/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-6c470ae [2022-02-15 00:41:38,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:41:38,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:41:38,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:41:38,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:41:38,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:41:38,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:41:38,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:41:38,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:41:38,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:41:38,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:41:38,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:41:38,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:41:38,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:41:38,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:41:38,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:41:38,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:41:38,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:41:38,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:41:38,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:41:38,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:41:38,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:41:38,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:41:38,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:41:38,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:41:38,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:41:38,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:41:38,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:41:38,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:41:38,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:41:38,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:41:38,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:41:38,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:41:38,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:41:38,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:41:38,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:41:38,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:41:38,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:41:38,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:41:38,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:41:38,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:41:38,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:41:38,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:41:38,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:41:38,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:41:38,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:41:38,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:41:38,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:41:38,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:41:38,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:41:38,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:41:38,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:41:38,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:41:38,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:41:38,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:41:38,157 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:41:38,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:41:38,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:41:38,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:41:38,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:41:38,380 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:41:38,382 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:41:38,383 INFO L432 ainManager$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 [2022-02-15 00:41:38,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ab78f8a/439fa673b01d481ab3bc2476a3ffbe9a/FLAG8b18bd3d5 [2022-02-15 00:41:38,897 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:41:38,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-02-15 00:41:38,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ab78f8a/439fa673b01d481ab3bc2476a3ffbe9a/FLAG8b18bd3d5 [2022-02-15 00:41:39,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ab78f8a/439fa673b01d481ab3bc2476a3ffbe9a [2022-02-15 00:41:39,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:41:39,444 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:41:39,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:41:39,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:41:39,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:41:39,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae36205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39, skipping insertion in model container [2022-02-15 00:41:39,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:41:39,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:41:39,752 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] [2022-02-15 00:41:39,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:41:39,765 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:41:39,837 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] [2022-02-15 00:41:39,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:41:39,861 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:41:39,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39 WrapperNode [2022-02-15 00:41:39,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:41:39,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:41:39,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:41:39,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:41:39,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:41:39,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:41:39,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:41:39,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:41:39,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (1/1) ... [2022-02-15 00:41:39,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:41:39,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:41:40,017 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) [2022-02-15 00:41:40,033 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 [2022-02-15 00:41:40,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:41:40,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:41:40,075 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:41:40,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:41:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:41:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:41:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:41:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:41:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:41:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:41:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:41:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:41:40,077 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:41:40,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:41:40,077 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:41:40,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:41:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:41:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:41:40,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:41:40,253 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:41:40,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:41:42,482 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:41:42,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:41:42,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:41:42,895 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:41:42,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:41:42,916 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:41:42,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:41:42 BoogieIcfgContainer [2022-02-15 00:41:42,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:41:42,918 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:41:42,918 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:41:42,919 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:41:42,921 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:41:42" (1/1) ... [2022-02-15 00:41:42,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:41:42 BasicIcfg [2022-02-15 00:41:42,958 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:41:42,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:41:42,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:41:42,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:41:42,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:41:39" (1/4) ... [2022-02-15 00:41:42,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c343dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:41:42, skipping insertion in model container [2022-02-15 00:41:42,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:41:39" (2/4) ... [2022-02-15 00:41:42,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c343dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:41:42, skipping insertion in model container [2022-02-15 00:41:42,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:41:42" (3/4) ... [2022-02-15 00:41:42,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c343dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:41:42, skipping insertion in model container [2022-02-15 00:41:42,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:41:42" (4/4) ... [2022-02-15 00:41:42,963 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.cJordan [2022-02-15 00:41:42,966 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:41:42,966 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:41:43,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:41:43,019 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-15 00:41:43,020 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:41:43,034 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) [2022-02-15 00:41:43,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-15 00:41:43,042 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:43,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:43,043 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:43,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:43,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1394707426, now seen corresponding path program 1 times [2022-02-15 00:41:43,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:43,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356038324] [2022-02-15 00:41:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:41:43,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:43,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356038324] [2022-02-15 00:41:43,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356038324] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:43,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:43,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:43,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758602398] [2022-02-15 00:41:43,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:43,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:43,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:43,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:43,538 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) [2022-02-15 00:41:45,573 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 [] [2022-02-15 00:41:46,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:46,141 INFO L93 Difference]: Finished difference Result 281 states and 462 transitions. [2022-02-15 00:41:46,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:46,155 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 [2022-02-15 00:41:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:46,163 INFO L225 Difference]: With dead ends: 281 [2022-02-15 00:41:46,164 INFO L226 Difference]: Without dead ends: 255 [2022-02-15 00:41:46,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:41:46,179 INFO L933 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 [2022-02-15 00:41:46,180 INFO L934 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] [2022-02-15 00:41:46,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-15 00:41:46,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 182. [2022-02-15 00:41:46,215 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) [2022-02-15 00:41:46,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-02-15 00:41:46,217 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 53 [2022-02-15 00:41:46,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:46,218 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-02-15 00:41:46,218 INFO L471 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) [2022-02-15 00:41:46,218 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-02-15 00:41:46,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-15 00:41:46,220 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:46,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:46,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:41:46,220 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:46,221 INFO L85 PathProgramCache]: Analyzing trace with hash 315625172, now seen corresponding path program 1 times [2022-02-15 00:41:46,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:46,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234288456] [2022-02-15 00:41:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:46,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:41:46,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:46,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234288456] [2022-02-15 00:41:46,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234288456] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:46,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:46,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:46,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710453803] [2022-02-15 00:41:46,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:46,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:46,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:46,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:46,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:46,438 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) [2022-02-15 00:41:48,456 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 [] [2022-02-15 00:41:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:48,781 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-02-15 00:41:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:48,781 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 [2022-02-15 00:41:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:48,782 INFO L225 Difference]: With dead ends: 210 [2022-02-15 00:41:48,783 INFO L226 Difference]: Without dead ends: 210 [2022-02-15 00:41:48,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:41:48,784 INFO L933 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:48,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 460 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:48,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-15 00:41:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-02-15 00:41:48,799 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) [2022-02-15 00:41:48,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-02-15 00:41:48,816 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 54 [2022-02-15 00:41:48,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:48,817 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-02-15 00:41:48,817 INFO L471 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) [2022-02-15 00:41:48,817 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-02-15 00:41:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:41:48,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:48,821 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:48,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:41:48,822 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:48,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:48,822 INFO L85 PathProgramCache]: Analyzing trace with hash -254321634, now seen corresponding path program 1 times [2022-02-15 00:41:48,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:48,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561255668] [2022-02-15 00:41:48,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:48,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:41:48,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:48,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561255668] [2022-02-15 00:41:48,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561255668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:48,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:48,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:48,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22219345] [2022-02-15 00:41:48,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:48,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:48,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:48,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:48,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:48,952 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) [2022-02-15 00:41:50,967 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 [] [2022-02-15 00:41:51,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:51,317 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-02-15 00:41:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:51,317 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 [2022-02-15 00:41:51,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:51,318 INFO L225 Difference]: With dead ends: 210 [2022-02-15 00:41:51,318 INFO L226 Difference]: Without dead ends: 210 [2022-02-15 00:41:51,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:41:51,319 INFO L933 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:51,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:41:51,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-15 00:41:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-02-15 00:41:51,327 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) [2022-02-15 00:41:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-02-15 00:41:51,327 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 67 [2022-02-15 00:41:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:51,328 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-02-15 00:41:51,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:41:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-02-15 00:41:51,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 00:41:51,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:51,329 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:51,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:41:51,330 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:51,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:51,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1913510738, now seen corresponding path program 1 times [2022-02-15 00:41:51,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:51,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436048377] [2022-02-15 00:41:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:51,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:51,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:41:51,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:51,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436048377] [2022-02-15 00:41:51,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436048377] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:51,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:51,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:51,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104960627] [2022-02-15 00:41:51,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:51,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:51,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:51,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:51,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:51,423 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) [2022-02-15 00:41:52,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:54,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:56,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:58,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:41:58,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:41:58,952 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-02-15 00:41:58,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:41:58,953 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 [2022-02-15 00:41:58,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:41:58,954 INFO L225 Difference]: With dead ends: 208 [2022-02-15 00:41:58,954 INFO L226 Difference]: Without dead ends: 208 [2022-02-15 00:41:58,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:41:58,955 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:41:58,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 350 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-15 00:41:58,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-02-15 00:41:58,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2022-02-15 00:41:58,960 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) [2022-02-15 00:41:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-02-15 00:41:58,961 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 68 [2022-02-15 00:41:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:41:58,961 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-02-15 00:41:58,961 INFO L471 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) [2022-02-15 00:41:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-02-15 00:41:58,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 00:41:58,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:41:58,962 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:41:58,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:41:58,962 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:41:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:41:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1376108913, now seen corresponding path program 1 times [2022-02-15 00:41:58,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:41:58,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842130521] [2022-02-15 00:41:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:41:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:41:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:41:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:41:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:41:59,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:41:59,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842130521] [2022-02-15 00:41:59,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842130521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:41:59,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:41:59,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:41:59,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656844233] [2022-02-15 00:41:59,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:41:59,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:41:59,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:41:59,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:41:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:41:59,105 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) [2022-02-15 00:42:01,119 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 [] [2022-02-15 00:42:01,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:01,442 INFO L93 Difference]: Finished difference Result 207 states and 322 transitions. [2022-02-15 00:42:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:01,443 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 [2022-02-15 00:42:01,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:01,444 INFO L225 Difference]: With dead ends: 207 [2022-02-15 00:42:01,444 INFO L226 Difference]: Without dead ends: 207 [2022-02-15 00:42:01,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:01,444 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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 [2022-02-15 00:42:01,445 INFO L934 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] [2022-02-15 00:42:01,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-02-15 00:42:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2022-02-15 00:42:01,452 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) [2022-02-15 00:42:01,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 304 transitions. [2022-02-15 00:42:01,453 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 304 transitions. Word has length 68 [2022-02-15 00:42:01,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:01,453 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 304 transitions. [2022-02-15 00:42:01,453 INFO L471 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) [2022-02-15 00:42:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 304 transitions. [2022-02-15 00:42:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 00:42:01,454 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:01,454 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:01,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:42:01,454 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:01,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:01,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595334, now seen corresponding path program 1 times [2022-02-15 00:42:01,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:01,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183944151] [2022-02-15 00:42:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:01,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:01,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:01,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:01,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183944151] [2022-02-15 00:42:01,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183944151] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:01,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:01,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:01,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124091039] [2022-02-15 00:42:01,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:01,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:01,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:01,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:01,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:01,561 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) [2022-02-15 00:42:03,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:05,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:07,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:09,297 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 [] [2022-02-15 00:42:09,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:09,605 INFO L93 Difference]: Finished difference Result 206 states and 320 transitions. [2022-02-15 00:42:09,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:09,605 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 [2022-02-15 00:42:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:09,607 INFO L225 Difference]: With dead ends: 206 [2022-02-15 00:42:09,607 INFO L226 Difference]: Without dead ends: 206 [2022-02-15 00:42:09,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:09,608 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:09,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 346 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-15 00:42:09,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-02-15 00:42:09,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-02-15 00:42:09,612 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) [2022-02-15 00:42:09,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 303 transitions. [2022-02-15 00:42:09,613 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 303 transitions. Word has length 69 [2022-02-15 00:42:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:09,613 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 303 transitions. [2022-02-15 00:42:09,613 INFO L471 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) [2022-02-15 00:42:09,613 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 303 transitions. [2022-02-15 00:42:09,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 00:42:09,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:09,614 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:09,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:42:09,614 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:09,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:09,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1597008666, now seen corresponding path program 1 times [2022-02-15 00:42:09,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:09,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306168963] [2022-02-15 00:42:09,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:09,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:09,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:09,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306168963] [2022-02-15 00:42:09,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306168963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:09,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:09,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:09,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507851262] [2022-02-15 00:42:09,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:09,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:09,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:09,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:09,737 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) [2022-02-15 00:42:11,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:12,227 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-02-15 00:42:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:12,228 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 [2022-02-15 00:42:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:12,229 INFO L225 Difference]: With dead ends: 309 [2022-02-15 00:42:12,229 INFO L226 Difference]: Without dead ends: 309 [2022-02-15 00:42:12,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:12,230 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 144 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:12,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 323 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:42:12,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-15 00:42:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 205. [2022-02-15 00:42:12,234 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) [2022-02-15 00:42:12,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 319 transitions. [2022-02-15 00:42:12,235 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 319 transitions. Word has length 69 [2022-02-15 00:42:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:12,235 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 319 transitions. [2022-02-15 00:42:12,235 INFO L471 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) [2022-02-15 00:42:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 319 transitions. [2022-02-15 00:42:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 00:42:12,236 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:12,236 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:12,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:42:12,236 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:12,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash 511071466, now seen corresponding path program 1 times [2022-02-15 00:42:12,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:12,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960957720] [2022-02-15 00:42:12,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:12,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:12,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:12,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960957720] [2022-02-15 00:42:12,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960957720] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:12,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:12,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:12,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679331974] [2022-02-15 00:42:12,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:12,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:12,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:12,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:12,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:12,355 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) [2022-02-15 00:42:14,372 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 [] [2022-02-15 00:42:14,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:14,813 INFO L93 Difference]: Finished difference Result 309 states and 476 transitions. [2022-02-15 00:42:14,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:14,813 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 [2022-02-15 00:42:14,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:14,815 INFO L225 Difference]: With dead ends: 309 [2022-02-15 00:42:14,815 INFO L226 Difference]: Without dead ends: 309 [2022-02-15 00:42:14,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:14,815 INFO L933 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 [2022-02-15 00:42:14,816 INFO L934 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] [2022-02-15 00:42:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-15 00:42:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 206. [2022-02-15 00:42:14,819 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) [2022-02-15 00:42:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 318 transitions. [2022-02-15 00:42:14,820 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 318 transitions. Word has length 70 [2022-02-15 00:42:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:14,820 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 318 transitions. [2022-02-15 00:42:14,820 INFO L471 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) [2022-02-15 00:42:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 318 transitions. [2022-02-15 00:42:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-15 00:42:14,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:14,821 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:14,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:42:14,821 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:14,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash -11530602, now seen corresponding path program 1 times [2022-02-15 00:42:14,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:14,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348954224] [2022-02-15 00:42:14,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:14,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:14,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:14,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:14,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348954224] [2022-02-15 00:42:14,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348954224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:14,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:14,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:14,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156182152] [2022-02-15 00:42:14,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:14,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:14,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:14,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:14,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:14,924 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) [2022-02-15 00:42:16,939 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 [] [2022-02-15 00:42:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:17,204 INFO L93 Difference]: Finished difference Result 219 states and 334 transitions. [2022-02-15 00:42:17,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:17,204 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 [2022-02-15 00:42:17,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:17,205 INFO L225 Difference]: With dead ends: 219 [2022-02-15 00:42:17,205 INFO L226 Difference]: Without dead ends: 219 [2022-02-15 00:42:17,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:17,206 INFO L933 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 [2022-02-15 00:42:17,206 INFO L934 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] [2022-02-15 00:42:17,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-02-15 00:42:17,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 206. [2022-02-15 00:42:17,216 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) [2022-02-15 00:42:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2022-02-15 00:42:17,216 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 71 [2022-02-15 00:42:17,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:17,217 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2022-02-15 00:42:17,217 INFO L471 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) [2022-02-15 00:42:17,217 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2022-02-15 00:42:17,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-15 00:42:17,217 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:17,217 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:17,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:42:17,218 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:17,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:17,218 INFO L85 PathProgramCache]: Analyzing trace with hash -618559600, now seen corresponding path program 1 times [2022-02-15 00:42:17,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:17,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067080746] [2022-02-15 00:42:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:17,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:17,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:17,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:17,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067080746] [2022-02-15 00:42:17,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067080746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:17,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:17,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:17,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523932891] [2022-02-15 00:42:17,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:17,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:17,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:17,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:17,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:17,350 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) [2022-02-15 00:42:19,358 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 [] [2022-02-15 00:42:19,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:19,702 INFO L93 Difference]: Finished difference Result 249 states and 380 transitions. [2022-02-15 00:42:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:19,702 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 [2022-02-15 00:42:19,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:19,703 INFO L225 Difference]: With dead ends: 249 [2022-02-15 00:42:19,703 INFO L226 Difference]: Without dead ends: 249 [2022-02-15 00:42:19,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:19,704 INFO L933 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 [2022-02-15 00:42:19,704 INFO L934 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] [2022-02-15 00:42:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-02-15 00:42:19,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 228. [2022-02-15 00:42:19,707 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) [2022-02-15 00:42:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions. [2022-02-15 00:42:19,708 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 71 [2022-02-15 00:42:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:19,708 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 353 transitions. [2022-02-15 00:42:19,709 INFO L471 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) [2022-02-15 00:42:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions. [2022-02-15 00:42:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-02-15 00:42:19,709 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:19,709 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:19,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:42:19,709 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:19,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:19,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1019782777, now seen corresponding path program 1 times [2022-02-15 00:42:19,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:19,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000107848] [2022-02-15 00:42:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:19,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:19,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:19,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000107848] [2022-02-15 00:42:19,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000107848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:19,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:19,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:19,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490134261] [2022-02-15 00:42:19,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:19,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:19,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:19,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:19,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:19,795 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) [2022-02-15 00:42:21,804 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 [] [2022-02-15 00:42:22,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:22,221 INFO L93 Difference]: Finished difference Result 331 states and 507 transitions. [2022-02-15 00:42:22,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:22,222 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 [2022-02-15 00:42:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:22,223 INFO L225 Difference]: With dead ends: 331 [2022-02-15 00:42:22,223 INFO L226 Difference]: Without dead ends: 331 [2022-02-15 00:42:22,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:22,224 INFO L933 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 [2022-02-15 00:42:22,224 INFO L934 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] [2022-02-15 00:42:22,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-02-15 00:42:22,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 230. [2022-02-15 00:42:22,228 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) [2022-02-15 00:42:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 353 transitions. [2022-02-15 00:42:22,228 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 353 transitions. Word has length 72 [2022-02-15 00:42:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:22,228 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 353 transitions. [2022-02-15 00:42:22,229 INFO L471 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) [2022-02-15 00:42:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 353 transitions. [2022-02-15 00:42:22,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 00:42:22,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:22,229 INFO L514 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] [2022-02-15 00:42:22,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:42:22,230 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:22,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:22,230 INFO L85 PathProgramCache]: Analyzing trace with hash -913771294, now seen corresponding path program 1 times [2022-02-15 00:42:22,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:22,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905917530] [2022-02-15 00:42:22,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:22,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:22,328 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:22,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:22,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905917530] [2022-02-15 00:42:22,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905917530] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:22,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:22,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:22,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15915607] [2022-02-15 00:42:22,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:22,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:22,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:22,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:22,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:22,330 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) [2022-02-15 00:42:24,340 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 [] [2022-02-15 00:42:24,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:24,749 INFO L93 Difference]: Finished difference Result 374 states and 581 transitions. [2022-02-15 00:42:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:24,750 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 [2022-02-15 00:42:24,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:24,751 INFO L225 Difference]: With dead ends: 374 [2022-02-15 00:42:24,751 INFO L226 Difference]: Without dead ends: 374 [2022-02-15 00:42:24,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:24,752 INFO L933 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 [2022-02-15 00:42:24,752 INFO L934 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] [2022-02-15 00:42:24,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-02-15 00:42:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 247. [2022-02-15 00:42:24,756 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) [2022-02-15 00:42:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 376 transitions. [2022-02-15 00:42:24,756 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 376 transitions. Word has length 84 [2022-02-15 00:42:24,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:24,757 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 376 transitions. [2022-02-15 00:42:24,757 INFO L471 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) [2022-02-15 00:42:24,757 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 376 transitions. [2022-02-15 00:42:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 00:42:24,757 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:24,757 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:24,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:42:24,758 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:24,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:24,758 INFO L85 PathProgramCache]: Analyzing trace with hash -881613718, now seen corresponding path program 1 times [2022-02-15 00:42:24,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:24,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766326384] [2022-02-15 00:42:24,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:24,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:24,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:24,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766326384] [2022-02-15 00:42:24,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766326384] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:24,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:24,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:24,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209486426] [2022-02-15 00:42:24,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:24,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:24,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:24,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:24,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:24,869 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) [2022-02-15 00:42:26,017 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 [] [2022-02-15 00:42:28,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:30,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:42:32,093 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 [] [2022-02-15 00:42:32,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:32,553 INFO L93 Difference]: Finished difference Result 347 states and 525 transitions. [2022-02-15 00:42:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:32,553 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 [2022-02-15 00:42:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:32,555 INFO L225 Difference]: With dead ends: 347 [2022-02-15 00:42:32,555 INFO L226 Difference]: Without dead ends: 347 [2022-02-15 00:42:32,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:32,555 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s 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, 7.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:32,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-15 00:42:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-02-15 00:42:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 248. [2022-02-15 00:42:32,559 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) [2022-02-15 00:42:32,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 375 transitions. [2022-02-15 00:42:32,560 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 375 transitions. Word has length 85 [2022-02-15 00:42:32,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:32,560 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 375 transitions. [2022-02-15 00:42:32,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 375 transitions. [2022-02-15 00:42:32,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 00:42:32,561 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:32,561 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:32,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:42:32,561 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:32,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:32,562 INFO L85 PathProgramCache]: Analyzing trace with hash -344211893, now seen corresponding path program 1 times [2022-02-15 00:42:32,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:32,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073883178] [2022-02-15 00:42:32,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:32,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:32,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:32,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073883178] [2022-02-15 00:42:32,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073883178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:32,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:32,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:32,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062578846] [2022-02-15 00:42:32,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:32,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:32,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:32,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:32,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:32,655 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) [2022-02-15 00:42:34,663 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 [] [2022-02-15 00:42:34,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:34,978 INFO L93 Difference]: Finished difference Result 266 states and 398 transitions. [2022-02-15 00:42:34,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:34,978 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 [2022-02-15 00:42:34,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:34,979 INFO L225 Difference]: With dead ends: 266 [2022-02-15 00:42:34,979 INFO L226 Difference]: Without dead ends: 266 [2022-02-15 00:42:34,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:34,980 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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 [2022-02-15 00:42:34,980 INFO L934 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] [2022-02-15 00:42:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-15 00:42:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 248. [2022-02-15 00:42:34,984 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) [2022-02-15 00:42:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 374 transitions. [2022-02-15 00:42:34,985 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 374 transitions. Word has length 85 [2022-02-15 00:42:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:34,985 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 374 transitions. [2022-02-15 00:42:34,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 374 transitions. [2022-02-15 00:42:34,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-15 00:42:34,985 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:34,986 INFO L514 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] [2022-02-15 00:42:34,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:42:34,986 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:34,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:34,986 INFO L85 PathProgramCache]: Analyzing trace with hash 382441214, now seen corresponding path program 1 times [2022-02-15 00:42:34,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:34,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093688431] [2022-02-15 00:42:34,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:34,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:42:35,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:35,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093688431] [2022-02-15 00:42:35,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093688431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:35,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:35,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:35,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580063543] [2022-02-15 00:42:35,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:35,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:35,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:35,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:35,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:35,081 