First operand 193 states and 306 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:48,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:48,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:48,848 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-03-18 21:06:48,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:48,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-18 21:06:48,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:48,851 INFO L225 Difference]: With dead ends: 208 [2022-03-18 21:06:48,851 INFO L226 Difference]: Without dead ends: 208 [2022-03-18 21:06:48,852 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:48,852 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:48,853 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:06:48,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-03-18 21:06:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2022-03-18 21:06:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.601063829787234) internal successors, (301), 188 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) [2022-03-18 21:06:48,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-03-18 21:06:48,858 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 68 [2022-03-18 21:06:48,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:48,858 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-03-18 21:06:48,859 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-03-18 21:06:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:06:48,860 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:48,860 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:48,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:06:48,860 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:48,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:48,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1376108913, now seen corresponding path program 1 times [2022-03-18 21:06:48,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:48,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369346027] [2022-03-18 21:06:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:48,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:48,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:48,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369346027] [2022-03-18 21:06:48,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369346027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:48,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:48,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:48,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251612670] [2022-03-18 21:06:48,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:48,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:48,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:48,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:48,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:48,953 INFO L87 Difference]: Start difference. First operand 193 states and 305 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:50,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:51,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:51,310 INFO L93 Difference]: Finished difference Result 207 states and 322 transitions. [2022-03-18 21:06:51,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:51,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-18 21:06:51,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:51,311 INFO L225 Difference]: With dead ends: 207 [2022-03-18 21:06:51,311 INFO L226 Difference]: Without dead ends: 207 [2022-03-18 21:06:51,312 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:51,312 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:51,312 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:06:51,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-18 21:06:51,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2022-03-18 21:06:51,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5957446808510638) internal successors, (300), 188 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2022-03-18 21:06:51,317 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 68 [2022-03-18 21:06:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:51,317 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2022-03-18 21:06:51,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2022-03-18 21:06:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-18 21:06:51,318 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:51,318 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:51,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:06:51,318 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:51,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:51,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595334, now seen corresponding path program 1 times [2022-03-18 21:06:51,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:51,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978886158] [2022-03-18 21:06:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:51,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:51,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:51,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:51,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978886158] [2022-03-18 21:06:51,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978886158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:51,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:51,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:51,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082581749] [2022-03-18 21:06:51,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:51,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:51,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:51,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:51,447 INFO L87 Difference]: Start difference. First operand 193 states and 304 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:53,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:53,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:53,793 INFO L93 Difference]: Finished difference Result 206 states and 320 transitions. [2022-03-18 21:06:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:53,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-18 21:06:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:53,795 INFO L225 Difference]: With dead ends: 206 [2022-03-18 21:06:53,795 INFO L226 Difference]: Without dead ends: 206 [2022-03-18 21:06:53,795 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:53,797 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:53,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:06:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-18 21:06:53,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-03-18 21:06:53,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5904255319148937) internal successors, (299), 188 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) [2022-03-18 21:06:53,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 303 transitions. [2022-03-18 21:06:53,809 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 303 transitions. Word has length 69 [2022-03-18 21:06:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:53,809 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 303 transitions. [2022-03-18 21:06:53,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:53,809 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 303 transitions. [2022-03-18 21:06:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-18 21:06:53,811 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:53,811 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:53,811 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:06:53,811 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1597008666, now seen corresponding path program 1 times [2022-03-18 21:06:53,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:53,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639234391] [2022-03-18 21:06:53,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:53,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:53,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:53,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639234391] [2022-03-18 21:06:53,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639234391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:53,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:53,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:53,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365418284] [2022-03-18 21:06:53,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:53,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:53,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:53,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:53,914 INFO L87 Difference]: Start difference. First operand 193 states and 303 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:55,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:56,381 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-03-18 21:06:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:56,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-18 21:06:56,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:56,382 INFO L225 Difference]: With dead ends: 309 [2022-03-18 21:06:56,382 INFO L226 Difference]: Without dead ends: 309 [2022-03-18 21:06:56,383 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:56,383 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 144 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:56,383 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:56,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-18 21:06:56,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 205. [2022-03-18 21:06:56,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.575) internal successors, (315), 200 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 319 transitions. [2022-03-18 21:06:56,405 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 319 transitions. Word has length 69 [2022-03-18 21:06:56,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:56,405 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 319 transitions. [2022-03-18 21:06:56,405 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 319 transitions. [2022-03-18 21:06:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-18 21:06:56,406 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:56,406 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:56,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:06:56,407 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:56,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:56,407 INFO L85 PathProgramCache]: Analyzing trace with hash 511071466, now seen corresponding path program 1 times [2022-03-18 21:06:56,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:56,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247417905] [2022-03-18 21:06:56,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:56,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:56,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:56,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:56,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247417905] [2022-03-18 21:06:56,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247417905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:56,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:56,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:56,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619172834] [2022-03-18 21:06:56,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:56,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:56,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:56,513 INFO L87 Difference]: Start difference. First operand 205 states and 319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:58,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:58,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:58,948 INFO L93 Difference]: Finished difference Result 309 states and 476 transitions. [2022-03-18 21:06:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:58,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-18 21:06:58,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:58,950 INFO L225 Difference]: With dead ends: 309 [2022-03-18 21:06:58,950 INFO L226 Difference]: Without dead ends: 309 [2022-03-18 21:06:58,950 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:58,951 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 142 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:58,951 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:58,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-18 21:06:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 206. [2022-03-18 21:06:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5621890547263682) internal successors, (314), 201 states have internal predecessors, (314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 318 transitions. [2022-03-18 21:06:58,955 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 318 transitions. Word has length 70 [2022-03-18 21:06:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:58,955 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 318 transitions. [2022-03-18 21:06:58,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 318 transitions. [2022-03-18 21:06:58,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-18 21:06:58,956 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:58,956 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:58,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:06:58,956 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:58,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:58,957 INFO L85 PathProgramCache]: Analyzing trace with hash -11530602, now seen corresponding path program 1 times [2022-03-18 21:06:58,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:58,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090903249] [2022-03-18 21:06:58,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:58,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:06:59,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:59,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090903249] [2022-03-18 21:06:59,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090903249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:59,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:59,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:59,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636698755] [2022-03-18 21:06:59,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:59,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:59,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:59,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:59,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:59,053 INFO L87 Difference]: Start difference. First operand 206 states and 318 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:01,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:01,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:01,369 INFO L93 Difference]: Finished difference Result 219 states and 334 transitions. [2022-03-18 21:07:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:01,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 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 71 [2022-03-18 21:07:01,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:01,370 INFO L225 Difference]: With dead ends: 219 [2022-03-18 21:07:01,371 INFO L226 Difference]: Without dead ends: 219 [2022-03-18 21:07:01,371 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:01,371 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:01,371 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:07:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-18 21:07:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 206. [2022-03-18 21:07:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.5572139303482586) internal successors, (313), 201 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2022-03-18 21:07:01,375 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 71 [2022-03-18 21:07:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:01,375 INFO L478 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2022-03-18 21:07:01,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2022-03-18 21:07:01,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-18 21:07:01,376 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:01,376 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:01,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:07:01,377 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:01,377 INFO L85 PathProgramCache]: Analyzing trace with hash -618559600, now seen corresponding path program 1 times [2022-03-18 21:07:01,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:01,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701862694] [2022-03-18 21:07:01,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:01,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:07:01,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:01,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701862694] [2022-03-18 21:07:01,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701862694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:01,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:01,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:01,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298533613] [2022-03-18 21:07:01,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:01,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:01,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:01,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:01,497 INFO L87 Difference]: Start difference. First operand 206 states and 317 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:03,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:03,861 INFO L93 Difference]: Finished difference Result 249 states and 380 transitions. [2022-03-18 21:07:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 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 71 [2022-03-18 21:07:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:03,862 INFO L225 Difference]: With dead ends: 249 [2022-03-18 21:07:03,862 INFO L226 Difference]: Without dead ends: 249 [2022-03-18 21:07:03,862 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:03,863 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:03,863 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:07:03,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-03-18 21:07:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 228. [2022-03-18 21:07:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5650224215246638) internal successors, (349), 223 states have internal predecessors, (349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions. [2022-03-18 21:07:03,867 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 71 [2022-03-18 21:07:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:03,867 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 353 transitions. [2022-03-18 21:07:03,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions. [2022-03-18 21:07:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-03-18 21:07:03,868 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:03,868 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:03,868 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:07:03,869 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:03,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:03,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1019782777, now seen corresponding path program 1 times [2022-03-18 21:07:03,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:03,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259210026] [2022-03-18 21:07:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:03,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:03,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:03,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:07:03,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:03,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259210026] [2022-03-18 21:07:03,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259210026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:03,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:03,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:03,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059933390] [2022-03-18 21:07:03,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:03,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:03,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:03,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:03,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:03,949 INFO L87 Difference]: Start difference. First operand 228 states and 353 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:05,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:06,391 INFO L93 Difference]: Finished difference Result 331 states and 507 transitions. [2022-03-18 21:07:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 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 72 [2022-03-18 21:07:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:06,393 INFO L225 Difference]: With dead ends: 331 [2022-03-18 21:07:06,393 INFO L226 Difference]: Without dead ends: 331 [2022-03-18 21:07:06,393 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:06,394 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 139 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:06,394 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:07:06,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-03-18 21:07:06,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 230. [2022-03-18 21:07:06,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.551111111111111) internal successors, (349), 225 states have internal predecessors, (349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 353 transitions. [2022-03-18 21:07:06,398 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 353 transitions. Word has length 72 [2022-03-18 21:07:06,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:06,398 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 353 transitions. [2022-03-18 21:07:06,398 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 353 transitions. [2022-03-18 21:07:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 21:07:06,399 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:06,399 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:06,399 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:07:06,399 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:06,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash -913771294, now seen corresponding path program 1 times [2022-03-18 21:07:06,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:06,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820387833] [2022-03-18 21:07:06,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:06,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:07:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:06,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820387833] [2022-03-18 21:07:06,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820387833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:06,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:06,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:06,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954890099] [2022-03-18 21:07:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:06,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:06,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:06,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:06,482 INFO L87 Difference]: Start difference. First operand 230 states and 353 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:08,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:08,939 INFO L93 Difference]: Finished difference Result 374 states and 581 transitions. [2022-03-18 21:07:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:08,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-18 21:07:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:08,941 INFO L225 Difference]: With dead ends: 374 [2022-03-18 21:07:08,941 INFO L226 Difference]: Without dead ends: 374 [2022-03-18 21:07:08,941 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:08,941 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 138 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:08,941 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 323 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:07:08,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-18 21:07:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 247. [2022-03-18 21:07:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.537190082644628) internal successors, (372), 242 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 