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) [2022-02-15 00:42:37,095 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 [] [2022-02-15 00:42:37,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:37,474 INFO L93 Difference]: Finished difference Result 261 states and 389 transitions. [2022-02-15 00:42:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:37,475 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 [2022-02-15 00:42:37,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:37,476 INFO L225 Difference]: With dead ends: 261 [2022-02-15 00:42:37,476 INFO L226 Difference]: Without dead ends: 261 [2022-02-15 00:42:37,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:37,476 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 19 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:37,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 547 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-02-15 00:42:37,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 248. [2022-02-15 00:42:37,479 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) [2022-02-15 00:42:37,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 373 transitions. [2022-02-15 00:42:37,480 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 373 transitions. Word has length 86 [2022-02-15 00:42:37,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:37,480 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 373 transitions. [2022-02-15 00:42:37,480 INFO L471 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) [2022-02-15 00:42:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 373 transitions. [2022-02-15 00:42:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 00:42:37,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:37,481 INFO L514 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] [2022-02-15 00:42:37,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:42:37,481 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1995759549, now seen corresponding path program 1 times [2022-02-15 00:42:37,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:37,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633259798] [2022-02-15 00:42:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:37,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-15 00:42:37,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:37,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633259798] [2022-02-15 00:42:37,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633259798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:37,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:37,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:42:37,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189504655] [2022-02-15 00:42:37,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:37,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:42:37,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:37,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:42:37,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:37,577 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) [2022-02-15 00:42:39,585 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 [] [2022-02-15 00:42:39,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:39,964 INFO L93 Difference]: Finished difference Result 257 states and 384 transitions. [2022-02-15 00:42:39,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 00:42:39,965 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 [2022-02-15 00:42:39,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:39,966 INFO L225 Difference]: With dead ends: 257 [2022-02-15 00:42:39,966 INFO L226 Difference]: Without dead ends: 257 [2022-02-15 00:42:39,966 INFO L932 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 [2022-02-15 00:42:39,966 INFO L933 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:39,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:39,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-15 00:42:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-02-15 00:42:39,970 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) [2022-02-15 00:42:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 384 transitions. [2022-02-15 00:42:39,970 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 384 transitions. Word has length 87 [2022-02-15 00:42:39,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:39,971 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 384 transitions. [2022-02-15 00:42:39,971 INFO L471 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) [2022-02-15 00:42:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 384 transitions. [2022-02-15 00:42:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-15 00:42:39,972 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:39,972 INFO L514 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] [2022-02-15 00:42:39,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:42:39,972 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:39,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:39,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1310252391, now seen corresponding path program 1 times [2022-02-15 00:42:39,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:39,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448104676] [2022-02-15 00:42:39,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:39,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:42:40,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:40,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448104676] [2022-02-15 00:42:40,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448104676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:40,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:40,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:40,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887691137] [2022-02-15 00:42:40,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:40,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:40,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:40,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:40,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:40,099 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) [2022-02-15 00:42:42,115 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 [] [2022-02-15 00:42:42,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:42,445 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2022-02-15 00:42:42,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:42,446 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 [2022-02-15 00:42:42,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:42,447 INFO L225 Difference]: With dead ends: 274 [2022-02-15 00:42:42,447 INFO L226 Difference]: Without dead ends: 274 [2022-02-15 00:42:42,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:42,447 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:42,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 490 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-02-15 00:42:42,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2022-02-15 00:42:42,450 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) [2022-02-15 00:42:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 383 transitions. [2022-02-15 00:42:42,451 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 383 transitions. Word has length 89 [2022-02-15 00:42:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:42,451 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 383 transitions. [2022-02-15 00:42:42,452 INFO L471 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) [2022-02-15 00:42:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 383 transitions. [2022-02-15 00:42:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-15 00:42:42,452 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:42,452 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:42,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:42:42,453 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:42,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:42,453 INFO L85 PathProgramCache]: Analyzing trace with hash 500536592, now seen corresponding path program 1 times [2022-02-15 00:42:42,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:42,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083980951] [2022-02-15 00:42:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:42,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:42:42,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:42,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083980951] [2022-02-15 00:42:42,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083980951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:42,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:42,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:42,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906997103] [2022-02-15 00:42:42,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:42,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:42,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:42,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:42,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:42,572 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) [2022-02-15 00:42:44,581 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 [] [2022-02-15 00:42:45,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:45,022 INFO L93 Difference]: Finished difference Result 365 states and 543 transitions. [2022-02-15 00:42:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:45,024 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 [2022-02-15 00:42:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:45,025 INFO L225 Difference]: With dead ends: 365 [2022-02-15 00:42:45,025 INFO L226 Difference]: Without dead ends: 363 [2022-02-15 00:42:45,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:45,025 INFO L933 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 [2022-02-15 00:42:45,025 INFO L934 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] [2022-02-15 00:42:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-02-15 00:42:45,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 282. [2022-02-15 00:42:45,029 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) [2022-02-15 00:42:45,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2022-02-15 00:42:45,030 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 93 [2022-02-15 00:42:45,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:45,030 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2022-02-15 00:42:45,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:42:45,030 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2022-02-15 00:42:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-15 00:42:45,031 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:45,031 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:45,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:42:45,031 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:45,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:45,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2143278373, now seen corresponding path program 1 times [2022-02-15 00:42:45,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:45,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737965067] [2022-02-15 00:42:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:45,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:42:45,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:45,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737965067] [2022-02-15 00:42:45,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737965067] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:45,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:45,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:45,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133308869] [2022-02-15 00:42:45,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:45,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:45,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:45,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:45,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:45,180 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) [2022-02-15 00:42:47,189 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 [] [2022-02-15 00:42:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:47,644 INFO L93 Difference]: Finished difference Result 383 states and 581 transitions. [2022-02-15 00:42:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:47,645 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 [2022-02-15 00:42:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:47,646 INFO L225 Difference]: With dead ends: 383 [2022-02-15 00:42:47,646 INFO L226 Difference]: Without dead ends: 383 [2022-02-15 00:42:47,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:47,646 INFO L933 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 [2022-02-15 00:42:47,646 INFO L934 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] [2022-02-15 00:42:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-02-15 00:42:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 316. [2022-02-15 00:42:47,650 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) [2022-02-15 00:42:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 487 transitions. [2022-02-15 00:42:47,651 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 487 transitions. Word has length 122 [2022-02-15 00:42:47,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:47,651 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 487 transitions. [2022-02-15 00:42:47,651 INFO L471 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) [2022-02-15 00:42:47,651 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 487 transitions. [2022-02-15 00:42:47,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-15 00:42:47,652 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:47,652 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:47,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:42:47,652 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:47,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:47,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1708077500, now seen corresponding path program 1 times [2022-02-15 00:42:47,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:47,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115827960] [2022-02-15 00:42:47,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:47,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:42:47,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:47,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115827960] [2022-02-15 00:42:47,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115827960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:47,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:47,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:47,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761554864] [2022-02-15 00:42:47,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:47,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:47,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:47,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:47,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:47,761 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) [2022-02-15 00:42:49,770 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 [] [2022-02-15 00:42:50,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:50,253 INFO L93 Difference]: Finished difference Result 435 states and 661 transitions. [2022-02-15 00:42:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:50,253 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 [2022-02-15 00:42:50,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:50,255 INFO L225 Difference]: With dead ends: 435 [2022-02-15 00:42:50,255 INFO L226 Difference]: Without dead ends: 435 [2022-02-15 00:42:50,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:50,255 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:50,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 353 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:42:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-02-15 00:42:50,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 314. [2022-02-15 00:42:50,260 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) [2022-02-15 00:42:50,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 484 transitions. [2022-02-15 00:42:50,260 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 484 transitions. Word has length 122 [2022-02-15 00:42:50,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:50,261 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 484 transitions. [2022-02-15 00:42:50,261 INFO L471 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) [2022-02-15 00:42:50,261 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 484 transitions. [2022-02-15 00:42:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-02-15 00:42:50,262 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:50,262 INFO L514 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] [2022-02-15 00:42:50,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:42:50,262 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:50,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:50,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1257864063, now seen corresponding path program 1 times [2022-02-15 00:42:50,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:50,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004193290] [2022-02-15 00:42:50,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:50,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-15 00:42:50,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:50,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004193290] [2022-02-15 00:42:50,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004193290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:50,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:50,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:42:50,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478261533] [2022-02-15 00:42:50,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:50,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:42:50,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:50,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:42:50,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:42:50,356 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) [2022-02-15 00:42:52,367 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 [] [2022-02-15 00:42:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:52,765 INFO L93 Difference]: Finished difference Result 385 states and 575 transitions. [2022-02-15 00:42:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:42:52,765 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 [2022-02-15 00:42:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:52,766 INFO L225 Difference]: With dead ends: 385 [2022-02-15 00:42:52,767 INFO L226 Difference]: Without dead ends: 385 [2022-02-15 00:42:52,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:42:52,767 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 140 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:52,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:52,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-15 00:42:52,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 314. [2022-02-15 00:42:52,771 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) [2022-02-15 00:42:52,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 479 transitions. [2022-02-15 00:42:52,772 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 479 transitions. Word has length 128 [2022-02-15 00:42:52,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:52,772 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 479 transitions. [2022-02-15 00:42:52,772 INFO L471 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) [2022-02-15 00:42:52,772 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 479 transitions. [2022-02-15 00:42:52,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 00:42:52,773 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:52,773 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:52,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:42:52,773 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:52,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:52,774 INFO L85 PathProgramCache]: Analyzing trace with hash -365757816, now seen corresponding path program 1 times [2022-02-15 00:42:52,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:52,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799881073] [2022-02-15 00:42:52,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:52,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:52,866 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:42:52,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:52,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799881073] [2022-02-15 00:42:52,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799881073] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:52,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:52,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:42:52,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389299446] [2022-02-15 00:42:52,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:52,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:52,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:52,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:52,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:42:52,868 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) [2022-02-15 00:42:54,883 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 [] [2022-02-15 00:42:55,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:55,303 INFO L93 Difference]: Finished difference Result 597 states and 917 transitions. [2022-02-15 00:42:55,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:55,304 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 [2022-02-15 00:42:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:55,328 INFO L225 Difference]: With dead ends: 597 [2022-02-15 00:42:55,328 INFO L226 Difference]: Without dead ends: 597 [2022-02-15 00:42:55,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:42:55,328 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:55,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 565 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:42:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-02-15 00:42:55,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-02-15 00:42:55,334 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) [2022-02-15 00:42:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 917 transitions. [2022-02-15 00:42:55,336 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 917 transitions. Word has length 133 [2022-02-15 00:42:55,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:55,337 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 917 transitions. [2022-02-15 00:42:55,337 INFO L471 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) [2022-02-15 00:42:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 917 transitions. [2022-02-15 00:42:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 00:42:55,338 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:55,338 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:55,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:42:55,338 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:55,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:55,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2066498295, now seen corresponding path program 1 times [2022-02-15 00:42:55,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:55,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627886231] [2022-02-15 00:42:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:55,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:42:55,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:55,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627886231] [2022-02-15 00:42:55,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627886231] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:55,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:55,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:42:55,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689819109] [2022-02-15 00:42:55,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:55,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:55,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:42:55,426 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) [2022-02-15 00:42:57,439 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 [] [2022-02-15 00:42:57,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:42:57,728 INFO L93 Difference]: Finished difference Result 838 states and 1284 transitions. [2022-02-15 00:42:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:42:57,729 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 [2022-02-15 00:42:57,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:42:57,731 INFO L225 Difference]: With dead ends: 838 [2022-02-15 00:42:57,731 INFO L226 Difference]: Without dead ends: 838 [2022-02-15 00:42:57,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:42:57,732 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 138 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:42:57,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 438 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:42:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-02-15 00:42:57,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-02-15 00:42:57,741 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) [2022-02-15 00:42:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1284 transitions. [2022-02-15 00:42:57,742 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1284 transitions. Word has length 133 [2022-02-15 00:42:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:42:57,743 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1284 transitions. [2022-02-15 00:42:57,743 INFO L471 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) [2022-02-15 00:42:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1284 transitions. [2022-02-15 00:42:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 00:42:57,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:42:57,744 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:42:57,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:42:57,745 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:42:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:42:57,745 INFO L85 PathProgramCache]: Analyzing trace with hash -212152758, now seen corresponding path program 1 times [2022-02-15 00:42:57,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:42:57,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375528755] [2022-02-15 00:42:57,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:42:57,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:42:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:42:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:42:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-15 00:42:57,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:42:57,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375528755] [2022-02-15 00:42:57,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375528755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:42:57,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:42:57,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:42:57,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943753325] [2022-02-15 00:42:57,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:42:57,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:42:57,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:42:57,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:42:57,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:42:57,827 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) [2022-02-15 00:42:59,839 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 [] [2022-02-15 00:43:00,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:00,087 INFO L93 Difference]: Finished difference Result 865 states and 1319 transitions. [2022-02-15 00:43:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:43:00,087 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 [2022-02-15 00:43:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:00,089 INFO L225 Difference]: With dead ends: 865 [2022-02-15 00:43:00,090 INFO L226 Difference]: Without dead ends: 865 [2022-02-15 00:43:00,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:43:00,090 INFO L933 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 [2022-02-15 00:43:00,090 INFO L934 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] [2022-02-15 00:43:00,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-02-15 00:43:00,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-02-15 00:43:00,098 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) [2022-02-15 00:43:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1319 transitions. [2022-02-15 00:43:00,100 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1319 transitions. Word has length 133 [2022-02-15 00:43:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:00,100 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 1319 transitions. [2022-02-15 00:43:00,100 INFO L471 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) [2022-02-15 00:43:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1319 transitions. [2022-02-15 00:43:00,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 00:43:00,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:00,102 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:00,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:43:00,102 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:00,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:00,102 INFO L85 PathProgramCache]: Analyzing trace with hash 864400651, now seen corresponding path program 1 times [2022-02-15 00:43:00,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:00,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303075628] [2022-02-15 00:43:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:00,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-15 00:43:00,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:00,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303075628] [2022-02-15 00:43:00,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303075628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:00,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:00,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:43:00,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754713781] [2022-02-15 00:43:00,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:00,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:43:00,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:00,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:43:00,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:43:00,230 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) [2022-02-15 00:43:02,243 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 [] [2022-02-15 00:43:02,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:02,482 INFO L93 Difference]: Finished difference Result 867 states and 1321 transitions. [2022-02-15 00:43:02,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:43:02,482 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 [2022-02-15 00:43:02,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:02,484 INFO L225 Difference]: With dead ends: 867 [2022-02-15 00:43:02,484 INFO L226 Difference]: Without dead ends: 867 [2022-02-15 00:43:02,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:43:02,485 INFO L933 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 [2022-02-15 00:43:02,485 INFO L934 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] [2022-02-15 00:43:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-02-15 00:43:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-02-15 00:43:02,499 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) [2022-02-15 00:43:02,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1321 transitions. [2022-02-15 00:43:02,501 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1321 transitions. Word has length 133 [2022-02-15 00:43:02,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:02,501 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1321 transitions. [2022-02-15 00:43:02,501 INFO L471 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) [2022-02-15 00:43:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1321 transitions. [2022-02-15 00:43:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-15 00:43:02,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:02,504 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-02-15 00:43:02,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:43:02,504 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:02,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1563265549, now seen corresponding path program 1 times [2022-02-15 00:43:02,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:02,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958902856] [2022-02-15 00:43:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:02,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:02,626 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-15 00:43:02,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:02,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958902856] [2022-02-15 00:43:02,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958902856] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:02,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:02,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:02,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703174259] [2022-02-15 00:43:02,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:02,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:02,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:02,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:02,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:02,628 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) [2022-02-15 00:43:04,635 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 [] [2022-02-15 00:43:05,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:05,055 INFO L93 Difference]: Finished difference Result 1296 states and 1961 transitions. [2022-02-15 00:43:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:05,055 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 [2022-02-15 00:43:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:05,058 INFO L225 Difference]: With dead ends: 1296 [2022-02-15 00:43:05,058 INFO L226 Difference]: Without dead ends: 1296 [2022-02-15 00:43:05,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:05,059 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 110 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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 [2022-02-15 00:43:05,059 INFO L934 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] [2022-02-15 00:43:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-02-15 00:43:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1083. [2022-02-15 00:43:05,071 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) [2022-02-15 00:43:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1676 transitions. [2022-02-15 00:43:05,073 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1676 transitions. Word has length 213 [2022-02-15 00:43:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:05,073 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1676 transitions. [2022-02-15 00:43:05,073 INFO L471 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) [2022-02-15 00:43:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1676 transitions. [2022-02-15 00:43:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-15 00:43:05,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:05,075 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:43:05,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:43:05,075 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1764133390, now seen corresponding path program 1 times [2022-02-15 00:43:05,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:05,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626208340] [2022-02-15 00:43:05,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:05,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:05,222 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-15 00:43:05,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:05,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626208340] [2022-02-15 00:43:05,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626208340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:05,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:05,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:05,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942538467] [2022-02-15 00:43:05,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:05,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:05,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:05,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:05,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:05,224 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) [2022-02-15 00:43:07,232 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 [] [2022-02-15 00:43:07,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:07,709 INFO L93 Difference]: Finished difference Result 1182 states and 1801 transitions. [2022-02-15 00:43:07,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:07,710 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 [2022-02-15 00:43:07,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:07,713 INFO L225 Difference]: With dead ends: 1182 [2022-02-15 00:43:07,713 INFO L226 Difference]: Without dead ends: 1182 [2022-02-15 00:43:07,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:07,713 INFO L933 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 [2022-02-15 00:43:07,713 INFO L934 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] [2022-02-15 00:43:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-02-15 00:43:07,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1083. [2022-02-15 00:43:07,722 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) [2022-02-15 00:43:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1674 transitions. [2022-02-15 00:43:07,724 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1674 transitions. Word has length 214 [2022-02-15 00:43:07,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:07,724 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1674 transitions. [2022-02-15 00:43:07,724 INFO L471 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) [2022-02-15 00:43:07,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1674 transitions. [2022-02-15 00:43:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-15 00:43:07,726 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:07,726 INFO L514 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] [2022-02-15 00:43:07,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:43:07,726 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:07,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash -594230739, now seen corresponding path program 1 times [2022-02-15 00:43:07,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:07,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176985211] [2022-02-15 00:43:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:07,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:07,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:07,832 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:07,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:07,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176985211] [2022-02-15 00:43:07,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176985211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:07,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:07,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:07,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899239670] [2022-02-15 00:43:07,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:07,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:07,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:07,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:07,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:07,833 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) [2022-02-15 00:43:09,847 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 [] [2022-02-15 00:43:10,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:10,360 INFO L93 Difference]: Finished difference Result 1180 states and 1797 transitions. [2022-02-15 00:43:10,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:10,360 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 [2022-02-15 00:43:10,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:10,363 INFO L225 Difference]: With dead ends: 1180 [2022-02-15 00:43:10,363 INFO L226 Difference]: Without dead ends: 1180 [2022-02-15 00:43:10,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:10,364 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 96 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:10,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 623 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 589 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:43:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-02-15 00:43:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1083. [2022-02-15 00:43:10,408 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) [2022-02-15 00:43:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1672 transitions. [2022-02-15 00:43:10,410 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1672 transitions. Word has length 228 [2022-02-15 00:43:10,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:10,410 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1672 transitions. [2022-02-15 00:43:10,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1672 transitions. [2022-02-15 00:43:10,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-02-15 00:43:10,413 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:10,413 INFO L514 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] [2022-02-15 00:43:10,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:43:10,413 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:10,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1637329481, now seen corresponding path program 1 times [2022-02-15 00:43:10,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:10,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875297889] [2022-02-15 00:43:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:10,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:10,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875297889] [2022-02-15 00:43:10,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875297889] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:10,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:10,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:10,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413841248] [2022-02-15 00:43:10,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:10,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:10,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:10,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:10,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:10,552 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) [2022-02-15 00:43:12,560 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 [] [2022-02-15 00:43:13,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:13,020 INFO L93 Difference]: Finished difference Result 1160 states and 1769 transitions. [2022-02-15 00:43:13,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:13,020 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 [2022-02-15 00:43:13,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:13,024 INFO L225 Difference]: With dead ends: 1160 [2022-02-15 00:43:13,024 INFO L226 Difference]: Without dead ends: 1160 [2022-02-15 00:43:13,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:13,029 INFO L933 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 [2022-02-15 00:43:13,029 INFO L934 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] [2022-02-15 00:43:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-02-15 00:43:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-02-15 00:43:13,039 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) [2022-02-15 00:43:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1670 transitions. [2022-02-15 00:43:13,041 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1670 transitions. Word has length 232 [2022-02-15 00:43:13,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:13,041 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1670 transitions. [2022-02-15 00:43:13,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:13,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1670 transitions. [2022-02-15 00:43:13,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-15 00:43:13,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:13,044 INFO L514 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] [2022-02-15 00:43:13,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:43:13,044 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:13,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:13,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1788020019, now seen corresponding path program 1 times [2022-02-15 00:43:13,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:13,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903649098] [2022-02-15 00:43:13,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:13,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:13,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:13,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:13,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903649098] [2022-02-15 00:43:13,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903649098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:13,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:13,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:13,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995082195] [2022-02-15 00:43:13,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:13,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:13,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:13,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:13,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:13,160 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) [2022-02-15 00:43:15,167 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 [] [2022-02-15 00:43:15,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:15,645 INFO L93 Difference]: Finished difference Result 1287 states and 1926 transitions. [2022-02-15 00:43:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:15,645 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 [2022-02-15 00:43:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:15,649 INFO L225 Difference]: With dead ends: 1287 [2022-02-15 00:43:15,649 INFO L226 Difference]: Without dead ends: 1287 [2022-02-15 00:43:15,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:15,649 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 127 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:15,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:43:15,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-02-15 00:43:15,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1083. [2022-02-15 00:43:15,661 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) [2022-02-15 00:43:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1656 transitions. [2022-02-15 00:43:15,663 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1656 transitions. Word has length 236 [2022-02-15 00:43:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:15,663 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1656 transitions. [2022-02-15 00:43:15,663 INFO L471 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) [2022-02-15 00:43:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1656 transitions. [2022-02-15 00:43:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-15 00:43:15,665 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:15,665 INFO L514 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] [2022-02-15 00:43:15,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:43:15,666 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:15,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:15,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2083420877, now seen corresponding path program 1 times [2022-02-15 00:43:15,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:15,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632703974] [2022-02-15 00:43:15,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:15,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:15,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:15,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632703974] [2022-02-15 00:43:15,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632703974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:15,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:15,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:15,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880902489] [2022-02-15 00:43:15,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:15,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:15,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:15,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:15,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:15,780 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) [2022-02-15 00:43:17,788 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 [] [2022-02-15 00:43:18,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:18,271 INFO L93 Difference]: Finished difference Result 1160 states and 1753 transitions. [2022-02-15 00:43:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:18,272 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 [2022-02-15 00:43:18,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:18,275 INFO L225 Difference]: With dead ends: 1160 [2022-02-15 00:43:18,275 INFO L226 Difference]: Without dead ends: 1160 [2022-02-15 00:43:18,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:18,275 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 80 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:18,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 605 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:43:18,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-02-15 00:43:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1083. [2022-02-15 00:43:18,284 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) [2022-02-15 00:43:18,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1654 transitions. [2022-02-15 00:43:18,289 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1654 transitions. Word has length 236 [2022-02-15 00:43:18,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:18,290 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1654 transitions. [2022-02-15 00:43:18,290 INFO L471 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) [2022-02-15 00:43:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1654 transitions. [2022-02-15 00:43:18,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-02-15 00:43:18,292 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:18,292 INFO L514 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] [2022-02-15 00:43:18,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:43:18,292 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:18,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:18,292 INFO L85 PathProgramCache]: Analyzing trace with hash 993793841, now seen corresponding path program 1 times [2022-02-15 00:43:18,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:18,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578911003] [2022-02-15 00:43:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:18,417 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:18,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:18,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578911003] [2022-02-15 00:43:18,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578911003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:18,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:18,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:18,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242679552] [2022-02-15 00:43:18,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:18,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:18,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:18,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:18,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:18,419 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) [2022-02-15 00:43:20,426 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 [] [2022-02-15 00:43:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:20,863 INFO L93 Difference]: Finished difference Result 1150 states and 1737 transitions. [2022-02-15 00:43:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:20,863 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 [2022-02-15 00:43:20,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:20,866 INFO L225 Difference]: With dead ends: 1150 [2022-02-15 00:43:20,866 INFO L226 Difference]: Without dead ends: 1150 [2022-02-15 00:43:20,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:20,867 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 76 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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 [2022-02-15 00:43:20,867 INFO L934 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] [2022-02-15 00:43:20,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2022-02-15 00:43:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1083. [2022-02-15 00:43:20,875 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) [2022-02-15 00:43:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1652 transitions. [2022-02-15 00:43:20,876 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1652 transitions. Word has length 237 [2022-02-15 00:43:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:20,876 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1652 transitions. [2022-02-15 00:43:20,877 INFO L471 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) [2022-02-15 