376 transitions. [2022-03-18 21:07:08,957 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 376 transitions. Word has length 84 [2022-03-18 21:07:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:08,958 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 376 transitions. [2022-03-18 21:07:08,958 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:08,958 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 376 transitions. [2022-03-18 21:07:08,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-18 21:07:08,958 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:08,958 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:08,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:07:08,959 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:08,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:08,959 INFO L85 PathProgramCache]: Analyzing trace with hash -881613718, now seen corresponding path program 1 times [2022-03-18 21:07:08,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:08,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786826887] [2022-03-18 21:07:08,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:08,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:09,071 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:07:09,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:09,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786826887] [2022-03-18 21:07:09,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786826887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:09,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:09,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:09,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027227500] [2022-03-18 21:07:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:09,071 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:09,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:09,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:09,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:09,072 INFO L87 Difference]: Start difference. First operand 247 states and 376 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:10,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:12,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:14,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:16,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:17,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:17,044 INFO L93 Difference]: Finished difference Result 347 states and 525 transitions. [2022-03-18 21:07:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:17,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-18 21:07:17,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:17,046 INFO L225 Difference]: With dead ends: 347 [2022-03-18 21:07:17,046 INFO L226 Difference]: Without dead ends: 347 [2022-03-18 21:07:17,046 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:17,046 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:17,046 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-18 21:07:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-03-18 21:07:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 248. [2022-03-18 21:07:17,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5267489711934157) internal successors, (371), 243 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 375 transitions. [2022-03-18 21:07:17,050 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 375 transitions. Word has length 85 [2022-03-18 21:07:17,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:17,051 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 375 transitions. [2022-03-18 21:07:17,051 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 375 transitions. [2022-03-18 21:07:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-18 21:07:17,051 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:17,051 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:17,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:07:17,052 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:17,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash -344211893, now seen corresponding path program 1 times [2022-03-18 21:07:17,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:17,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129577181] [2022-03-18 21:07:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:17,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:17,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:07:17,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:17,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129577181] [2022-03-18 21:07:17,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129577181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:17,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:17,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:17,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022836143] [2022-03-18 21:07:17,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:17,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:17,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:17,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:17,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:17,135 INFO L87 Difference]: Start difference. First operand 248 states and 375 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:19,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:19,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:19,490 INFO L93 Difference]: Finished difference Result 266 states and 398 transitions. [2022-03-18 21:07:19,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:19,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-18 21:07:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:19,491 INFO L225 Difference]: With dead ends: 266 [2022-03-18 21:07:19,491 INFO L226 Difference]: Without dead ends: 266 [2022-03-18 21:07:19,491 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:19,491 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:19,492 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:07:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-18 21:07:19,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 248. [2022-03-18 21:07:19,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.522633744855967) internal successors, (370), 243 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 374 transitions. [2022-03-18 21:07:19,495 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 374 transitions. Word has length 85 [2022-03-18 21:07:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:19,495 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 374 transitions. [2022-03-18 21:07:19,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:19,496 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 374 transitions. [2022-03-18 21:07:19,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-18 21:07:19,496 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:19,496 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:19,496 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:07:19,496 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:19,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash 382441214, now seen corresponding path program 1 times [2022-03-18 21:07:19,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:19,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772405426] [2022-03-18 21:07:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:19,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:19,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:07:19,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:19,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772405426] [2022-03-18 21:07:19,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772405426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:19,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:19,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:19,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663200250] [2022-03-18 21:07:19,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:19,588 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:19,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:19,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:19,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:19,588 INFO L87 Difference]: Start difference. First operand 248 states and 374 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:21,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:21,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:21,929 INFO L93 Difference]: Finished difference Result 261 states and 389 transitions. [2022-03-18 21:07:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:21,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-18 21:07:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:21,930 INFO L225 Difference]: With dead ends: 261 [2022-03-18 21:07:21,930 INFO L226 Difference]: Without dead ends: 261 [2022-03-18 21:07:21,930 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:21,931 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 19 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:21,931 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 547 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:07:21,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-18 21:07:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 248. [2022-03-18 21:07:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.5185185185185186) internal successors, (369), 243 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:21,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 373 transitions. [2022-03-18 21:07:21,934 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 373 transitions. Word has length 86 [2022-03-18 21:07:21,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:21,934 INFO L478 AbstractCegarLoop]: Abstraction has 248 states and 373 transitions. [2022-03-18 21:07:21,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:21,935 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 373 transitions. [2022-03-18 21:07:21,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-18 21:07:21,935 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:21,935 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:21,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:07:21,935 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:21,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:21,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1995759549, now seen corresponding path program 1 times [2022-03-18 21:07:21,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:21,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213136129] [2022-03-18 21:07:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-18 21:07:22,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:22,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213136129] [2022-03-18 21:07:22,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213136129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:22,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:22,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:07:22,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650945558] [2022-03-18 21:07:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:22,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:07:22,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:22,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:07:22,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:22,065 INFO L87 Difference]: Start difference. First operand 248 states and 373 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:24,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:24,411 INFO L93 Difference]: Finished difference Result 257 states and 384 transitions. [2022-03-18 21:07:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:07:24,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-18 21:07:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:24,412 INFO L225 Difference]: With dead ends: 257 [2022-03-18 21:07:24,412 INFO L226 Difference]: Without dead ends: 257 [2022-03-18 21:07:24,412 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:07:24,413 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:24,413 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:07:24,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-18 21:07:24,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-03-18 21:07:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.507936507936508) internal successors, (380), 252 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 384 transitions. [2022-03-18 21:07:24,416 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 384 transitions. Word has length 87 [2022-03-18 21:07:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:24,416 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 384 transitions. [2022-03-18 21:07:24,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:24,417 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 384 transitions. [2022-03-18 21:07:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-18 21:07:24,417 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:24,417 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:24,417 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:07:24,417 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1310252391, now seen corresponding path program 1 times [2022-03-18 21:07:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:24,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381594865] [2022-03-18 21:07:24,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:24,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:24,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:07:24,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:24,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381594865] [2022-03-18 21:07:24,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381594865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:24,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:24,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:24,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036598259] [2022-03-18 21:07:24,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:24,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:24,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:24,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:24,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:24,522 INFO L87 Difference]: Start difference. First operand 257 states and 384 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:25,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:27,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:29,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:31,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:32,047 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2022-03-18 21:07:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:32,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-18 21:07:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:32,049 INFO L225 Difference]: With dead ends: 274 [2022-03-18 21:07:32,049 INFO L226 Difference]: Without dead ends: 274 [2022-03-18 21:07:32,049 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:32,049 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:32,049 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 490 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-18 21:07:32,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-18 21:07:32,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2022-03-18 21:07:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.503968253968254) internal successors, (379), 252 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:32,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 383 transitions. [2022-03-18 21:07:32,053 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 383 transitions. Word has length 89 [2022-03-18 21:07:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:32,053 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 383 transitions. [2022-03-18 21:07:32,053 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 383 transitions. [2022-03-18 21:07:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-18 21:07:32,054 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:32,054 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:32,054 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 21:07:32,054 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:32,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:32,055 INFO L85 PathProgramCache]: Analyzing trace with hash 500536592, now seen corresponding path program 1 times [2022-03-18 21:07:32,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:32,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408163557] [2022-03-18 21:07:32,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:32,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:07:32,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:32,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408163557] [2022-03-18 21:07:32,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408163557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:32,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:32,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:32,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829269904] [2022-03-18 21:07:32,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:32,151 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:32,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:32,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:32,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:32,151 INFO L87 Difference]: Start difference. First operand 257 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:34,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:34,575 INFO L93 Difference]: Finished difference Result 365 states and 543 transitions. [2022-03-18 21:07:34,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:34,576 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 93 [2022-03-18 21:07:34,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:34,577 INFO L225 Difference]: With dead ends: 365 [2022-03-18 21:07:34,577 INFO L226 Difference]: Without dead ends: 363 [2022-03-18 21:07:34,577 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:34,577 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 110 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:34,578 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 337 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:07:34,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-03-18 21:07:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 282. [2022-03-18 21:07:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5451263537906137) internal successors, (428), 277 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2022-03-18 21:07:34,581 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 93 [2022-03-18 21:07:34,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:34,582 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2022-03-18 21:07:34,582 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2022-03-18 21:07:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 21:07:34,582 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:34,583 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:34,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 21:07:34,583 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2143278373, now seen corresponding path program 1 times [2022-03-18 21:07:34,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:34,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288936413] [2022-03-18 21:07:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:34,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:07:34,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:34,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288936413] [2022-03-18 21:07:34,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288936413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:34,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:34,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:34,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052488387] [2022-03-18 21:07:34,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:34,735 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:34,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:34,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:34,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:34,735 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:36,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:37,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:37,171 INFO L93 Difference]: Finished difference Result 383 states and 581 transitions. [2022-03-18 21:07:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:37,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-18 21:07:37,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:37,173 INFO L225 Difference]: With dead ends: 383 [2022-03-18 21:07:37,173 INFO L226 Difference]: Without dead ends: 383 [2022-03-18 21:07:37,173 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:37,173 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 82 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:37,174 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 482 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:07:37,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-18 21:07:37,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 316. [2022-03-18 21:07:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 311 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:37,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 487 transitions. [2022-03-18 21:07:37,178 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 487 transitions. Word has length 122 [2022-03-18 21:07:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:37,178 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 487 transitions. [2022-03-18 21:07:37,178 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 487 transitions. [2022-03-18 21:07:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 21:07:37,179 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:37,179 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:37,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 21:07:37,179 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:37,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1708077500, now seen corresponding path program 1 times [2022-03-18 21:07:37,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:37,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599584181] [2022-03-18 21:07:37,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:37,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:07:37,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:37,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599584181] [2022-03-18 21:07:37,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599584181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:37,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:37,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:37,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7923040] [2022-03-18 21:07:37,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:37,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:37,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:37,293 INFO L87 Difference]: Start difference. First operand 316 states and 487 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:39,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:39,720 INFO L93 Difference]: Finished difference Result 435 states and 661 transitions. [2022-03-18 21:07:39,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:39,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-18 21:07:39,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:39,721 INFO L225 Difference]: With dead ends: 435 [2022-03-18 21:07:39,721 INFO L226 Difference]: Without dead ends: 435 [2022-03-18 21:07:39,722 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:39,722 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:39,722 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 353 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:07:39,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-18 21:07:39,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 314. [2022-03-18 21:07:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 309 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 484 transitions. [2022-03-18 21:07:39,726 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 484 transitions. Word has length 122 [2022-03-18 21:07:39,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:39,727 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 484 transitions. [2022-03-18 21:07:39,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 