00:43:20,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1652 transitions. [2022-02-15 00:43:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-02-15 00:43:20,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:20,879 INFO L514 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] [2022-02-15 00:43:20,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:43:20,879 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash 724224944, now seen corresponding path program 1 times [2022-02-15 00:43:20,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:20,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150917906] [2022-02-15 00:43:20,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:20,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:20,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:20,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150917906] [2022-02-15 00:43:20,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150917906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:20,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:20,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:20,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849147690] [2022-02-15 00:43:20,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:20,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:20,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:20,993 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) [2022-02-15 00:43:23,001 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 [] [2022-02-15 00:43:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:23,449 INFO L93 Difference]: Finished difference Result 1142 states and 1725 transitions. [2022-02-15 00:43:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:23,450 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 [2022-02-15 00:43:23,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:23,452 INFO L225 Difference]: With dead ends: 1142 [2022-02-15 00:43:23,453 INFO L226 Difference]: Without dead ends: 1142 [2022-02-15 00:43:23,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:23,453 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 69 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:23,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 589 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-02-15 00:43:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-02-15 00:43:23,462 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) [2022-02-15 00:43:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1650 transitions. [2022-02-15 00:43:23,463 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1650 transitions. Word has length 237 [2022-02-15 00:43:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:23,463 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1650 transitions. [2022-02-15 00:43:23,463 INFO L471 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) [2022-02-15 00:43:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1650 transitions. [2022-02-15 00:43:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-15 00:43:23,465 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:23,466 INFO L514 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] [2022-02-15 00:43:23,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:43:23,466 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:23,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 799309157, now seen corresponding path program 1 times [2022-02-15 00:43:23,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:23,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906580615] [2022-02-15 00:43:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:23,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:23,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:23,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:23,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906580615] [2022-02-15 00:43:23,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906580615] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:23,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:23,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:23,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469723019] [2022-02-15 00:43:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:23,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:23,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:23,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:23,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:23,609 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) [2022-02-15 00:43:25,623 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 [] [2022-02-15 00:43:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:26,095 INFO L93 Difference]: Finished difference Result 1142 states and 1723 transitions. [2022-02-15 00:43:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:26,096 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 [2022-02-15 00:43:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:26,099 INFO L225 Difference]: With dead ends: 1142 [2022-02-15 00:43:26,099 INFO L226 Difference]: Without dead ends: 1142 [2022-02-15 00:43:26,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:26,100 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 65 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:26,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 587 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:43:26,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-02-15 00:43:26,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1083. [2022-02-15 00:43:26,110 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) [2022-02-15 00:43:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1648 transitions. [2022-02-15 00:43:26,112 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1648 transitions. Word has length 239 [2022-02-15 00:43:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:26,112 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1648 transitions. [2022-02-15 00:43:26,112 INFO L471 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) [2022-02-15 00:43:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1648 transitions. [2022-02-15 00:43:26,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-15 00:43:26,114 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:26,114 INFO L514 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] [2022-02-15 00:43:26,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:43:26,114 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:26,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:26,115 INFO L85 PathProgramCache]: Analyzing trace with hash 858623079, now seen corresponding path program 1 times [2022-02-15 00:43:26,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:26,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914206228] [2022-02-15 00:43:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:26,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:26,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:26,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914206228] [2022-02-15 00:43:26,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914206228] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:26,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:26,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:26,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195409580] [2022-02-15 00:43:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:26,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:26,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:26,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:26,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:26,255 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) [2022-02-15 00:43:28,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:30,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:32,837 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 [] [2022-02-15 00:43:33,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:33,266 INFO L93 Difference]: Finished difference Result 1126 states and 1695 transitions. [2022-02-15 00:43:33,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:33,267 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 [2022-02-15 00:43:33,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:33,270 INFO L225 Difference]: With dead ends: 1126 [2022-02-15 00:43:33,270 INFO L226 Difference]: Without dead ends: 1126 [2022-02-15 00:43:33,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:33,270 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 54 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:33,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 577 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 495 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 00:43:33,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-02-15 00:43:33,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1083. [2022-02-15 00:43:33,278 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) [2022-02-15 00:43:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1646 transitions. [2022-02-15 00:43:33,279 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1646 transitions. Word has length 240 [2022-02-15 00:43:33,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:33,279 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1646 transitions. [2022-02-15 00:43:33,280 INFO L471 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) [2022-02-15 00:43:33,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1646 transitions. [2022-02-15 00:43:33,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-02-15 00:43:33,281 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:33,281 INFO L514 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] [2022-02-15 00:43:33,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:43:33,282 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:33,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1164096122, now seen corresponding path program 1 times [2022-02-15 00:43:33,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:33,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571891321] [2022-02-15 00:43:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:33,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:33,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:33,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:33,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571891321] [2022-02-15 00:43:33,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571891321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:33,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:33,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:33,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113734611] [2022-02-15 00:43:33,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:33,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:33,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:33,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:33,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:33,400 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) [2022-02-15 00:43:35,407 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 [] [2022-02-15 00:43:35,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:35,827 INFO L93 Difference]: Finished difference Result 1413 states and 2109 transitions. [2022-02-15 00:43:35,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:35,828 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 [2022-02-15 00:43:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:35,832 INFO L225 Difference]: With dead ends: 1413 [2022-02-15 00:43:35,832 INFO L226 Difference]: Without dead ends: 1413 [2022-02-15 00:43:35,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:35,833 INFO L933 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 [2022-02-15 00:43:35,833 INFO L934 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] [2022-02-15 00:43:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-02-15 00:43:35,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1173. [2022-02-15 00:43:35,845 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) [2022-02-15 00:43:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1776 transitions. [2022-02-15 00:43:35,848 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1776 transitions. Word has length 241 [2022-02-15 00:43:35,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:35,848 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1776 transitions. [2022-02-15 00:43:35,848 INFO L471 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) [2022-02-15 00:43:35,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1776 transitions. [2022-02-15 00:43:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-02-15 00:43:35,851 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:35,851 INFO L514 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] [2022-02-15 00:43:35,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:43:35,852 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:35,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:35,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2061310594, now seen corresponding path program 1 times [2022-02-15 00:43:35,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:35,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139595616] [2022-02-15 00:43:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:35,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:36,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:36,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139595616] [2022-02-15 00:43:36,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139595616] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:36,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:36,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:36,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656333335] [2022-02-15 00:43:36,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:36,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:36,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:36,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:36,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:36,030 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) [2022-02-15 00:43:38,038 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 [] [2022-02-15 00:43:38,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:38,428 INFO L93 Difference]: Finished difference Result 1216 states and 1823 transitions. [2022-02-15 00:43:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:38,429 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 [2022-02-15 00:43:38,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:38,432 INFO L225 Difference]: With dead ends: 1216 [2022-02-15 00:43:38,432 INFO L226 Difference]: Without dead ends: 1216 [2022-02-15 00:43:38,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:38,433 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 55 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:38,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 573 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-02-15 00:43:38,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1173. [2022-02-15 00:43:38,442 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) [2022-02-15 00:43:38,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1774 transitions. [2022-02-15 00:43:38,443 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1774 transitions. Word has length 242 [2022-02-15 00:43:38,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:38,444 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1774 transitions. [2022-02-15 00:43:38,444 INFO L471 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) [2022-02-15 00:43:38,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1774 transitions. [2022-02-15 00:43:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-02-15 00:43:38,446 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:38,446 INFO L514 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] [2022-02-15 00:43:38,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:43:38,446 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash -691949702, now seen corresponding path program 1 times [2022-02-15 00:43:38,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:38,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386650117] [2022-02-15 00:43:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:38,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:38,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:38,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386650117] [2022-02-15 00:43:38,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386650117] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:38,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:38,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:38,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797822966] [2022-02-15 00:43:38,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:38,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:38,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:38,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:38,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:38,592 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) [2022-02-15 00:43:40,601 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 [] [2022-02-15 00:43:40,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:40,981 INFO L93 Difference]: Finished difference Result 1212 states and 1817 transitions. [2022-02-15 00:43:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:40,981 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 [2022-02-15 00:43:40,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:40,984 INFO L225 Difference]: With dead ends: 1212 [2022-02-15 00:43:40,984 INFO L226 Difference]: Without dead ends: 1212 [2022-02-15 00:43:40,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:40,984 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 48 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:40,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 569 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:43:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-02-15 00:43:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1173. [2022-02-15 00:43:40,993 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) [2022-02-15 00:43:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1772 transitions. [2022-02-15 00:43:40,998 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1772 transitions. Word has length 242 [2022-02-15 00:43:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:40,998 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1772 transitions. [2022-02-15 00:43:40,998 INFO L471 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) [2022-02-15 00:43:40,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1772 transitions. [2022-02-15 00:43:41,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-02-15 00:43:41,000 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:41,000 INFO L514 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] [2022-02-15 00:43:41,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:43:41,000 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:41,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash 273964732, now seen corresponding path program 1 times [2022-02-15 00:43:41,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:41,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775864063] [2022-02-15 00:43:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:41,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:41,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775864063] [2022-02-15 00:43:41,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775864063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:41,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:41,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:41,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388266500] [2022-02-15 00:43:41,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:41,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:41,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:41,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:41,179 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) [2022-02-15 00:43:43,195 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 [] [2022-02-15 00:43:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:43,582 INFO L93 Difference]: Finished difference Result 1208 states and 1809 transitions. [2022-02-15 00:43:43,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:43,582 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 [2022-02-15 00:43:43,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:43,585 INFO L225 Difference]: With dead ends: 1208 [2022-02-15 00:43:43,585 INFO L226 Difference]: Without dead ends: 1208 [2022-02-15 00:43:43,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:43,586 INFO L933 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 [2022-02-15 00:43:43,586 INFO L934 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] [2022-02-15 00:43:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-02-15 00:43:43,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1173. [2022-02-15 00:43:43,598 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) [2022-02-15 00:43:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1770 transitions. [2022-02-15 00:43:43,600 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1770 transitions. Word has length 243 [2022-02-15 00:43:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:43,600 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1770 transitions. [2022-02-15 00:43:43,600 INFO L471 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) [2022-02-15 00:43:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1770 transitions. [2022-02-15 00:43:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-02-15 00:43:43,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:43,602 INFO L514 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] [2022-02-15 00:43:43,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:43:43,602 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:43,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:43,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1984975413, now seen corresponding path program 1 times [2022-02-15 00:43:43,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:43,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949637000] [2022-02-15 00:43:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:43,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:43,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:43,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949637000] [2022-02-15 00:43:43,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949637000] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:43,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:43,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:43,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344291491] [2022-02-15 00:43:43,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:43,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:43,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:43,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:43,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:43,726 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) [2022-02-15 00:43:45,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:47,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:49,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:51,742 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 [] [2022-02-15 00:43:52,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:52,197 INFO L93 Difference]: Finished difference Result 1503 states and 2239 transitions. [2022-02-15 00:43:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:52,197 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 [2022-02-15 00:43:52,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:52,200 INFO L225 Difference]: With dead ends: 1503 [2022-02-15 00:43:52,200 INFO L226 Difference]: Without dead ends: 1503 [2022-02-15 00:43:52,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:52,200 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 116 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:52,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 325 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 464 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2022-02-15 00:43:52,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-02-15 00:43:52,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1272. [2022-02-15 00:43:52,245 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) [2022-02-15 00:43:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1921 transitions. [2022-02-15 00:43:52,246 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1921 transitions. Word has length 245 [2022-02-15 00:43:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:52,246 INFO L470 AbstractCegarLoop]: Abstraction has 1272 states and 1921 transitions. [2022-02-15 00:43:52,247 INFO L471 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) [2022-02-15 00:43:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1921 transitions. [2022-02-15 00:43:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-02-15 00:43:52,248 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:52,248 INFO L514 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] [2022-02-15 00:43:52,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:43:52,249 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:52,249 INFO L85 PathProgramCache]: Analyzing trace with hash -443370408, now seen corresponding path program 1 times [2022-02-15 00:43:52,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:52,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758229152] [2022-02-15 00:43:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:52,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:52,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:52,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758229152] [2022-02-15 00:43:52,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758229152] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:52,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:52,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:52,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861841270] [2022-02-15 00:43:52,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:52,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:52,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:52,376 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) [2022-02-15 00:43:54,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:54,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:54,763 INFO L93 Difference]: Finished difference Result 1299 states and 1948 transitions. [2022-02-15 00:43:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:54,763 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 [2022-02-15 00:43:54,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:54,765 INFO L225 Difference]: With dead ends: 1299 [2022-02-15 00:43:54,766 INFO L226 Difference]: Without dead ends: 1299 [2022-02-15 00:43:54,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:54,766 INFO L933 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 [2022-02-15 00:43:54,766 INFO L934 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] [2022-02-15 00:43:54,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2022-02-15 00:43:54,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1272. [2022-02-15 00:43:54,778 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) [2022-02-15 00:43:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1919 transitions. [2022-02-15 00:43:54,779 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1919 transitions. Word has length 246 [2022-02-15 00:43:54,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:54,779 INFO L470 AbstractCegarLoop]: Abstraction has 1272 states and 1919 transitions. [2022-02-15 00:43:54,780 INFO L471 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) [2022-02-15 00:43:54,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1919 transitions. [2022-02-15 00:43:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-02-15 00:43:54,782 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:54,782 INFO L514 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] [2022-02-15 00:43:54,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:43:54,782 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:54,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:54,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1923509620, now seen corresponding path program 1 times [2022-02-15 00:43:54,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:54,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261676915] [2022-02-15 00:43:54,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:54,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:54,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:54,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261676915] [2022-02-15 00:43:54,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261676915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:54,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:54,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:54,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308823753] [2022-02-15 00:43:54,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:54,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:54,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:54,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:54,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:54,916 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) [2022-02-15 00:43:56,924 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 [] [2022-02-15 00:43:57,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:57,385 INFO L93 Difference]: Finished difference Result 1602 states and 2382 transitions. [2022-02-15 00:43:57,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:57,386 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 [2022-02-15 00:43:57,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:57,388 INFO L225 Difference]: With dead ends: 1602 [2022-02-15 00:43:57,388 INFO L226 Difference]: Without dead ends: 1602 [2022-02-15 00:43:57,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:57,389 INFO L933 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 [2022-02-15 00:43:57,389 INFO L934 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] [2022-02-15 00:43:57,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-02-15 00:43:57,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1377. [2022-02-15 00:43:57,399 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) [2022-02-15 00:43:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2076 transitions. [2022-02-15 00:43:57,400 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2076 transitions. Word has length 246 [2022-02-15 00:43:57,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:57,400 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 2076 transitions. [2022-02-15 00:43:57,401 INFO L471 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) [2022-02-15 00:43:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2076 transitions. [2022-02-15 00:43:57,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-02-15 00:43:57,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:57,403 INFO L514 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] [2022-02-15 00:43:57,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:43:57,403 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1170471363, now seen corresponding path program 1 times [2022-02-15 00:43:57,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:57,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111973050] [2022-02-15 00:43:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:57,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:57,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-15 00:43:57,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:57,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111973050] [2022-02-15 00:43:57,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111973050] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:57,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:57,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:57,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72634235] [2022-02-15 00:43:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:57,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:57,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:57,537 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) [2022-02-15 00:43:59,548 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 [] [2022-02-15 00:43:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:59,918 INFO L93 Difference]: Finished difference Result 1400 states and 2099 transitions. [2022-02-15 00:43:59,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:59,919 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 [2022-02-15 00:43:59,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:59,921 INFO L225 Difference]: With dead ends: 1400 [2022-02-15 00:43:59,921 INFO L226 Difference]: Without dead ends: 1400 [2022-02-15 00:43:59,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:43:59,921 INFO L933 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 [2022-02-15 00:43:59,922 INFO L934 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] [2022-02-15 00:43:59,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2022-02-15 00:43:59,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1377. [2022-02-15 00:43:59,930 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) [2022-02-15 00:43:59,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2074 transitions. [2022-02-15 00:43:59,932 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2074 transitions. Word has length 247 [2022-02-15 00:43:59,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:59,932 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 2074 transitions. [2022-02-15 00:43:59,932 INFO L471 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) [2022-02-15 00:43:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2074 transitions. [2022-02-15 00:43:59,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-02-15 00:43:59,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:59,934 INFO L514 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] [2022-02-15 00:43:59,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:43:59,934 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:59,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:59,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1312124425, now seen corresponding path program 1 times [2022-02-15 00:43:59,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:59,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046767014] [2022-02-15 00:43:59,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:59,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:00,091 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-02-15 00:44:00,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:00,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046767014] [2022-02-15 00:44:00,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046767014] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:00,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:00,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:00,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746036575] [2022-02-15 00:44:00,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:00,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:00,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:00,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:00,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:00,093 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) [2022-02-15 00:44:02,100 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 [] [2022-02-15 00:44:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:02,522 INFO L93 Difference]: Finished difference Result 1707 states and 2534 transitions. [2022-02-15 00:44:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:02,522 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 [2022-02-15 00:44:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:02,525 INFO L225 Difference]: With dead ends: 1707 [2022-02-15 00:44:02,525 INFO L226 Difference]: Without dead ends: 1707 [2022-02-15 00:44:02,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:02,525 INFO L933 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 [2022-02-15 00:44:02,525 INFO L934 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] [2022-02-15 00:44:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-02-15 00:44:02,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1488. [2022-02-15 00:44:02,535 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) [2022-02-15 00:44:02,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2240 transitions. [2022-02-15 00:44:02,537 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2240 transitions. Word has length 247 [2022-02-15 00:44:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:02,537 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 2240 transitions. [2022-02-15 00:44:02,537 INFO L471 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) [2022-02-15 00:44:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2240 transitions. [2022-02-15 00:44:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-02-15 00:44:02,539 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:02,539 INFO L514 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] [2022-02-15 00:44:02,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 00:44:02,540 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:02,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:02,540 INFO L85 PathProgramCache]: Analyzing trace with hash -89380643, now seen corresponding path program 1 times [2022-02-15 00:44:02,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:02,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303488363] [2022-02-15 00:44:02,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:02,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-02-15 00:44:02,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:02,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303488363] [2022-02-15 00:44:02,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303488363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:02,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:02,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:02,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351927666] [2022-02-15 00:44:02,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:02,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:02,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:02,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:02,650 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) [2022-02-15 00:44:04,658 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 [] [2022-02-15 00:44:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:05,035 INFO L93 Difference]: Finished difference Result 1507 states and 2259 transitions. [2022-02-15 00:44:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:05,036 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 [2022-02-15 00:44:05,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:05,038 INFO L225 Difference]: With dead ends: 1507 [2022-02-15 00:44:05,038 INFO L226 Difference]: Without dead ends: 1507 [2022-02-15 00:44:05,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:05,040 INFO L933 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 [2022-02-15 00:44:05,041 INFO L934 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] [2022-02-15 00:44:05,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-02-15 00:44:05,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1488. [2022-02-15 00:44:05,052 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) [2022-02-15 00:44:05,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2238 transitions. [2022-02-15 00:44:05,054 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2238 transitions. Word has length 248 [2022-02-15 00:44:05,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:05,054 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 2238 transitions. [2022-02-15 00:44:05,054 INFO L471 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) [2022-02-15 00:44:05,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2238 transitions. [2022-02-15 00:44:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-02-15 00:44:05,056 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:05,056 INFO L514 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] [2022-02-15 00:44:05,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 00:44:05,056 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:05,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash -869309252, now seen corresponding path program 1 times [2022-02-15 00:44:05,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:05,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450758508] [2022-02-15 00:44:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:05,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:05,177 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-02-15 00:44:05,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:05,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450758508] [2022-02-15 00:44:05,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450758508] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:05,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:05,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:05,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498752056] [2022-02-15 00:44:05,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:05,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:05,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:05,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:05,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:05,178 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) [2022-02-15 00:44:06,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:08,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:10,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:12,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:13,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:13,268 INFO L93 Difference]: Finished difference Result 1818 states and 2673 transitions. [2022-02-15 00:44:13,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:13,268 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 [2022-02-15 00:44:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:13,271 INFO L225 Difference]: With dead ends: 1818 [2022-02-15 00:44:13,271 INFO L226 Difference]: Without dead ends: 1818 [2022-02-15 00:44:13,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:13,271 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:13,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 362 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-15 00:44:13,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2022-02-15 00:44:13,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1545. [2022-02-15 00:44:13,282 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) [2022-02-15 00:44:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2289 transitions. [2022-02-15 00:44:13,283 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2289 transitions. Word has length 253 [2022-02-15 00:44:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:13,283 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 2289 transitions. [2022-02-15 00:44:13,283 INFO L471 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) [2022-02-15 00:44:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2289 transitions. [2022-02-15 00:44:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-02-15 00:44:13,285 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:13,285 INFO L514 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] [2022-02-15 00:44:13,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 00:44:13,286 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:13,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:13,286 INFO L85 PathProgramCache]: Analyzing trace with hash -48354360, now seen corresponding path program 1 times [2022-02-15 00:44:13,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:13,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675600139] [2022-02-15 00:44:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:13,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-02-15 00:44:13,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:13,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675600139] [2022-02-15 00:44:13,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675600139] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:13,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:13,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:13,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54387684] [2022-02-15 00:44:13,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:13,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:13,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:13,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:13,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:13,428 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) [2022-02-15 00:44:15,436 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 [] [2022-02-15 00:44:15,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:15,790 INFO L93 Difference]: Finished difference Result 1564 states and 2308 transitions. [2022-02-15 00:44:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:15,791 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 [2022-02-15 00:44:15,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:15,793 INFO L225 Difference]: With dead ends: 1564 [2022-02-15 00:44:15,793 INFO L226 Difference]: Without dead ends: 1564 [2022-02-15 00:44:15,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:15,793 INFO L933 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:15,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 541 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:44:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-02-15 00:44:15,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1545. [2022-02-15 00:44:15,803 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) [2022-02-15 00:44:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2287 transitions. [2022-02-15 00:44:15,804 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2287 transitions. Word has length 254 [2022-02-15 00:44:15,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:15,805 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 2287 transitions. [2022-02-15 00:44:15,805 INFO L471 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) [2022-02-15 00:44:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2287 transitions. [2022-02-15 00:44:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-02-15 00:44:15,807 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:15,807 INFO L514 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] [2022-02-15 00:44:15,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 00:44:15,807 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:15,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:15,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1367824325, now seen corresponding path program 1 times [2022-02-15 00:44:15,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:15,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376398355] [2022-02-15 00:44:15,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:15,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:15,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-02-15 00:44:15,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:15,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376398355] [2022-02-15 00:44:15,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376398355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:15,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:15,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:15,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173738805] [2022-02-15 00:44:15,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:15,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:15,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:15,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:15,920 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) [2022-02-15 00:44:17,927 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 [] [2022-02-15 00:44:18,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:18,296 INFO L93 Difference]: Finished difference Result 1557 states and 2298 transitions. [2022-02-15 00:44:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:18,296 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 [2022-02-15 00:44:18,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:18,298 INFO L225 Difference]: With dead ends: 1557 [2022-02-15 00:44:18,298 INFO L226 Difference]: Without dead ends: 1557 [2022-02-15 00:44:18,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:18,299 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 40 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:18,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 535 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:44:18,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2022-02-15 00:44:18,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1545. [2022-02-15 00:44:18,312 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) [2022-02-15 00:44:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2285 transitions. [2022-02-15 00:44:18,313 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2285 transitions. Word has length 255 [2022-02-15 00:44:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:18,313 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 2285 transitions. [2022-02-15 00:44:18,314 INFO L471 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) [2022-02-15 00:44:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2285 transitions. [2022-02-15 00:44:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-02-15 00:44:18,316 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:18,316 INFO L514 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] [2022-02-15 00:44:18,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 00:44:18,316 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:18,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1074570741, now seen corresponding path program 1 times [2022-02-15 00:44:18,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:18,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126247700] [2022-02-15 00:44:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:18,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-15 00:44:18,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:18,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126247700] [2022-02-15 00:44:18,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126247700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:18,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:18,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:18,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990784009] [2022-02-15 00:44:18,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:18,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:18,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:18,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:18,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:18,462 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) [2022-02-15 00:44:20,469 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 [] [2022-02-15 00:44:20,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:20,985 INFO L93 Difference]: Finished difference Result 1813 states and 2657 transitions. [2022-02-15 00:44:20,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:20,985 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 [2022-02-15 00:44:20,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:20,988 INFO L225 Difference]: With dead ends: 1813 [2022-02-15 00:44:20,988 INFO L226 Difference]: Without dead ends: 1813 [2022-02-15 00:44:20,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:20,988 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 64 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:20,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 622 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 597 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:44:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-02-15 00:44:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1670. [2022-02-15 00:44:21,002 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) [2022-02-15 00:44:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2473 transitions. [2022-02-15 00:44:21,003 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2473 transitions. Word has length 257 [2022-02-15 00:44:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:21,003 INFO L470 AbstractCegarLoop]: Abstraction has 1670 states and 2473 transitions. [2022-02-15 00:44:21,003 INFO L471 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) [2022-02-15 00:44:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2473 transitions. [2022-02-15 00:44:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-02-15 00:44:21,006 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:21,006 INFO L514 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] [2022-02-15 00:44:21,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 00:44:21,007 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:21,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2011154316, now seen corresponding path program 1 times [2022-02-15 00:44:21,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:21,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093679179] [2022-02-15 00:44:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:21,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-02-15 00:44:21,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:21,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093679179] [2022-02-15 00:44:21,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093679179] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:21,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:21,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:44:21,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947523516] [2022-02-15 