484 transitions. [2022-03-18 21:07:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-18 21:07:39,728 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:39,728 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:39,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 21:07:39,728 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:39,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:39,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1257864063, now seen corresponding path program 1 times [2022-03-18 21:07:39,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:39,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057877422] [2022-03-18 21:07:39,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:39,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-18 21:07:39,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:39,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057877422] [2022-03-18 21:07:39,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057877422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:39,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:39,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:07:39,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527149121] [2022-03-18 21:07:39,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:39,833 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:07:39,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:07:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:07:39,833 INFO L87 Difference]: Start difference. First operand 314 states and 484 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:41,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:43,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:45,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:47,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:47,861 INFO L93 Difference]: Finished difference Result 385 states and 575 transitions. [2022-03-18 21:07:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:07:47,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 128 [2022-03-18 21:07:47,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:47,863 INFO L225 Difference]: With dead ends: 385 [2022-03-18 21:07:47,863 INFO L226 Difference]: Without dead ends: 385 [2022-03-18 21:07:47,863 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:07:47,863 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 140 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:47,864 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 325 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-18 21:07:47,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-03-18 21:07:47,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 314. [2022-03-18 21:07:47,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5372168284789645) internal successors, (475), 309 states have internal predecessors, (475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 479 transitions. [2022-03-18 21:07:47,868 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 479 transitions. Word has length 128 [2022-03-18 21:07:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:47,868 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 479 transitions. [2022-03-18 21:07:47,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 479 transitions. [2022-03-18 21:07:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 21:07:47,869 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:47,869 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:47,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 21:07:47,869 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash -365757816, now seen corresponding path program 1 times [2022-03-18 21:07:47,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:47,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605225984] [2022-03-18 21:07:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:47,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:07:47,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:47,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605225984] [2022-03-18 21:07:47,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605225984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:47,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:47,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:07:47,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519282104] [2022-03-18 21:07:47,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:47,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:07:47,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:07:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:07:47,960 INFO L87 Difference]: Start difference. First operand 314 states and 479 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:49,493 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 [] [2022-03-18 21:07:51,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:53,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:07:53,817 INFO L93 Difference]: Finished difference Result 597 states and 917 transitions. [2022-03-18 21:07:53,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:07:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-18 21:07:53,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:07:53,827 INFO L225 Difference]: With dead ends: 597 [2022-03-18 21:07:53,827 INFO L226 Difference]: Without dead ends: 597 [2022-03-18 21:07:53,828 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:07:53,828 INFO L912 BasicCegarLoop]: 370 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:07:53,828 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 565 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-18 21:07:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-18 21:07:53,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-03-18 21:07:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 592 states have (on average 1.5422297297297298) internal successors, (913), 592 states have internal predecessors, (913), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:53,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 917 transitions. [2022-03-18 21:07:53,847 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 917 transitions. Word has length 133 [2022-03-18 21:07:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:07:53,848 INFO L478 AbstractCegarLoop]: Abstraction has 597 states and 917 transitions. [2022-03-18 21:07:53,848 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 917 transitions. [2022-03-18 21:07:53,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 21:07:53,849 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:07:53,849 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:07:53,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 21:07:53,849 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:07:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:07:53,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2066498295, now seen corresponding path program 1 times [2022-03-18 21:07:53,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:07:53,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234795434] [2022-03-18 21:07:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:07:53,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:07:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:07:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:07:53,965 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:07:53,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:07:53,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234795434] [2022-03-18 21:07:53,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234795434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:07:53,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:07:53,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:07:53,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473196125] [2022-03-18 21:07:53,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:07:53,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:07:53,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:07:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:07:53,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:07:53,967 INFO L87 Difference]: Start difference. First operand 597 states and 917 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:07:55,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:57,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:07:59,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:00,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:00,238 INFO L93 Difference]: Finished difference Result 838 states and 1284 transitions. [2022-03-18 21:08:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:08:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-18 21:08:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:00,240 INFO L225 Difference]: With dead ends: 838 [2022-03-18 21:08:00,240 INFO L226 Difference]: Without dead ends: 838 [2022-03-18 21:08:00,241 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:08:00,241 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 138 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:00,241 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 438 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-18 21:08:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-03-18 21:08:00,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-03-18 21:08:00,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 833 states have (on average 1.5366146458583434) internal successors, (1280), 833 states have internal predecessors, (1280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1284 transitions. [2022-03-18 21:08:00,251 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1284 transitions. Word has length 133 [2022-03-18 21:08:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:00,251 INFO L478 AbstractCegarLoop]: Abstraction has 838 states and 1284 transitions. [2022-03-18 21:08:00,251 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1284 transitions. [2022-03-18 21:08:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 21:08:00,252 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:00,252 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:00,252 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 21:08:00,253 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:00,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash -212152758, now seen corresponding path program 1 times [2022-03-18 21:08:00,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:00,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586285009] [2022-03-18 21:08:00,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:00,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-18 21:08:00,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:00,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586285009] [2022-03-18 21:08:00,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586285009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:00,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:00,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:08:00,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672922005] [2022-03-18 21:08:00,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:00,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:08:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:00,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:08:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:08:00,331 INFO L87 Difference]: Start difference. First operand 838 states and 1284 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:02,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:02,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:02,603 INFO L93 Difference]: Finished difference Result 865 states and 1319 transitions. [2022-03-18 21:08:02,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:08:02,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-18 21:08:02,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:02,606 INFO L225 Difference]: With dead ends: 865 [2022-03-18 21:08:02,606 INFO L226 Difference]: Without dead ends: 865 [2022-03-18 21:08:02,606 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:08:02,607 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:02,607 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:08:02,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-03-18 21:08:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-03-18 21:08:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 860 states have (on average 1.5290697674418605) internal successors, (1315), 860 states have internal predecessors, (1315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:02,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1319 transitions. [2022-03-18 21:08:02,617 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1319 transitions. Word has length 133 [2022-03-18 21:08:02,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:02,618 INFO L478 AbstractCegarLoop]: Abstraction has 865 states and 1319 transitions. [2022-03-18 21:08:02,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:02,618 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1319 transitions. [2022-03-18 21:08:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 21:08:02,619 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:02,619 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:02,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 21:08:02,619 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:02,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash 864400651, now seen corresponding path program 1 times [2022-03-18 21:08:02,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:02,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206802520] [2022-03-18 21:08:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:02,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-18 21:08:02,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:02,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206802520] [2022-03-18 21:08:02,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206802520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:02,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:02,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:08:02,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803839449] [2022-03-18 21:08:02,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:02,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:08:02,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:02,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:08:02,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:08:02,693 INFO L87 Difference]: Start difference. First operand 865 states and 1319 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:04,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:04,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:04,933 INFO L93 Difference]: Finished difference Result 867 states and 1321 transitions. [2022-03-18 21:08:04,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:08:04,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-18 21:08:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:04,935 INFO L225 Difference]: With dead ends: 867 [2022-03-18 21:08:04,935 INFO L226 Difference]: Without dead ends: 867 [2022-03-18 21:08:04,935 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:08:04,936 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:04,936 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 21:08:04,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-03-18 21:08:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-03-18 21:08:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5278422273781902) internal successors, (1317), 862 states have internal predecessors, (1317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1321 transitions. [2022-03-18 21:08:04,945 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1321 transitions. Word has length 133 [2022-03-18 21:08:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:04,946 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1321 transitions. [2022-03-18 21:08:04,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1321 transitions. [2022-03-18 21:08:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-18 21:08:04,947 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:04,947 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:04,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 21:08:04,947 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1563265549, now seen corresponding path program 1 times [2022-03-18 21:08:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:04,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788584447] [2022-03-18 21:08:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:04,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:05,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:05,059 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-18 21:08:05,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:05,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788584447] [2022-03-18 21:08:05,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788584447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:05,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:05,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:05,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784366715] [2022-03-18 21:08:05,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:05,060 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:05,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:05,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:05,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:05,061 INFO L87 Difference]: Start difference. First operand 867 states and 1321 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:07,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:07,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:07,526 INFO L93 Difference]: Finished difference Result 1296 states and 1961 transitions. [2022-03-18 21:08:07,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:07,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-18 21:08:07,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:07,529 INFO L225 Difference]: With dead ends: 1296 [2022-03-18 21:08:07,529 INFO L226 Difference]: Without dead ends: 1296 [2022-03-18 21:08:07,529 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:07,530 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 110 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:07,530 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 325 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:07,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-03-18 21:08:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1083. [2022-03-18 21:08:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5510204081632653) internal successors, (1672), 1078 states have internal predecessors, (1672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1676 transitions. [2022-03-18 21:08:07,542 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1676 transitions. Word has length 213 [2022-03-18 21:08:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:07,542 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1676 transitions. [2022-03-18 21:08:07,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1676 transitions. [2022-03-18 21:08:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-18 21:08:07,544 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:07,544 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:07,544 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 21:08:07,544 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:07,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:07,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1764133390, now seen corresponding path program 1 times [2022-03-18 21:08:07,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:07,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906719442] [2022-03-18 21:08:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:07,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:07,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-18 21:08:07,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:07,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906719442] [2022-03-18 21:08:07,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906719442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:07,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:07,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:07,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139932595] [2022-03-18 21:08:07,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:07,649 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:07,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:07,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:07,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:07,650 INFO L87 Difference]: Start difference. First operand 1083 states and 1676 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:09,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:10,169 INFO L93 Difference]: Finished difference Result 1182 states and 1801 transitions. [2022-03-18 21:08:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-03-18 21:08:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:10,172 INFO L225 Difference]: With dead ends: 1182 [2022-03-18 21:08:10,172 INFO L226 Difference]: Without dead ends: 1182 [2022-03-18 21:08:10,172 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:10,173 INFO L912 BasicCegarLoop]: 260 mSDtfsCounter, 75 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:10,174 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 625 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:08:10,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-03-18 21:08:10,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1083. [2022-03-18 21:08:10,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.549165120593692) internal successors, (1670), 1078 states have internal predecessors, (1670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1674 transitions. [2022-03-18 21:08:10,185 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1674 transitions. Word has length 214 [2022-03-18 21:08:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:10,185 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1674 transitions. [2022-03-18 21:08:10,185 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1674 transitions. [2022-03-18 21:08:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-18 21:08:10,187 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:10,187 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:10,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 21:08:10,187 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:10,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:10,188 INFO L85 PathProgramCache]: Analyzing trace with hash -594230739, now seen corresponding path program 1 times [2022-03-18 21:08:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:10,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663320886] [2022-03-18 21:08:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:10,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:10,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:10,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663320886] [2022-03-18 21:08:10,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663320886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:10,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:10,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:10,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120608463] [2022-03-18 21:08:10,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:10,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:10,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:10,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:10,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:10,338 INFO L87 Difference]: Start difference. First operand 1083 states and 1674 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:12,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:12,785 INFO L93 Difference]: Finished difference Result 1180 states and 1797 transitions. [2022-03-18 21:08:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:12,785 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 228 [2022-03-18 21:08:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:12,788 INFO L225 Difference]: With dead ends: 1180 [2022-03-18 21:08:12,788 INFO L226 Difference]: Without dead ends: 1180 [2022-03-18 21:08:12,788 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:12,791 INFO L912 BasicCegarLoop]: 259 mSDtfsCounter, 96 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:12,791 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 623 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 589 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-03-18 21:08:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1083. [2022-03-18 21:08:12,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5473098330241188) internal successors, (1668), 1078 states have internal predecessors, (1668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1672 transitions. [2022-03-18 21:08:12,816 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1672 transitions. Word has length 228 [2022-03-18 21:08:12,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:12,816 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1672 transitions. [2022-03-18 21:08:12,816 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:12,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1672 transitions. [2022-03-18 21:08:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-03-18 21:08:12,818 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:12,818 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:12,818 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 21:08:12,818 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:12,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1637329481, now seen corresponding path program 1 times [2022-03-18 21:08:12,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:12,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966346174] [2022-03-18 21:08:12,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:12,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:12,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966346174] [2022-03-18 21:08:12,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966346174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:12,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:12,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119921226] [2022-03-18 21:08:12,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:12,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:12,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:12,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:12,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:12,964 INFO L87 Difference]: Start difference. First operand 1083 states and 1672 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:14,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:15,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:15,398 INFO L93 Difference]: Finished difference Result 1160 states and 1769 transitions. [2022-03-18 21:08:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:15,398 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 232 [2022-03-18 21:08:15,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:15,401 INFO L225 Difference]: With dead ends: 1160 [2022-03-18 21:08:15,401 INFO L226 Difference]: Without dead ends: 1160 [2022-03-18 21:08:15,401 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:15,401 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 92 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:15,402 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 609 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-03-18 21:08:15,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-03-18 21:08:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5454545454545454) internal successors, (1666), 1078 states have internal predecessors, (1666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1670 transitions. [2022-03-18 21:08:15,412 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1670 transitions. Word has length 232 [2022-03-18 21:08:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:15,412 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1670 transitions. [2022-03-18 21:08:15,412 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1670 transitions. [2022-03-18 21:08:15,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-18 21:08:15,414 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:15,414 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:15,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 21:08:15,414 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:15,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:15,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1788020019, now seen corresponding path program 1 times [2022-03-18 21:08:15,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:15,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591062599] [2022-03-18 21:08:15,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:15,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:15,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:15,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:15,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591062599] [2022-03-18 21:08:15,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591062599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:15,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:15,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:15,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805862740] [2022-03-18 21:08:15,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:15,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:15,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:15,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:15,517 INFO L87 Difference]: Start difference. First operand 1083 states and 1670 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:17,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:17,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:17,959 INFO L93 Difference]: Finished difference Result 1287 states and 1926 transitions. [2022-03-18 21:08:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:17,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-18 21:08:17,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:17,963 INFO L225 Difference]: With dead ends: 1287 [2022-03-18 21:08:17,963 INFO L226 Difference]: Without dead ends: 1287 [2022-03-18 21:08:17,963 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:17,964 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 127 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:17,964 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:17,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-03-18 21:08:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1083. [2022-03-18 21:08:17,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5324675324675325) internal successors, (1652), 1078 states have internal predecessors, (1652), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1656 transitions. [2022-03-18 21:08:17,997 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1656 transitions. Word has length 236 [2022-03-18 21:08:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:17,997 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1656 transitions. [2022-03-18 21:08:17,998 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1656 transitions. [2022-03-18 21:08:17,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-18 21:08:17,999 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:17,999 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:17,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 21:08:18,000 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:18,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:18,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2083420877, now seen corresponding path program 1 times [2022-03-18 21:08:18,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:18,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193482324] [2022-03-18 21:08:18,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:18,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:18,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:18,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:18,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193482324] [2022-03-18 21:08:18,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193482324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:18,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:18,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:18,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356283801] [2022-03-18 21:08:18,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:18,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:18,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:18,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:18,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:18,101 INFO L87 Difference]: Start difference. First operand 1083 states and 1656 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:20,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:20,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:20,550 INFO L93 Difference]: Finished difference Result 1160 states and 1753 transitions. [2022-03-18 21:08:20,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:20,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-18 21:08:20,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:20,553 INFO L225 Difference]: With dead ends: 1160 [2022-03-18 21:08:20,553 INFO L226 Difference]: Without dead ends: 1160 [2022-03-18 21:08:20,554 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:20,554 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 80 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:20,554 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 605 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:20,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-03-18 21:08:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-03-18 21:08:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.530612244897959) internal successors, (1650), 1078 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1654 transitions. [2022-03-18 21:08:20,570 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1654 transitions. Word has length 236 [2022-03-18 21:08:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:20,570 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1654 transitions. [2022-03-18 21:08:20,570 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1654 transitions. [2022-03-18 21:08:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-18 21:08:20,572 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:20,572 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:20,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 21:08:20,573 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:20,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash 993793841, now seen corresponding path program 1 times [2022-03-18 21:08:20,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:20,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191686793] [2022-03-18 21:08:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:20,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:20,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:20,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:20,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191686793] [2022-03-18 21:08:20,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191686793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:20,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:20,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:20,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740850971] [2022-03-18 21:08:20,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:20,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:20,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:20,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:20,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:20,747 INFO L87 Difference]: Start difference. First operand 1083 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:22,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:23,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:23,212 INFO L93 Difference]: Finished difference Result 1150 states and 1737 transitions. [2022-03-18 21:08:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:23,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-03-18 21:08:23,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:23,215 INFO L225 Difference]: With dead ends: 1150 [2022-03-18 21:08:23,215 INFO L226 Difference]: Without dead ends: 1150 [2022-03-18 21:08:23,215 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:23,215 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 76 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:23,216 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 597 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:23,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-03-18 21:08:23,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1083. [2022-03-18 21:08:23,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.528756957328386) internal successors, (1648), 1078 states have internal predecessors, (1648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:23,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1652 transitions. [2022-03-18 21:08:23,227 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1652 transitions. Word has length 237 [2022-03-18 21:08:23,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:23,227 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1652 transitions. [2022-03-18 21:08:23,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1652 transitions. [2022-03-18 21:08:23,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-18 21:08:23,229 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:23,229 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:23,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 21:08:23,229 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:23,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:23,230 INFO L85 PathProgramCache]: Analyzing trace with hash 724224944, now seen corresponding path program 1 times [2022-03-18 21:08:23,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:23,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253643431] [2022-03-18 21:08:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:23,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:23,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:23,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253643431] [2022-03-18 21:08:23,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253643431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:23,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:23,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:23,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433169891] [2022-03-18 21:08:23,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:23,335 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:23,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:23,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:23,335 INFO L87 Difference]: Start difference. First operand 1083 states and 1652 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:25,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:25,813 INFO L93 Difference]: Finished difference Result 1142 states and 1725 transitions. [2022-03-18 21:08:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2022-03-18 21:08:25,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:25,816 INFO L225 Difference]: With dead ends: 1142 [2022-03-18 21:08:25,816 INFO L226 Difference]: Without dead ends: 1142 [2022-03-18 21:08:25,816 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:25,816 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 69 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:25,816 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 589 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:08:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-18 21:08:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-03-18 21:08:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5269016697588127) internal successors, (1646), 1078 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1650 transitions. [2022-03-18 21:08:25,826 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1650 transitions. Word has length 237 [2022-03-18 21:08:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:25,826 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1650 transitions. [2022-03-18 21:08:25,826 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1650 transitions. [2022-03-18 21:08:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-18 21:08:25,828 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:25,828 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:25,828 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 21:08:25,828 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:25,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:25,828 INFO L85 PathProgramCache]: Analyzing trace with hash 799309157, now seen corresponding path program 1 times [2022-03-18 21:08:25,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:25,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113000688] [2022-03-18 21:08:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:25,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:25,957 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:25,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:25,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113000688] [2022-03-18 21:08:25,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113000688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:25,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:25,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:25,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40292965] [2022-03-18 21:08:25,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:25,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:25,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:25,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:25,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:25,958 INFO L87 Difference]: Start difference. First operand 1083 states and 1650 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:27,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:28,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:28,413 INFO L93 Difference]: Finished difference Result 1142 states and 1723 transitions. [2022-03-18 21:08:28,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:28,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-18 21:08:28,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:28,416 INFO L225 Difference]: With dead ends: 1142 [2022-03-18 21:08:28,416 INFO L226 Difference]: Without dead ends: 1142 [2022-03-18 21:08:28,416 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:28,416 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 65 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:28,416 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 587 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:28,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-18 21:08:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-03-18 21:08:28,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.5250463821892393) internal successors, (1644), 1078 states have internal predecessors, (1644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:28,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1648 transitions. [2022-03-18 21:08:28,425 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1648 transitions. Word has length 239 [2022-03-18 21:08:28,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:28,425 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1648 transitions. [2022-03-18 21:08:28,425 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:28,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1648 transitions. [2022-03-18 21:08:28,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-18 21:08:28,428 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:28,428 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:28,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 21:08:28,428 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:28,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:28,429 INFO L85 PathProgramCache]: Analyzing trace with hash 858623079, now seen corresponding path program 1 times [2022-03-18 21:08:28,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:28,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897116226] [2022-03-18 21:08:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:28,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:28,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897116226] [2022-03-18 21:08:28,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897116226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:28,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:28,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582542086] [2022-03-18 21:08:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:28,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:28,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:28,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:28,554 INFO L87 Difference]: Start difference. First operand 1083 states and 1648 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:30,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:30,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:30,986 INFO L93 Difference]: Finished difference Result 1126 states and 1695 transitions. [2022-03-18 21:08:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:30,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-18 21:08:30,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:30,989 INFO L225 Difference]: With dead ends: 1126 [2022-03-18 21:08:30,989 INFO L226 Difference]: Without dead ends: 1126 [2022-03-18 21:08:30,990 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:30,990 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 54 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:30,990 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 577 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-03-18 21:08:30,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1083. [2022-03-18 21:08:30,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.523191094619666) internal successors, (1642), 1078 states have internal predecessors, (1642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:30,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1646 transitions. [2022-03-18 21:08:30,999 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1646 transitions. Word has length 240 [2022-03-18 21:08:31,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:31,000 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1646 transitions. [2022-03-18 21:08:31,000 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:31,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1646 transitions. [2022-03-18 21:08:31,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-18 21:08:31,003 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:31,003 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:31,003 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 21:08:31,003 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:31,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1164096122, now seen corresponding path program 1 times [2022-03-18 21:08:31,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:31,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437016058] [2022-03-18 21:08:31,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:31,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:31,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:31,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:31,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437016058] [2022-03-18 21:08:31,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437016058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:31,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:31,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:31,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345743802] [2022-03-18 21:08:31,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:31,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:31,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:31,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:31,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:31,119 INFO L87 Difference]: Start difference. First operand 1083 states and 1646 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:33,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:33,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:33,572 INFO L93 Difference]: Finished difference Result 1413 states and 2109 transitions. [2022-03-18 21:08:33,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:33,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-18 21:08:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:33,576 INFO L225 Difference]: With dead ends: 1413 [2022-03-18 21:08:33,576 INFO L226 Difference]: Without dead ends: 1413 [2022-03-18 21:08:33,576 