00:44:21,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:21,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:44:21,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:21,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:44:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:44:21,182 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) [2022-02-15 00:44:23,189 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 [] [2022-02-15 00:44:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:23,595 INFO L93 Difference]: Finished difference Result 2187 states and 3236 transitions. [2022-02-15 00:44:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:44:23,596 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 [2022-02-15 00:44:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:23,599 INFO L225 Difference]: With dead ends: 2187 [2022-02-15 00:44:23,599 INFO L226 Difference]: Without dead ends: 2187 [2022-02-15 00:44:23,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:44:23,600 INFO L933 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 [2022-02-15 00:44:23,600 INFO L934 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] [2022-02-15 00:44:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-02-15 00:44:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2187. [2022-02-15 00:44:23,616 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) [2022-02-15 00:44:23,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3236 transitions. [2022-02-15 00:44:23,618 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3236 transitions. Word has length 257 [2022-02-15 00:44:23,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:23,619 INFO L470 AbstractCegarLoop]: Abstraction has 2187 states and 3236 transitions. [2022-02-15 00:44:23,619 INFO L471 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) [2022-02-15 00:44:23,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3236 transitions. [2022-02-15 00:44:23,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-02-15 00:44:23,621 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:23,622 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-02-15 00:44:23,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 00:44:23,622 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2076861001, now seen corresponding path program 1 times [2022-02-15 00:44:23,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:23,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180711546] [2022-02-15 00:44:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-02-15 00:44:23,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:23,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180711546] [2022-02-15 00:44:23,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180711546] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:23,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:23,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 00:44:23,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110104212] [2022-02-15 00:44:23,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:23,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 00:44:23,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 00:44:23,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:44:23,930 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) [2022-02-15 00:44:25,939 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 [] [2022-02-15 00:44:27,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:27,215 INFO L93 Difference]: Finished difference Result 4189 states and 6238 transitions. [2022-02-15 00:44:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 00:44:27,215 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 [2022-02-15 00:44:27,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:27,222 INFO L225 Difference]: With dead ends: 4189 [2022-02-15 00:44:27,222 INFO L226 Difference]: Without dead ends: 4189 [2022-02-15 00:44:27,222 INFO L932 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 [2022-02-15 00:44:27,223 INFO L933 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 [2022-02-15 00:44:27,223 INFO L934 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] [2022-02-15 00:44:27,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4189 states. [2022-02-15 00:44:27,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4189 to 3938. [2022-02-15 00:44:27,255 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) [2022-02-15 00:44:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5914 transitions. [2022-02-15 00:44:27,260 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5914 transitions. Word has length 330 [2022-02-15 00:44:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:27,260 INFO L470 AbstractCegarLoop]: Abstraction has 3938 states and 5914 transitions. [2022-02-15 00:44:27,260 INFO L471 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) [2022-02-15 00:44:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5914 transitions. [2022-02-15 00:44:27,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-02-15 00:44:27,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:27,266 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-02-15 00:44:27,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 00:44:27,266 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 674782559, now seen corresponding path program 1 times [2022-02-15 00:44:27,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:27,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116578676] [2022-02-15 00:44:27,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-02-15 00:44:27,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:27,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116578676] [2022-02-15 00:44:27,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116578676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:27,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:27,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 00:44:27,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123992991] [2022-02-15 00:44:27,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:27,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 00:44:27,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:27,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 00:44:27,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:44:27,588 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) [2022-02-15 00:44:29,603 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 [] [2022-02-15 00:44:30,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:30,815 INFO L93 Difference]: Finished difference Result 6068 states and 8920 transitions. [2022-02-15 00:44:30,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 00:44:30,816 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 [2022-02-15 00:44:30,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:30,825 INFO L225 Difference]: With dead ends: 6068 [2022-02-15 00:44:30,825 INFO L226 Difference]: Without dead ends: 6068 [2022-02-15 00:44:30,825 INFO L932 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 [2022-02-15 00:44:30,827 INFO L933 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 [2022-02-15 00:44:30,827 INFO L934 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] [2022-02-15 00:44:30,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6068 states. [2022-02-15 00:44:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6068 to 3980. [2022-02-15 00:44:30,871 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) [2022-02-15 00:44:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5969 transitions. [2022-02-15 00:44:30,875 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5969 transitions. Word has length 331 [2022-02-15 00:44:30,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:30,875 INFO L470 AbstractCegarLoop]: Abstraction has 3980 states and 5969 transitions. [2022-02-15 00:44:30,876 INFO L471 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) [2022-02-15 00:44:30,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5969 transitions. [2022-02-15 00:44:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-02-15 00:44:30,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:30,881 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-02-15 00:44:30,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 00:44:30,881 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:30,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2119834520, now seen corresponding path program 1 times [2022-02-15 00:44:30,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:30,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110408473] [2022-02-15 00:44:30,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:30,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:31,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-15 00:44:31,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:31,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110408473] [2022-02-15 00:44:31,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110408473] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:31,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:31,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:31,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010066761] [2022-02-15 00:44:31,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:31,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:31,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:31,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:31,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:31,044 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) [2022-02-15 00:44:33,052 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 [] [2022-02-15 00:44:33,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:33,571 INFO L93 Difference]: Finished difference Result 4282 states and 6355 transitions. [2022-02-15 00:44:33,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:33,572 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 [2022-02-15 00:44:33,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:33,583 INFO L225 Difference]: With dead ends: 4282 [2022-02-15 00:44:33,583 INFO L226 Difference]: Without dead ends: 4266 [2022-02-15 00:44:33,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:33,584 INFO L933 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 [2022-02-15 00:44:33,584 INFO L934 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] [2022-02-15 00:44:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-02-15 00:44:33,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3968. [2022-02-15 00:44:33,616 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) [2022-02-15 00:44:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5949 transitions. [2022-02-15 00:44:33,621 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5949 transitions. Word has length 331 [2022-02-15 00:44:33,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:33,622 INFO L470 AbstractCegarLoop]: Abstraction has 3968 states and 5949 transitions. [2022-02-15 00:44:33,622 INFO L471 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) [2022-02-15 00:44:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5949 transitions. [2022-02-15 00:44:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-02-15 00:44:33,627 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:33,627 INFO L514 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] [2022-02-15 00:44:33,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 00:44:33,627 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:33,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:33,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1801634778, now seen corresponding path program 1 times [2022-02-15 00:44:33,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:33,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897941160] [2022-02-15 00:44:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:33,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:33,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 708 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-02-15 00:44:33,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:33,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897941160] [2022-02-15 00:44:33,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897941160] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:33,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:33,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:33,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767664557] [2022-02-15 00:44:33,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:33,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:33,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:33,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:33,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:33,773 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) [2022-02-15 00:44:35,783 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 [] [2022-02-15 00:44:36,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:36,281 INFO L93 Difference]: Finished difference Result 4250 states and 6311 transitions. [2022-02-15 00:44:36,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:36,281 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 [2022-02-15 00:44:36,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:36,287 INFO L225 Difference]: With dead ends: 4250 [2022-02-15 00:44:36,287 INFO L226 Difference]: Without dead ends: 4250 [2022-02-15 00:44:36,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:36,287 INFO L933 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 [2022-02-15 00:44:36,287 INFO L934 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] [2022-02-15 00:44:36,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2022-02-15 00:44:36,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3968. [2022-02-15 00:44:36,351 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) [2022-02-15 00:44:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5941 transitions. [2022-02-15 00:44:36,355 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5941 transitions. Word has length 347 [2022-02-15 00:44:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:36,356 INFO L470 AbstractCegarLoop]: Abstraction has 3968 states and 5941 transitions. [2022-02-15 00:44:36,356 INFO L471 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) [2022-02-15 00:44:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5941 transitions. [2022-02-15 00:44:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-02-15 00:44:36,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:36,361 INFO L514 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] [2022-02-15 00:44:36,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 00:44:36,362 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:36,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:36,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1466071603, now seen corresponding path program 1 times [2022-02-15 00:44:36,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:36,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948338643] [2022-02-15 00:44:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-02-15 00:44:36,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:36,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948338643] [2022-02-15 00:44:36,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948338643] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:36,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:36,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:36,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625364295] [2022-02-15 00:44:36,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:36,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:36,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:36,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:36,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:36,512 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) [2022-02-15 00:44:38,519 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 [] [2022-02-15 00:44:38,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:38,974 INFO L93 Difference]: Finished difference Result 4210 states and 6251 transitions. [2022-02-15 00:44:38,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:38,975 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 [2022-02-15 00:44:38,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:38,980 INFO L225 Difference]: With dead ends: 4210 [2022-02-15 00:44:38,980 INFO L226 Difference]: Without dead ends: 4210 [2022-02-15 00:44:38,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:38,980 INFO L933 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 [2022-02-15 00:44:38,981 INFO L934 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] [2022-02-15 00:44:38,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-02-15 00:44:39,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3968. [2022-02-15 00:44:39,039 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) [2022-02-15 00:44:39,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 5933 transitions. [2022-02-15 00:44:39,043 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 5933 transitions. Word has length 348 [2022-02-15 00:44:39,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:39,044 INFO L470 AbstractCegarLoop]: Abstraction has 3968 states and 5933 transitions. [2022-02-15 00:44:39,044 INFO L471 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) [2022-02-15 00:44:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 5933 transitions. [2022-02-15 00:44:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-02-15 00:44:39,049 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:39,049 INFO L514 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] [2022-02-15 00:44:39,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 00:44:39,049 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:39,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:39,050 INFO L85 PathProgramCache]: Analyzing trace with hash -951999064, now seen corresponding path program 1 times [2022-02-15 00:44:39,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:39,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537134422] [2022-02-15 00:44:39,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:39,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:39,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-02-15 00:44:39,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:39,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537134422] [2022-02-15 00:44:39,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537134422] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:39,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:39,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:44:39,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741865285] [2022-02-15 00:44:39,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:39,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:44:39,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:39,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:44:39,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:39,247 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) [2022-02-15 00:44:41,255 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 [] [2022-02-15 00:44:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:41,751 INFO L93 Difference]: Finished difference Result 4446 states and 6561 transitions. [2022-02-15 00:44:41,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:41,751 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 [2022-02-15 00:44:41,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:41,755 INFO L225 Difference]: With dead ends: 4446 [2022-02-15 00:44:41,756 INFO L226 Difference]: Without dead ends: 4446 [2022-02-15 00:44:41,756 INFO L932 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 [2022-02-15 00:44:41,757 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 253 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:41,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 330 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:44:41,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-02-15 00:44:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3910. [2022-02-15 00:44:41,788 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) [2022-02-15 00:44:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5846 transitions. [2022-02-15 00:44:41,793 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5846 transitions. Word has length 349 [2022-02-15 00:44:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:41,793 INFO L470 AbstractCegarLoop]: Abstraction has 3910 states and 5846 transitions. [2022-02-15 00:44:41,793 INFO L471 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) [2022-02-15 00:44:41,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5846 transitions. [2022-02-15 00:44:41,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-02-15 00:44:41,800 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:41,800 INFO L514 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] [2022-02-15 00:44:41,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 00:44:41,800 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:41,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:41,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2110568493, now seen corresponding path program 1 times [2022-02-15 00:44:41,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:41,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057746664] [2022-02-15 00:44:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:41,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:41,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-02-15 00:44:41,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:41,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057746664] [2022-02-15 00:44:41,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057746664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:41,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:41,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:41,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922676179] [2022-02-15 00:44:41,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:41,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:41,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:41,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:41,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:41,949 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) [2022-02-15 00:44:43,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:45,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:47,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:49,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:50,263 INFO L93 Difference]: Finished difference Result 4152 states and 6156 transitions. [2022-02-15 00:44:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:50,264 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 [2022-02-15 00:44:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:50,269 INFO L225 Difference]: With dead ends: 4152 [2022-02-15 00:44:50,269 INFO L226 Difference]: Without dead ends: 4152 [2022-02-15 00:44:50,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:50,269 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 56 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:50,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 592 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-02-15 00:44:50,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2022-02-15 00:44:50,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3910. [2022-02-15 00:44:50,338 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) [2022-02-15 00:44:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5838 transitions. [2022-02-15 00:44:50,342 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5838 transitions. Word has length 349 [2022-02-15 00:44:50,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:50,342 INFO L470 AbstractCegarLoop]: Abstraction has 3910 states and 5838 transitions. [2022-02-15 00:44:50,342 INFO L471 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) [2022-02-15 00:44:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5838 transitions. [2022-02-15 00:44:50,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-02-15 00:44:50,346 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:50,347 INFO L514 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] [2022-02-15 00:44:50,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 00:44:50,347 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:50,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:50,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1878023735, now seen corresponding path program 1 times [2022-02-15 00:44:50,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:50,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482296954] [2022-02-15 00:44:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:50,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-02-15 00:44:50,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:50,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482296954] [2022-02-15 00:44:50,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482296954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:50,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:50,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:50,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623685781] [2022-02-15 00:44:50,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:50,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:50,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:50,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:50,489 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) [2022-02-15 00:44:52,497 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 [] [2022-02-15 00:44:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:52,914 INFO L93 Difference]: Finished difference Result 4088 states and 6044 transitions. [2022-02-15 00:44:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:52,915 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 [2022-02-15 00:44:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:52,919 INFO L225 Difference]: With dead ends: 4088 [2022-02-15 00:44:52,919 INFO L226 Difference]: Without dead ends: 4088 [2022-02-15 00:44:52,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:44:52,920 INFO L933 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 [2022-02-15 00:44:52,920 INFO L934 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] [2022-02-15 00:44:52,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-02-15 00:44:52,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3910. [2022-02-15 00:44:52,978 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) [2022-02-15 00:44:52,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5830 transitions. [2022-02-15 00:44:52,983 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5830 transitions. Word has length 350 [2022-02-15 00:44:52,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:52,983 INFO L470 AbstractCegarLoop]: Abstraction has 3910 states and 5830 transitions. [2022-02-15 00:44:52,983 INFO L471 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) [2022-02-15 00:44:52,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5830 transitions. [2022-02-15 00:44:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-02-15 00:44:52,988 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:52,988 INFO L514 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] [2022-02-15 00:44:52,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 00:44:52,988 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:52,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:52,989 INFO L85 PathProgramCache]: Analyzing trace with hash 512398985, now seen corresponding path program 1 times [2022-02-15 00:44:52,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:52,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158991750] [2022-02-15 00:44:52,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:52,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 710 proven. 