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:33,576 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 119 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:33,577 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 325 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:33,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-03-18 21:08:33,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1173. [2022-03-18 21:08:33,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5171232876712328) internal successors, (1772), 1168 states have internal predecessors, (1772), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1776 transitions. [2022-03-18 21:08:33,587 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1776 transitions. Word has length 241 [2022-03-18 21:08:33,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:33,587 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1776 transitions. [2022-03-18 21:08:33,587 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:33,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1776 transitions. [2022-03-18 21:08:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-18 21:08:33,589 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:33,589 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:33,589 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 21:08:33,589 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2061310594, now seen corresponding path program 1 times [2022-03-18 21:08:33,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:33,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129384090] [2022-03-18 21:08:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:33,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:33,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129384090] [2022-03-18 21:08:33,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129384090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:33,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:33,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004723118] [2022-03-18 21:08:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:33,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:33,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:33,729 INFO L87 Difference]: Start difference. First operand 1173 states and 1776 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:35,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:37,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:39,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:41,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:41,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:41,764 INFO L93 Difference]: Finished difference Result 1216 states and 1823 transitions. [2022-03-18 21:08:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:41,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-03-18 21:08:41,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:41,767 INFO L225 Difference]: With dead ends: 1216 [2022-03-18 21:08:41,767 INFO L226 Difference]: Without dead ends: 1216 [2022-03-18 21:08:41,767 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:41,768 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 55 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:41,768 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 573 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 493 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-18 21:08:41,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-03-18 21:08:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1173. [2022-03-18 21:08:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5154109589041096) internal successors, (1770), 1168 states have internal predecessors, (1770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1774 transitions. [2022-03-18 21:08:41,777 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1774 transitions. Word has length 242 [2022-03-18 21:08:41,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:41,778 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1774 transitions. [2022-03-18 21:08:41,778 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:41,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1774 transitions. [2022-03-18 21:08:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-18 21:08:41,793 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:41,793 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:41,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 21:08:41,793 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:41,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash -691949702, now seen corresponding path program 1 times [2022-03-18 21:08:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:41,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140905762] [2022-03-18 21:08:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:41,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:41,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:41,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140905762] [2022-03-18 21:08:41,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140905762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:41,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:41,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:41,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846010925] [2022-03-18 21:08:41,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:41,913 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:41,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:41,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:41,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:41,914 INFO L87 Difference]: Start difference. First operand 1173 states and 1774 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:44,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:46,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:48,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:48,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:48,631 INFO L93 Difference]: Finished difference Result 1212 states and 1817 transitions. [2022-03-18 21:08:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:48,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-03-18 21:08:48,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:48,634 INFO L225 Difference]: With dead ends: 1212 [2022-03-18 21:08:48,634 INFO L226 Difference]: Without dead ends: 1212 [2022-03-18 21:08:48,634 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:48,635 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 48 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:48,635 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 569 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 21:08:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-03-18 21:08:48,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1173. [2022-03-18 21:08:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5136986301369864) internal successors, (1768), 1168 states have internal predecessors, (1768), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1772 transitions. [2022-03-18 21:08:48,653 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1772 transitions. Word has length 242 [2022-03-18 21:08:48,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:48,671 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1772 transitions. [2022-03-18 21:08:48,671 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:48,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1772 transitions. [2022-03-18 21:08:48,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-18 21:08:48,673 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:48,674 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:48,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 21:08:48,674 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:48,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:48,674 INFO L85 PathProgramCache]: Analyzing trace with hash 273964732, now seen corresponding path program 1 times [2022-03-18 21:08:48,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:48,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327649344] [2022-03-18 21:08:48,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:48,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:48,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:48,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327649344] [2022-03-18 21:08:48,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327649344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:48,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:48,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:48,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088061751] [2022-03-18 21:08:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:48,838 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:48,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:48,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:48,838 INFO L87 Difference]: Start difference. First operand 1173 states and 1772 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:50,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:51,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:51,233 INFO L93 Difference]: Finished difference Result 1208 states and 1809 transitions. [2022-03-18 21:08:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:51,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 243 [2022-03-18 21:08:51,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:51,237 INFO L225 Difference]: With dead ends: 1208 [2022-03-18 21:08:51,237 INFO L226 Difference]: Without dead ends: 1208 [2022-03-18 21:08:51,237 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:51,238 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 50 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:51,238 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 567 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:51,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-03-18 21:08:51,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1173. [2022-03-18 21:08:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1168 states have (on average 1.5119863013698631) internal successors, (1766), 1168 states have internal predecessors, (1766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:51,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1770 transitions. [2022-03-18 21:08:51,251 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1770 transitions. Word has length 243 [2022-03-18 21:08:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:51,251 INFO L478 AbstractCegarLoop]: Abstraction has 1173 states and 1770 transitions. [2022-03-18 21:08:51,251 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1770 transitions. [2022-03-18 21:08:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-18 21:08:51,253 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:51,253 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:51,253 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 21:08:51,253 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:51,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1984975413, now seen corresponding path program 1 times [2022-03-18 21:08:51,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:51,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063338199] [2022-03-18 21:08:51,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:51,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:51,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:51,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:51,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063338199] [2022-03-18 21:08:51,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063338199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:51,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:51,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:51,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915493675] [2022-03-18 21:08:51,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:51,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:51,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:51,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:51,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:51,366 INFO L87 Difference]: Start difference. First operand 1173 states and 1770 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:53,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:53,798 INFO L93 Difference]: Finished difference Result 1503 states and 2239 transitions. [2022-03-18 21:08:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:53,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2022-03-18 21:08:53,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:53,802 INFO L225 Difference]: With dead ends: 1503 [2022-03-18 21:08:53,802 INFO L226 Difference]: Without dead ends: 1503 [2022-03-18 21:08:53,802 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:53,803 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 116 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:53,803 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-03-18 21:08:53,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1272. [2022-03-18 21:08:53,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.5130228887134964) internal successors, (1917), 1267 states have internal predecessors, (1917), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:53,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1921 transitions. [2022-03-18 21:08:53,825 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1921 transitions. Word has length 245 [2022-03-18 21:08:53,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:53,826 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1921 transitions. [2022-03-18 21:08:53,826 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:53,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1921 transitions. [2022-03-18 21:08:53,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-18 21:08:53,827 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:53,827 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:53,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 21:08:53,828 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:53,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:53,838 INFO L85 PathProgramCache]: Analyzing trace with hash -443370408, now seen corresponding path program 1 times [2022-03-18 21:08:53,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:53,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116316419] [2022-03-18 21:08:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:53,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:53,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:53,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116316419] [2022-03-18 21:08:53,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116316419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:53,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:53,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661243037] [2022-03-18 21:08:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:53,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:53,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:53,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:53,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:53,964 INFO L87 Difference]: Start difference. First operand 1272 states and 1921 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:55,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:56,341 INFO L93 Difference]: Finished difference Result 1299 states and 1948 transitions. [2022-03-18 21:08:56,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:56,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-18 21:08:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:56,344 INFO L225 Difference]: With dead ends: 1299 [2022-03-18 21:08:56,344 INFO L226 Difference]: Without dead ends: 1299 [2022-03-18 21:08:56,344 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:56,344 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 38 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:56,345 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2022-03-18 21:08:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1272. [2022-03-18 21:08:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1267 states have (on average 1.511444356748224) internal successors, (1915), 1267 states have internal predecessors, (1915), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1919 transitions. [2022-03-18 21:08:56,359 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1919 transitions. Word has length 246 [2022-03-18 21:08:56,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:56,359 INFO L478 AbstractCegarLoop]: Abstraction has 1272 states and 1919 transitions. [2022-03-18 21:08:56,359 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1919 transitions. [2022-03-18 21:08:56,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-18 21:08:56,361 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:56,361 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 21:08:56,361 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 21:08:56,361 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:56,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1923509620, now seen corresponding path program 1 times [2022-03-18 21:08:56,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:56,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712800862] [2022-03-18 21:08:56,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:56,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:56,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712800862] [2022-03-18 21:08:56,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712800862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:56,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:56,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:56,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917177301] [2022-03-18 21:08:56,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:56,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:56,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:56,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:56,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:56,512 INFO L87 Difference]: Start difference. First operand 1272 states and 1919 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:58,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:58,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:58,943 INFO L93 Difference]: Finished difference Result 1602 states and 2382 transitions. [2022-03-18 21:08:58,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:58,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-18 21:08:58,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:58,946 INFO L225 Difference]: With dead ends: 1602 [2022-03-18 21:08:58,946 INFO L226 Difference]: Without dead ends: 1602 [2022-03-18 21:08:58,946 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:58,947 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:58,947 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:08:58,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-03-18 21:08:58,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1377. [2022-03-18 21:08:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.510204081632653) internal successors, (2072), 1372 states have internal predecessors, (2072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2076 transitions. [2022-03-18 21:08:58,961 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2076 transitions. Word has length 246 [2022-03-18 21:08:58,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:58,962 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2076 transitions. [2022-03-18 21:08:58,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2076 transitions. [2022-03-18 21:08:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-18 21:08:58,963 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:58,964 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2022-03-18 21:08:58,964 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 21:08:58,964 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:58,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:58,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1170471363, now seen corresponding path program 1 times [2022-03-18 21:08:58,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:58,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064155149] [2022-03-18 21:08:58,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:58,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:59,096 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-18 21:08:59,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:59,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064155149] [2022-03-18 21:08:59,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064155149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:59,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:59,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:59,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259906624] [2022-03-18 21:08:59,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:59,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:59,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:59,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:59,098 INFO L87 Difference]: Start difference. First operand 1377 states and 2076 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:01,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:01,482 INFO L93 Difference]: Finished difference Result 1400 states and 2099 transitions. [2022-03-18 21:09:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:01,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-18 21:09:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:01,485 INFO L225 Difference]: With dead ends: 1400 [2022-03-18 21:09:01,485 INFO L226 Difference]: Without dead ends: 1400 [2022-03-18 21:09:01,485 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:01,485 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:01,485 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 551 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2022-03-18 21:09:01,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1377. [2022-03-18 21:09:01,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1372 states have (on average 1.5087463556851313) internal successors, (2070), 1372 states have internal predecessors, (2070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:01,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2074 transitions. [2022-03-18 21:09:01,495 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2074 transitions. Word has length 247 [2022-03-18 21:09:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:01,495 INFO L478 AbstractCegarLoop]: Abstraction has 1377 states and 2074 transitions. [2022-03-18 21:09:01,495 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2074 transitions. [2022-03-18 21:09:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-18 21:09:01,497 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:01,497 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-18 21:09:01,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 21:09:01,497 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1312124425, now seen corresponding path program 1 times [2022-03-18 21:09:01,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:01,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643551575] [2022-03-18 21:09:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-18 21:09:01,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:01,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643551575] [2022-03-18 21:09:01,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643551575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:01,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:01,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:01,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950834530] [2022-03-18 21:09:01,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:01,606 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:01,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:01,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:01,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:01,607 INFO L87 Difference]: Start difference. First operand 1377 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:03,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:04,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:04,035 INFO L93 Difference]: Finished difference Result 1707 states and 2534 transitions. [2022-03-18 21:09:04,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:04,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-18 21:09:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:04,037 INFO L225 Difference]: With dead ends: 1707 [2022-03-18 21:09:04,037 INFO L226 Difference]: Without dead ends: 1707 [2022-03-18 21:09:04,037 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:04,038 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 112 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:04,038 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:04,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-03-18 21:09:04,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1488. [2022-03-18 21:09:04,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5077545515846258) internal successors, (2236), 1483 states have internal predecessors, (2236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:04,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2240 transitions. [2022-03-18 21:09:04,048 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2240 transitions. Word has length 247 [2022-03-18 21:09:04,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:04,049 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2240 transitions. [2022-03-18 21:09:04,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:04,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2240 transitions. [2022-03-18 21:09:04,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-03-18 21:09:04,050 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:04,051 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-18 21:09:04,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 21:09:04,051 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:04,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:04,051 INFO L85 PathProgramCache]: Analyzing trace with hash -89380643, now seen corresponding path program 1 times [2022-03-18 21:09:04,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:04,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443042146] [2022-03-18 21:09:04,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:04,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-18 21:09:04,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:04,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443042146] [2022-03-18 21:09:04,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443042146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:04,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:04,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:04,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252029054] [2022-03-18 21:09:04,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:04,187 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:04,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:04,187 INFO L87 Difference]: Start difference. First operand 1488 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:06,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:06,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:06,557 INFO L93 Difference]: Finished difference Result 1507 states and 2259 transitions. [2022-03-18 21:09:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:06,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-03-18 21:09:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:06,560 INFO L225 Difference]: With dead ends: 1507 [2022-03-18 21:09:06,560 INFO L226 Difference]: Without dead ends: 1507 [2022-03-18 21:09:06,560 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:06,560 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 28 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:06,560 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 545 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:06,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-03-18 21:09:06,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1488. [2022-03-18 21:09:06,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1483 states have (on average 1.5064059339177343) internal successors, (2234), 1483 states have internal predecessors, (2234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2238 transitions. [2022-03-18 21:09:06,571 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2238 transitions. Word has length 248 [2022-03-18 21:09:06,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:06,571 INFO L478 AbstractCegarLoop]: Abstraction has 1488 states and 2238 transitions. [2022-03-18 21:09:06,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:06,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2238 transitions. [2022-03-18 21:09:06,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-03-18 21:09:06,573 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:06,573 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:09:06,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 21:09:06,573 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:06,573 INFO L85 PathProgramCache]: Analyzing trace with hash -869309252, now seen corresponding path program 1 times [2022-03-18 21:09:06,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:06,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947829367] [2022-03-18 21:09:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:06,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-18 21:09:06,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:06,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947829367] [2022-03-18 21:09:06,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947829367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:06,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:06,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:06,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093404755] [2022-03-18 21:09:06,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:06,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:06,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:06,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:06,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:06,724 INFO L87 Difference]: Start difference. First operand 1488 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:08,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:09,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:09,122 INFO L93 Difference]: Finished difference Result 1818 states and 2673 transitions. [2022-03-18 21:09:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:09,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 253 [2022-03-18 21:09:09,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:09,133 INFO L225 Difference]: With dead ends: 1818 [2022-03-18 21:09:09,133 INFO L226 Difference]: Without dead ends: 1818 [2022-03-18 21:09:09,133 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:09,134 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:09,134 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 362 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:09,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2022-03-18 21:09:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1545. [2022-03-18 21:09:09,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4837662337662338) internal successors, (2285), 1540 states have internal predecessors, (2285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:09,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2289 transitions. [2022-03-18 21:09:09,146 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2289 transitions. Word has length 253 [2022-03-18 21:09:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:09,146 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2289 transitions. [2022-03-18 21:09:09,146 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:09,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2289 transitions. [2022-03-18 21:09:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-03-18 21:09:09,148 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:09,148 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:09:09,148 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 21:09:09,148 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash -48354360, now seen corresponding path program 1 times [2022-03-18 21:09:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:09,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212389271] [2022-03-18 21:09:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:09,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-18 21:09:09,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:09,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212389271] [2022-03-18 21:09:09,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212389271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:09,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:09,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:09,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316552656] [2022-03-18 21:09:09,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:09,258 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:09,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:09,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:09,258 INFO L87 Difference]: Start difference. First operand 1545 states and 2289 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:11,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:11,649 INFO L93 Difference]: Finished difference Result 1564 states and 2308 transitions. [2022-03-18 21:09:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:11,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-03-18 21:09:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:11,651 INFO L225 Difference]: With dead ends: 1564 [2022-03-18 21:09:11,651 INFO L226 Difference]: Without dead ends: 1564 [2022-03-18 21:09:11,651 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:11,652 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 44 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:11,652 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 541 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:11,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-03-18 21:09:11,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1545. [2022-03-18 21:09:11,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4824675324675325) internal successors, (2283), 1540 states have internal predecessors, (2283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:11,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2287 transitions. [2022-03-18 21:09:11,663 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2287 transitions. Word has length 254 [2022-03-18 21:09:11,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:11,663 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2287 transitions. [2022-03-18 21:09:11,663 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:11,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2287 transitions. [2022-03-18 21:09:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-18 21:09:11,665 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:11,665 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:11,665 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 21:09:11,665 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:11,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:11,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1367824325, now seen corresponding path program 1 times [2022-03-18 21:09:11,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:11,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689022174] [2022-03-18 21:09:11,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:11,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-18 21:09:11,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:11,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689022174] [2022-03-18 21:09:11,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689022174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:11,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:11,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:11,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863462074] [2022-03-18 21:09:11,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:11,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:11,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:11,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:11,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:11,793 INFO L87 Difference]: Start difference. First operand 1545 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:13,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:15,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:17,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:19,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:20,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:20,047 INFO L93 Difference]: Finished difference Result 1557 states and 2298 transitions. [2022-03-18 21:09:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:20,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-03-18 21:09:20,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:20,050 INFO L225 Difference]: With dead ends: 1557 [2022-03-18 21:09:20,050 INFO L226 Difference]: Without dead ends: 1557 [2022-03-18 21:09:20,050 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:20,050 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 40 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:20,050 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 535 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-18 21:09:20,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2022-03-18 21:09:20,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1545. [2022-03-18 21:09:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1540 states have (on average 1.4811688311688311) internal successors, (2281), 1540 states have internal predecessors, (2281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2285 transitions. [2022-03-18 21:09:20,063 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2285 transitions. Word has length 255 [2022-03-18 21:09:20,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:20,063 INFO L478 AbstractCegarLoop]: Abstraction has 1545 states and 2285 transitions. [2022-03-18 21:09:20,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:20,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2285 transitions. [2022-03-18 21:09:20,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-18 21:09:20,065 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:20,066 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:20,066 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 21:09:20,066 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:20,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1074570741, now seen corresponding path program 1 times [2022-03-18 21:09:20,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:20,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745560983] [2022-03-18 21:09:20,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:20,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:20,207 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-18 21:09:20,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:20,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745560983] [2022-03-18 21:09:20,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745560983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:20,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:20,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:20,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833362873] [2022-03-18 21:09:20,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:20,208 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:20,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:20,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:20,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:20,209 INFO L87 Difference]: Start difference. First operand 1545 states and 2285 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:22,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:22,653 INFO L93 Difference]: Finished difference Result 1813 states and 2657 transitions. [2022-03-18 21:09:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:22,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-18 21:09:22,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:22,672 INFO L225 Difference]: With dead ends: 1813 [2022-03-18 21:09:22,672 INFO L226 Difference]: Without dead ends: 1813 [2022-03-18 21:09:22,672 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:22,672 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 64 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:22,672 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 622 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 597 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:22,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-03-18 21:09:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1670. [2022-03-18 21:09:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1665 states have (on average 1.4828828828828828) internal successors, (2469), 1665 states have internal predecessors, (2469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2473 transitions. [2022-03-18 21:09:22,684 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2473 transitions. Word has length 257 [2022-03-18 21:09:22,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:22,684 INFO L478 AbstractCegarLoop]: Abstraction has 1670 states and 2473 transitions. [2022-03-18 21:09:22,684 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:22,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2473 transitions. [2022-03-18 21:09:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-18 21:09:22,687 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:22,687 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:22,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 21:09:22,687 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:22,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:22,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2011154316, now seen corresponding path program 1 times [2022-03-18 21:09:22,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:22,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339829945] [2022-03-18 21:09:22,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:22,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-03-18 21:09:22,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:22,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339829945] [2022-03-18 21:09:22,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339829945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:22,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:22,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:09:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347564558] [2022-03-18 21:09:22,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:22,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:09:22,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:22,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:09:22,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:09:22,838 INFO L87 Difference]: Start difference. First operand 1670 states and 2473 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:24,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:25,257 INFO L93 Difference]: Finished difference Result 2187 states and 3236 transitions. [2022-03-18 21:09:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:09:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 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 257 [2022-03-18 21:09:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:25,261 INFO L225 Difference]: With dead ends: 2187 [2022-03-18 21:09:25,261 INFO L226 Difference]: Without dead ends: 2187 [2022-03-18 21:09:25,261 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:09:25,261 INFO L912 BasicCegarLoop]: 376 mSDtfsCounter, 128 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:25,261 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 571 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:25,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-03-18 21:09:25,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2187. [2022-03-18 21:09:25,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2182 states have (on average 1.4812098991750688) internal successors, (3232), 2182 states have internal predecessors, (3232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3236 transitions. [2022-03-18 21:09:25,277 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3236 transitions. Word has length 257 [2022-03-18 21:09:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:25,277 INFO L478 AbstractCegarLoop]: Abstraction has 2187 states and 3236 transitions. [2022-03-18 21:09:25,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:25,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3236 transitions. [2022-03-18 21:09:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-18 21:09:25,281 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:25,281 INFO L500 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-18 21:09:25,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-18 21:09:25,281 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:25,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:25,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2076861001, now seen corresponding path program 1 times [2022-03-18 21:09:25,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:25,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6507922] [2022-03-18 21:09:25,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:25,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:25,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-18 21:09:25,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:25,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6507922] [2022-03-18 21:09:25,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6507922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:25,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:25,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:09:25,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086572262] [2022-03-18 21:09:25,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:25,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:09:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:25,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:09:25,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:09:25,636 INFO L87 Difference]: Start difference. First operand 2187 states and 3236 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:27,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:28,967 INFO L93 Difference]: Finished difference Result 4189 states and 6238 transitions. [2022-03-18 21:09:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:09:28,969 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 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 330 [2022-03-18 21:09:28,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:28,974 INFO L225 Difference]: With dead ends: 4189 [2022-03-18 21:09:28,974 INFO L226 Difference]: Without dead ends: 4189 [2022-03-18 21:09:28,975 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:09:28,977 INFO L912 BasicCegarLoop]: 331 mSDtfsCounter, 203 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:28,977 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1300 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1480 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 21:09:28,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4189 states. [2022-03-18 21:09:29,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4189 to 3938. [2022-03-18 21:09:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3933 states have (on average 1.5026697177726926) internal successors, (5910), 3933 states have internal predecessors, (5910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5914 transitions. [2022-03-18 21:09:29,010 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5914 transitions. Word has length 330 [2022-03-18 21:09:29,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:29,010 INFO L478 AbstractCegarLoop]: Abstraction has 3938 states and 5914 transitions. [2022-03-18 21:09:29,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5914 transitions. [2022-03-18 21:09:29,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-18 21:09:29,016 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:29,016 INFO L500 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, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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] [2022-03-18 21:09:29,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-18 21:09:29,016 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:29,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash 674782559, now seen corresponding path program 1 times [2022-03-18 21:09:29,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:29,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774196815] [2022-03-18 