82 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-02-15 00:44:53,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:53,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158991750] [2022-02-15 00:44:53,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158991750] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:44:53,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565027043] [2022-02-15 00:44:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:53,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:44:53,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:44:53,156 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) [2022-02-15 00:44:53,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:44:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:54,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-15 00:44:54,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:44:54,514 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:44:54,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:44:54,574 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:44:54,574 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:44:54,657 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-15 00:44:54,810 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:44:54,811 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:44:54,903 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:44:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 682 proven. 126 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-02-15 00:44:55,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:44:55,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-02-15 00:44:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-02-15 00:44:55,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565027043] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:44:55,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:44:55,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-02-15 00:44:55,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156438238] [2022-02-15 00:44:55,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:55,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:44:55,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:55,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:44:55,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-02-15 00:44:55,551 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) [2022-02-15 00:44:57,559 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 [] [2022-02-15 00:44:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:57,838 INFO L93 Difference]: Finished difference Result 4716 states and 6951 transitions. [2022-02-15 00:44:57,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:44:57,838 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 [2022-02-15 00:44:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:57,844 INFO L225 Difference]: With dead ends: 4716 [2022-02-15 00:44:57,845 INFO L226 Difference]: Without dead ends: 4716 [2022-02-15 00:44:57,845 INFO L932 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 [2022-02-15 00:44:57,845 INFO L933 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 [2022-02-15 00:44:57,845 INFO L934 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] [2022-02-15 00:44:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2022-02-15 00:44:57,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4234. [2022-02-15 00:44:57,914 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) [2022-02-15 00:44:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6311 transitions. [2022-02-15 00:44:57,917 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6311 transitions. Word has length 352 [2022-02-15 00:44:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:57,918 INFO L470 AbstractCegarLoop]: Abstraction has 4234 states and 6311 transitions. [2022-02-15 00:44:57,918 INFO L471 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) [2022-02-15 00:44:57,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6311 transitions. [2022-02-15 00:44:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-02-15 00:44:57,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:57,936 INFO L514 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] [2022-02-15 00:44:57,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-15 00:44:58,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-02-15 00:44:58,137 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:58,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:58,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1647130387, now seen corresponding path program 1 times [2022-02-15 00:44:58,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:58,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489423806] [2022-02-15 00:44:58,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:58,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-02-15 00:44:58,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:58,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489423806] [2022-02-15 00:44:58,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489423806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:58,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:58,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:58,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796994778] [2022-02-15 00:44:58,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:58,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:58,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:58,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:58,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:58,288 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) [2022-02-15 00:45:00,304 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 [] [2022-02-15 00:45:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:00,668 INFO L93 Difference]: Finished difference Result 4380 states and 6475 transitions. [2022-02-15 00:45:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:00,668 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 [2022-02-15 00:45:00,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:00,673 INFO L225 Difference]: With dead ends: 4380 [2022-02-15 00:45:00,673 INFO L226 Difference]: Without dead ends: 4380 [2022-02-15 00:45:00,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:00,674 INFO L933 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 [2022-02-15 00:45:00,674 INFO L934 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] [2022-02-15 00:45:00,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-02-15 00:45:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4234. [2022-02-15 00:45:00,701 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) [2022-02-15 00:45:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6303 transitions. [2022-02-15 00:45:00,705 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6303 transitions. Word has length 353 [2022-02-15 00:45:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:00,705 INFO L470 AbstractCegarLoop]: Abstraction has 4234 states and 6303 transitions. [2022-02-15 00:45:00,705 INFO L471 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) [2022-02-15 00:45:00,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6303 transitions. [2022-02-15 00:45:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-02-15 00:45:00,733 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:00,733 INFO L514 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] [2022-02-15 00:45:00,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 00:45:00,734 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:00,734 INFO L85 PathProgramCache]: Analyzing trace with hash -947640423, now seen corresponding path program 1 times [2022-02-15 00:45:00,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:00,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562850573] [2022-02-15 00:45:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:00,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:00,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-02-15 00:45:00,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:00,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562850573] [2022-02-15 00:45:00,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562850573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:00,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:00,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:00,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511899315] [2022-02-15 00:45:00,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:00,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:00,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:00,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:00,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:00,877 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) [2022-02-15 00:45:02,885 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 [] [2022-02-15 00:45:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:03,276 INFO L93 Difference]: Finished difference Result 4596 states and 6801 transitions. [2022-02-15 00:45:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:03,276 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 [2022-02-15 00:45:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:03,281 INFO L225 Difference]: With dead ends: 4596 [2022-02-15 00:45:03,281 INFO L226 Difference]: Without dead ends: 4596 [2022-02-15 00:45:03,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:03,281 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:03,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 578 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:45:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-02-15 00:45:03,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4442. [2022-02-15 00:45:03,311 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) [2022-02-15 00:45:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 6607 transitions. [2022-02-15 00:45:03,315 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 6607 transitions. Word has length 353 [2022-02-15 00:45:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:03,316 INFO L470 AbstractCegarLoop]: Abstraction has 4442 states and 6607 transitions. [2022-02-15 00:45:03,316 INFO L471 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) [2022-02-15 00:45:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 6607 transitions. [2022-02-15 00:45:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-02-15 00:45:03,320 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:03,320 INFO L514 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] [2022-02-15 00:45:03,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 00:45:03,320 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1606404644, now seen corresponding path program 1 times [2022-02-15 00:45:03,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:03,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925081738] [2022-02-15 00:45:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-02-15 00:45:03,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:03,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925081738] [2022-02-15 00:45:03,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925081738] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:03,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:03,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:03,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223359080] [2022-02-15 00:45:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:03,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:03,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:03,491 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) [2022-02-15 00:45:05,500 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 [] [2022-02-15 00:45:05,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:05,962 INFO L93 Difference]: Finished difference Result 4884 states and 7241 transitions. [2022-02-15 00:45:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:05,964 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 [2022-02-15 00:45:05,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:05,968 INFO L225 Difference]: With dead ends: 4884 [2022-02-15 00:45:05,968 INFO L226 Difference]: Without dead ends: 4884 [2022-02-15 00:45:05,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:05,969 INFO L933 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 [2022-02-15 00:45:05,969 INFO L934 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] [2022-02-15 00:45:05,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2022-02-15 00:45:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4666. [2022-02-15 00:45:05,999 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) [2022-02-15 00:45:06,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6943 transitions. [2022-02-15 00:45:06,004 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6943 transitions. Word has length 359 [2022-02-15 00:45:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:06,004 INFO L470 AbstractCegarLoop]: Abstraction has 4666 states and 6943 transitions. [2022-02-15 00:45:06,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6943 transitions. [2022-02-15 00:45:06,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-02-15 00:45:06,009 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:06,009 INFO L514 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] [2022-02-15 00:45:06,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 00:45:06,010 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:06,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:06,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1596942315, now seen corresponding path program 1 times [2022-02-15 00:45:06,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:06,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589481106] [2022-02-15 00:45:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:06,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-02-15 00:45:06,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:06,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589481106] [2022-02-15 00:45:06,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589481106] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:06,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:06,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:45:06,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332304384] [2022-02-15 00:45:06,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:06,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:45:06,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:06,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:45:06,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:45:06,441 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) [2022-02-15 00:45:08,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:10,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:12,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:14,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:16,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:18,372 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 [] [2022-02-15 00:45:18,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:18,787 INFO L93 Difference]: Finished difference Result 4674 states and 6953 transitions. [2022-02-15 00:45:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:45:18,788 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 [2022-02-15 00:45:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:18,792 INFO L225 Difference]: With dead ends: 4674 [2022-02-15 00:45:18,792 INFO L226 Difference]: Without dead ends: 4666 [2022-02-15 00:45:18,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 00:45:18,794 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:18,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 432 Invalid, 5 Unknown, 0 Unchecked, 12.3s Time] [2022-02-15 00:45:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2022-02-15 00:45:18,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4666. [2022-02-15 00:45:18,825 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) [2022-02-15 00:45:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4666 states to 4666 states and 6942 transitions. [2022-02-15 00:45:18,829 INFO L78 Accepts]: Start accepts. Automaton has 4666 states and 6942 transitions. Word has length 360 [2022-02-15 00:45:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:18,830 INFO L470 AbstractCegarLoop]: Abstraction has 4666 states and 6942 transitions. [2022-02-15 00:45:18,830 INFO L471 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) [2022-02-15 00:45:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4666 states and 6942 transitions. [2022-02-15 00:45:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-02-15 00:45:18,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:18,834 INFO L514 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] [2022-02-15 00:45:18,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 00:45:18,835 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:18,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash -870525942, now seen corresponding path program 1 times [2022-02-15 00:45:18,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:18,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104722366] [2022-02-15 00:45:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:18,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:19,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 576 proven. 92 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-02-15 00:45:19,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:19,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104722366] [2022-02-15 00:45:19,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104722366] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:45:19,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892230753] [2022-02-15 00:45:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:19,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:45:19,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:45:19,783 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) [2022-02-15 00:45:19,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:45:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:21,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 131 conjunts are in the unsatisfiable core [2022-02-15 00:45:21,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:45:21,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,164 INFO L387 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 [2022-02-15 00:45:21,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,356 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:21,357 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:45:21,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,404 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:21,405 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-02-15 00:45:21,409 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-15 00:45:21,415 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-15 00:45:21,616 INFO L353 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-02-15 00:45:21,617 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-02-15 00:45:21,636 INFO L353 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-02-15 00:45:21,637 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-02-15 00:45:21,655 INFO L353 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-02-15 00:45:21,655 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2022-02-15 00:45:21,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,774 INFO L387 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 [2022-02-15 00:45:21,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,780 INFO L387 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 [2022-02-15 00:45:21,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:21,785 INFO L387 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 [2022-02-15 00:45:22,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,231 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-02-15 00:45:22,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,236 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-02-15 00:45:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,241 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-02-15 00:45:22,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,361 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-15 00:45:22,361 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-02-15 00:45:22,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,398 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:45:22,398 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-02-15 00:45:22,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,438 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:45:22,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 52 [2022-02-15 00:45:22,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,619 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 189 [2022-02-15 00:45:22,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,624 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 189 [2022-02-15 00:45:22,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:22,648 INFO L353 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-02-15 00:45:22,649 INFO L387 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 217 treesize of output 235 [2022-02-15 00:45:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 230 [2022-02-15 00:45:24,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:24,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:25,007 INFO L353 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-02-15 00:45:25,007 INFO L387 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 266 treesize of output 264 [2022-02-15 00:45:25,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:25,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:25,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:25,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 246 [2022-02-15 00:45:27,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:27,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:27,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:27,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:27,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:27,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:27,789 INFO L353 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-02-15 00:45:27,790 INFO L387 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 273 treesize of output 261 [2022-02-15 00:45:28,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,390 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-02-15 00:45:28,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,397 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:28,397 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-02-15 00:45:28,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-02-15 00:45:28,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:28,438 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:28,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-02-15 00:45:29,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,689 INFO L353 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2022-02-15 00:45:29,689 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 144 [2022-02-15 00:45:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,708 INFO L353 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-02-15 00:45:29,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-02-15 00:45:29,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,806 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 125 [2022-02-15 00:45:29,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:29,815 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:29,815 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 113 [2022-02-15 00:45:31,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,202 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-02-15 00:45:31,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,208 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:31,208 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-02-15 00:45:31,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,277 INFO L353 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-02-15 00:45:31,278 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 179 [2022-02-15 00:45:31,283 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-02-15 00:45:31,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,310 INFO L353 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-02-15 00:45:31,310 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 157 [2022-02-15 00:45:31,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,466 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 165 [2022-02-15 00:45:31,485 INFO L353 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-02-15 00:45:31,485 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-02-15 00:45:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:31,493 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:31,493 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 153 [2022-02-15 00:45:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:33,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:33,020 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 180 [2022-02-15 00:45:33,036 INFO L353 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-02-15 00:45:33,036 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 37 [2022-02-15 00:45:33,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:33,042 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:33,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 147 [2022-02-15 00:45:33,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:45:33,602 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:45:33,603 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 77 [2022-02-15 00:45:37,617 INFO L353 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-02-15 00:45:37,617 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2022-02-15 00:45:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 221 proven. 883 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-15 00:45:37,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:45:37,907 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1562 treesize of output 1394