21:09:29,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:29,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-18 21:09:29,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:29,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774196815] [2022-03-18 21:09:29,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774196815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:29,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:29,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:09:29,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846598815] [2022-03-18 21:09:29,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:29,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:09:29,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:29,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:09:29,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:09:29,280 INFO L87 Difference]: Start difference. First operand 3938 states and 5914 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:31,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:32,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:32,454 INFO L93 Difference]: Finished difference Result 6068 states and 8920 transitions. [2022-03-18 21:09:32,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-18 21:09:32,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 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 331 [2022-03-18 21:09:32,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:32,462 INFO L225 Difference]: With dead ends: 6068 [2022-03-18 21:09:32,462 INFO L226 Difference]: Without dead ends: 6068 [2022-03-18 21:09:32,462 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-18 21:09:32,462 INFO L912 BasicCegarLoop]: 304 mSDtfsCounter, 503 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 76 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:32,462 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 1090 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1304 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-03-18 21:09:32,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2022-03-18 21:09:32,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3980. [2022-03-18 21:09:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3975 states have (on average 1.5006289308176102) internal successors, (5965), 3975 states have internal predecessors, (5965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5969 transitions. [2022-03-18 21:09:32,531 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5969 transitions. Word has length 331 [2022-03-18 21:09:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:32,532 INFO L478 AbstractCegarLoop]: Abstraction has 3980 states and 5969 transitions. [2022-03-18 21:09:32,532 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5969 transitions. [2022-03-18 21:09:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-18 21:09:32,536 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:32,536 INFO L500 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2022-03-18 21:09:32,537 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-18 21:09:32,537 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:32,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:32,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2119834520, now seen corresponding path program 1 times [2022-03-18 21:09:32,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:32,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685080345] [2022-03-18 21:09:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:32,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:32,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-18 21:09:32,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:32,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685080345] [2022-03-18 21:09:32,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685080345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:32,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:32,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:32,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277210346] [2022-03-18 21:09:32,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:32,667 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:32,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:32,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:32,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:32,668 INFO L87 Difference]: Start difference. First operand 3980 states and 5969 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:34,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:35,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:35,137 INFO L93 Difference]: Finished difference Result 4282 states and 6355 transitions. [2022-03-18 21:09:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:35,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 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 331 [2022-03-18 21:09:35,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:35,143 INFO L225 Difference]: With dead ends: 4282 [2022-03-18 21:09:35,143 INFO L226 Difference]: Without dead ends: 4266 [2022-03-18 21:09:35,143 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:35,143 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 58 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:35,143 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 612 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 578 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:09:35,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-03-18 21:09:35,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3968. [2022-03-18 21:09:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.5001261670451678) internal successors, (5945), 3963 states have internal predecessors, (5945), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:35,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5949 transitions. [2022-03-18 21:09:35,190 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5949 transitions. Word has length 331 [2022-03-18 21:09:35,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:35,191 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5949 transitions. [2022-03-18 21:09:35,191 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:35,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5949 transitions. [2022-03-18 21:09:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-03-18 21:09:35,196 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:35,196 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:35,196 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-18 21:09:35,196 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:35,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1801634778, now seen corresponding path program 1 times [2022-03-18 21:09:35,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:35,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068615683] [2022-03-18 21:09:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:35,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:35,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 708 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-18 21:09:35,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:35,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068615683] [2022-03-18 21:09:35,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068615683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:35,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:35,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:35,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622543165] [2022-03-18 21:09:35,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:35,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:35,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:35,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:35,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:35,339 INFO L87 Difference]: Start difference. First operand 3968 states and 5949 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:37,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:37,874 INFO L93 Difference]: Finished difference Result 4250 states and 6311 transitions. [2022-03-18 21:09:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:37,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 347 [2022-03-18 21:09:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:37,879 INFO L225 Difference]: With dead ends: 4250 [2022-03-18 21:09:37,879 INFO L226 Difference]: Without dead ends: 4250 [2022-03-18 21:09:37,879 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:37,880 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 62 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:37,880 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 608 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 560 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:09:37,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2022-03-18 21:09:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3968. [2022-03-18 21:09:37,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.498107494322483) internal successors, (5937), 3963 states have internal predecessors, (5937), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5941 transitions. [2022-03-18 21:09:37,916 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5941 transitions. Word has length 347 [2022-03-18 21:09:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:37,916 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5941 transitions. [2022-03-18 21:09:37,916 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5941 transitions. [2022-03-18 21:09:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-18 21:09:37,921 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:37,922 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-18 21:09:37,922 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-18 21:09:37,922 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:37,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:37,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1466071603, now seen corresponding path program 1 times [2022-03-18 21:09:37,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:37,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457089821] [2022-03-18 21:09:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-18 21:09:38,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:38,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457089821] [2022-03-18 21:09:38,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457089821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:38,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:38,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:38,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798987916] [2022-03-18 21:09:38,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:38,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:38,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:38,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:38,115 INFO L87 Difference]: Start difference. First operand 3968 states and 5941 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:40,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:40,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:40,575 INFO L93 Difference]: Finished difference Result 4210 states and 6251 transitions. [2022-03-18 21:09:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:40,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 348 [2022-03-18 21:09:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:40,580 INFO L225 Difference]: With dead ends: 4210 [2022-03-18 21:09:40,580 INFO L226 Difference]: Without dead ends: 4210 [2022-03-18 21:09:40,580 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:40,581 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 71 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:40,581 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 594 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-03-18 21:09:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3968. [2022-03-18 21:09:40,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3963 states have (on average 1.496088821599798) internal successors, (5929), 3963 states have internal predecessors, (5929), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:40,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5933 transitions. [2022-03-18 21:09:40,616 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5933 transitions. Word has length 348 [2022-03-18 21:09:40,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:40,616 INFO L478 AbstractCegarLoop]: Abstraction has 3968 states and 5933 transitions. [2022-03-18 21:09:40,616 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:40,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5933 transitions. [2022-03-18 21:09:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-18 21:09:40,621 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:40,621 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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] [2022-03-18 21:09:40,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-18 21:09:40,622 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:40,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:40,622 INFO L85 PathProgramCache]: Analyzing trace with hash -951999064, now seen corresponding path program 1 times [2022-03-18 21:09:40,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:40,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466745385] [2022-03-18 21:09:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:40,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-18 21:09:40,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:40,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466745385] [2022-03-18 21:09:40,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466745385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:40,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:40,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:09:40,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355602590] [2022-03-18 21:09:40,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:40,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:09:40,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:09:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:40,879 INFO L87 Difference]: Start difference. First operand 3968 states and 5933 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 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) [2022-03-18 21:09:42,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:43,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:43,289 INFO L93 Difference]: Finished difference Result 4446 states and 6561 transitions. [2022-03-18 21:09:43,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:43,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 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 349 [2022-03-18 21:09:43,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:43,293 INFO L225 Difference]: With dead ends: 4446 [2022-03-18 21:09:43,293 INFO L226 Difference]: Without dead ends: 4446 [2022-03-18 21:09:43,293 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:09:43,298 INFO L912 BasicCegarLoop]: 115 mSDtfsCounter, 253 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:43,298 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 330 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:43,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-03-18 21:09:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3910. [2022-03-18 21:09:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4960307298335467) internal successors, (5842), 3905 states have internal predecessors, (5842), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:43,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5846 transitions. [2022-03-18 21:09:43,335 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5846 transitions. Word has length 349 [2022-03-18 21:09:43,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:43,335 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5846 transitions. [2022-03-18 21:09:43,335 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 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) [2022-03-18 21:09:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5846 transitions. [2022-03-18 21:09:43,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-18 21:09:43,342 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:43,343 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:43,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-18 21:09:43,343 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:43,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2110568493, now seen corresponding path program 1 times [2022-03-18 21:09:43,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:43,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925243907] [2022-03-18 21:09:43,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:43,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-18 21:09:43,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:43,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925243907] [2022-03-18 21:09:43,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925243907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:43,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:43,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:43,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017846456] [2022-03-18 21:09:43,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:43,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:43,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:43,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:43,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:43,501 INFO L87 Difference]: Start difference. First operand 3910 states and 5846 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:45,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:45,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:45,928 INFO L93 Difference]: Finished difference Result 4152 states and 6156 transitions. [2022-03-18 21:09:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:45,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 349 [2022-03-18 21:09:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:45,933 INFO L225 Difference]: With dead ends: 4152 [2022-03-18 21:09:45,933 INFO L226 Difference]: Without dead ends: 4152 [2022-03-18 21:09:45,933 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:45,933 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 56 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:45,933 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 592 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:45,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2022-03-18 21:09:45,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3910. [2022-03-18 21:09:45,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4939820742637644) internal successors, (5834), 3905 states have internal predecessors, (5834), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5838 transitions. [2022-03-18 21:09:45,985 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5838 transitions. Word has length 349 [2022-03-18 21:09:45,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:45,985 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5838 transitions. [2022-03-18 21:09:45,985 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5838 transitions. [2022-03-18 21:09:45,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-03-18 21:09:45,989 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:45,990 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:45,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-18 21:09:45,990 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:45,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1878023735, now seen corresponding path program 1 times [2022-03-18 21:09:45,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:45,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539371435] [2022-03-18 21:09:45,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:45,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-18 21:09:46,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:46,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539371435] [2022-03-18 21:09:46,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539371435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:46,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:46,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:46,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616423033] [2022-03-18 21:09:46,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:46,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:46,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:46,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:46,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:46,156 INFO L87 Difference]: Start difference. First operand 3910 states and 5838 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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) [2022-03-18 21:09:48,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:48,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:48,565 INFO L93 Difference]: Finished difference Result 4088 states and 6044 transitions. [2022-03-18 21:09:48,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:48,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 350 [2022-03-18 21:09:48,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:48,569 INFO L225 Difference]: With dead ends: 4088 [2022-03-18 21:09:48,569 INFO L226 Difference]: Without dead ends: 4088 [2022-03-18 21:09:48,569 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:48,569 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 45 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:48,570 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 582 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:48,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-03-18 21:09:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3910. [2022-03-18 21:09:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.491933418693982) internal successors, (5826), 3905 states have internal predecessors, (5826), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:48,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5830 transitions. [2022-03-18 21:09:48,598 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5830 transitions. Word has length 350 [2022-03-18 21:09:48,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:48,599 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5830 transitions. [2022-03-18 21:09:48,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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) [2022-03-18 21:09:48,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5830 transitions. [2022-03-18 21:09:48,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-03-18 21:09:48,602 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:48,603 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-18 21:09:48,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-18 21:09:48,603 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:48,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:48,603 INFO L85 PathProgramCache]: Analyzing trace with hash 512398985, now seen corresponding path program 1 times [2022-03-18 21:09:48,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:48,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232831186] [2022-03-18 21:09:48,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:48,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 710 proven. 82 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-03-18 21:09:48,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:48,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232831186] [2022-03-18 21:09:48,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232831186] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:09:48,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608617164] [2022-03-18 21:09:48,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:48,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:09:48,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:09:48,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:09:48,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 21:09:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:49,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-18 21:09:49,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:09:49,990 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:09:49,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:09:50,033 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 21:09:50,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:09:50,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 21:09:50,283 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:09:50,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:09:50,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:09:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 682 proven. 126 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-18 21:09:50,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 21:09:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-03-18 21:09:51,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608617164] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 21:09:51,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 21:09:51,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-03-18 21:09:51,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740177010] [2022-03-18 21:09:51,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:51,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:09:51,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:09:51,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-03-18 21:09:51,031 INFO L87 Difference]: Start difference. First operand 3910 states and 5830 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 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) [2022-03-18 21:09:53,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:53,318 INFO L93 Difference]: Finished difference Result 4716 states and 6951 transitions. [2022-03-18 21:09:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:09:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 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 352 [2022-03-18 21:09:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:53,323 INFO L225 Difference]: With dead ends: 4716 [2022-03-18 21:09:53,323 INFO L226 Difference]: Without dead ends: 4716 [2022-03-18 21:09:53,323 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-18 21:09:53,324 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 108 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:53,324 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 535 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:09:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2022-03-18 21:09:53,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4234. [2022-03-18 21:09:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.4913691179947979) internal successors, (6307), 4229 states have internal predecessors, (6307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6311 transitions. [2022-03-18 21:09:53,361 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6311 transitions. Word has length 352 [2022-03-18 21:09:53,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:53,361 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6311 transitions. [2022-03-18 21:09:53,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 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) [2022-03-18 21:09:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6311 transitions. [2022-03-18 21:09:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-18 21:09:53,366 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:53,366 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-18 21:09:53,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 21:09:53,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-18 21:09:53,573 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:53,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:53,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1647130387, now seen corresponding path program 1 times [2022-03-18 21:09:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:53,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146574659] [2022-03-18 21:09:53,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:53,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-18 21:09:53,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:53,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146574659] [2022-03-18 21:09:53,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146574659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:53,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:53,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:53,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635243239] [2022-03-18 21:09:53,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:53,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:53,796 INFO L87 Difference]: Start difference. First operand 4234 states and 6311 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 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) [2022-03-18 21:09:55,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:56,198 INFO L93 Difference]: Finished difference Result 4380 states and 6475 transitions. [2022-03-18 21:09:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:56,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 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 353 [2022-03-18 21:09:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:56,202 INFO L225 Difference]: With dead ends: 4380 [2022-03-18 21:09:56,202 INFO L226 Difference]: Without dead ends: 4380 [2022-03-18 21:09:56,202 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:56,203 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 46 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:56,203 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 574 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:09:56,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-03-18 21:09:56,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4234. [2022-03-18 21:09:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4229 states have (on average 1.489477417829274) internal successors, (6299), 4229 states have internal predecessors, (6299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:56,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6303 transitions. [2022-03-18 21:09:56,262 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6303 transitions. Word has length 353 [2022-03-18 21:09:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:56,262 INFO L478 AbstractCegarLoop]: Abstraction has 4234 states and 6303 transitions. [2022-03-18 21:09:56,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 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) [2022-03-18 21:09:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6303 transitions. [2022-03-18 21:09:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-18 21:09:56,267 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:56,267 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:56,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-18 21:09:56,267 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:56,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:56,268 INFO L85 PathProgramCache]: Analyzing trace with hash -947640423, now seen corresponding path program 1 times [2022-03-18 21:09:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:56,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393723778] [2022-03-18 21:09:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:56,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-03-18 21:09:56,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:56,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393723778] [2022-03-18 21:09:56,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393723778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:56,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:56,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:56,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583995788] [2022-03-18 21:09:56,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:56,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:56,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:56,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:56,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:56,412 INFO L87 Difference]: Start difference. First operand 4234 states and 6303 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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) [2022-03-18 21:09:57,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:59,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:01,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:03,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:04,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:04,037 INFO L93 Difference]: Finished difference Result 4596 states and 6801 transitions. [2022-03-18 21:10:04,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:04,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 353 [2022-03-18 21:10:04,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:04,051 INFO L225 Difference]: With dead ends: 4596 [2022-03-18 21:10:04,051 INFO L226 Difference]: Without dead ends: 4596 [2022-03-18 21:10:04,051 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:04,052 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:04,052 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 578 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 464 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-18 21:10:04,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-03-18 21:10:04,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4442. [2022-03-18 21:10:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4442 states, 4437 states have (on average 1.4881676808654496) internal successors, (6603), 4437 states have internal predecessors, (6603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:04,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 6607 transitions. [2022-03-18 21:10:04,087 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 6607 transitions. Word has length 353 [2022-03-18 21:10:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:04,087 INFO L478 AbstractCegarLoop]: Abstraction has 4442 states and 6607 transitions. [2022-03-18 21:10:04,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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) [2022-03-18 21:10:04,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 6607 transitions. [2022-03-18 21:10:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-03-18 21:10:04,092 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:04,092 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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] [2022-03-18 21:10:04,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-18 21:10:04,092 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:04,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:04,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1606404644, now seen corresponding path program 1 times [2022-03-18 21:10:04,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:04,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164608401] [2022-03-18 21:10:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:04,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-03-18 21:10:04,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:04,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164608401] [2022-03-18 21:10:04,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164608401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:04,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:04,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:04,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590087670] [2022-03-18 21:10:04,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:04,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:04,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:04,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:04,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:04,273 INFO L87 Difference]: Start difference. First operand 4442 states and 6607 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) [2022-03-18 21:10:06,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:06,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:06,666 INFO L93 Difference]: Finished difference Result 4884 states and 7241 transitions. [2022-03-18 21:10:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:06,666 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 359 [2022-03-18 21:10:06,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:06,673 INFO L225 Difference]: With dead ends: 4884 [2022-03-18 21:10:06,673 INFO L226 Difference]: Without dead ends: 4884 [2022-03-18 21:10:06,673 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:06,675 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 46 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:06,676 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 590 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:10:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2022-03-18 21:10:06,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4666. [2022-03-18 21:10:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.488736322677537) internal successors, (6939), 4661 states have internal predecessors, (6939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6943 transitions. [2022-03-18 21:10:06,709 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6943 transitions. Word has length 359 [2022-03-18 21:10:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:06,709 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6943 transitions. [2022-03-18 21:10:06,710 INFO L479 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) [2022-03-18 21:10:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6943 transitions. [2022-03-18 21:10:06,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-18 21:10:06,714 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:06,717 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-18 21:10:06,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-18 21:10:06,718 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:06,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:06,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1596942315, now seen corresponding path program 1 times [2022-03-18 21:10:06,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:06,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890674601] [2022-03-18 21:10:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:06,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:07,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-03-18 21:10:07,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:07,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890674601] [2022-03-18 21:10:07,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890674601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:07,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:07,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 21:10:07,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449660175] [2022-03-18 21:10:07,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:07,171 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 21:10:07,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:07,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 21:10:07,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:10:07,172 INFO L87 Difference]: Start difference. First operand 4666 states and 6943 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:09,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:09,623 INFO L93 Difference]: Finished difference Result 4674 states and 6953 transitions. [2022-03-18 21:10:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:10:09,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 360 [2022-03-18 21:10:09,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:09,627 INFO L225 Difference]: With dead ends: 4674 [2022-03-18 21:10:09,627 INFO L226 Difference]: Without dead ends: 4666 [2022-03-18 21:10:09,628 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:10:09,628 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:09,628 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:10:09,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2022-03-18 21:10:09,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4666. [2022-03-18 21:10:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4666 states, 4661 states have (on average 1.4885217764428234) internal successors, (6938), 4661 states have internal predecessors, (6938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:09,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6942 transitions. [2022-03-18 21:10:09,663 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6942 transitions. Word has length 360 [2022-03-18 21:10:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:09,664 INFO L478 AbstractCegarLoop]: Abstraction has 4666 states and 6942 transitions. [2022-03-18 21:10:09,664 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:09,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6942 transitions. [2022-03-18 21:10:09,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-18 21:10:09,668 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:09,668 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-18 21:10:09,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-18 21:10:09,669 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:09,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:09,669 INFO L85 PathProgramCache]: Analyzing trace with hash -870525942, now seen corresponding path program 1 times [2022-03-18 21:10:09,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:09,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239469424] [2022-03-18 21:10:09,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:09,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 576 proven. 92 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-03-18 21:10:10,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:10,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239469424] [2022-03-18 21:10:10,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239469424] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:10:10,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035544650] [2022-03-18 21:10:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:10,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:10:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:10:10,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:10:10,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 21:10:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:11,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 131 conjunts are in the unsatisfiable core [2022-03-18 21:10:11,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:10:11,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:11,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:10:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:11,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:11,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:11,974 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 21:10:11,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-18 21:10:12,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,015 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 21:10:12,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-03-18 21:10:12,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-18 21:10:12,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-18 21:10:12,217 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-18 21:10:12,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-18 21:10:12,243 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-18 21:10:12,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-18 21:10:12,261 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-18 21:10:12,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2022-03-18 21:10:12,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-18 21:10:12,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-18 21:10:12,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-18 21:10:12,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-18 21:10:12,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-18 21:10:12,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-18 21:10:12,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,888 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 21:10:12,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-03-18 21:10:12,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,933 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-18 21:10:12,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-03-18 21:10:12,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:12,966 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-18 21:10:12,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-03-18 21:10:13,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-03-18 21:10:13,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-03-18 21:10:13,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:13,157 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-18 21:10:13,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 213 treesize of output 231 [2022-03-18 21:10:15,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 226 [2022-03-18 21:10:15,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,420 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-03-18 21:10:15,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 262 treesize of output 260 [2022-03-18 21:10:15,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:15,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 230 [2022-03-18 21:10:17,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:17,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:17,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:17,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:17,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:17,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:17,791 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-03-18 21:10:17,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 247 treesize of output 259 [2022-03-18 21:10:18,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-03-18 21:10:18,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-03-18 21:10:18,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-03-18 21:10:18,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:18,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-03-18 21:10:19,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 127 [2022-03-18 21:10:19,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,259 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-03-18 21:10:19,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 104 [2022-03-18 21:10:19,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 108 [2022-03-18 21:10:19,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:19,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 110 [2022-03-18 21:10:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2022-03-18 21:10:21,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 101 [2022-03-18 21:10:21,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,121 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-03-18 21:10:21,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 195 treesize of output 162 [2022-03-18 21:10:21,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-03-18 21:10:21,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,153 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-03-18 21:10:21,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 187 treesize of output 166 [2022-03-18 21:10:21,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 159 [2022-03-18 21:10:21,320 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-18 21:10:21,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-03-18 21:10:21,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:21,328 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 21:10:21,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 159 [2022-03-18 21:10:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:23,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:23,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:23,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 174 [2022-03-18 21:10:23,572 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-18 21:10:23,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 37 [2022-03-18 21:10:23,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:23,577 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 21:10:23,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 153 [2022-03-18 21:10:23,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:10:23,957 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 21:10:23,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 82 [2022-03-18 21:10:41,005 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-03-18 21:10:41,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2022-03-18 21:10:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 221 proven. 883 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-18 21:10:41,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 21:10:41,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 596 treesize of output 522