/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.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:19:39,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:19:39,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:19:39,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:19:39,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:19:39,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:19:39,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:19:39,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:19:39,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:19:39,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:19:39,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:19:39,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:19:39,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:19:39,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:19:39,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:19:39,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:19:39,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:19:39,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:19:39,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:19:39,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:19:39,965 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:19:39,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:19:39,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:19:39,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:19:39,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:19:39,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 04:19:39,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 04:19:39,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 04:19:39,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 04:19:39,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 04:19:39,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-05 04:19:39,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:19:39,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:19:39,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:19:39,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:19:39,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:19:39,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:19:39,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:19:39,992 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:19:39,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:19:39,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:19:39,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:19:39,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:19:39,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:19:39,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:19:39,994 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:19:39,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:19:39,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:19:39,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:19:39,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:19:39,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:19:39,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:19:39,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:19:39,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:19:39,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:19:39,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:19:39,996 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:19:39,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:19:40,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:19:40,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:19:40,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:19:40,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:19:40,229 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:19:40,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-04-05 04:19:40,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb048bff/e5662ced1b5643d8a27d0d469fdaa2b4/FLAG17067d6ba [2022-04-05 04:19:40,816 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:19:40,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-04-05 04:19:40,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb048bff/e5662ced1b5643d8a27d0d469fdaa2b4/FLAG17067d6ba [2022-04-05 04:19:41,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb048bff/e5662ced1b5643d8a27d0d469fdaa2b4 [2022-04-05 04:19:41,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:19:41,284 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:19:41,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:19:41,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:19:41,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:19:41,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb65d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41, skipping insertion in model container [2022-04-05 04:19:41,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:19:41,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:19:41,679 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.06.i.cil-1.c[78520,78533] [2022-04-05 04:19:41,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:19:41,714 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:19:41,829 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.06.i.cil-1.c[78520,78533] [2022-04-05 04:19:41,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:19:41,848 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:19:41,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41 WrapperNode [2022-04-05 04:19:41,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:19:41,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:19:41,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:19:41,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:19:41,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:41,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:19:41,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:19:41,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:19:41,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:19:41,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (1/1) ... [2022-04-05 04:19:42,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:19:42,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:19:42,029 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) [2022-04-05 04:19:42,053 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 [2022-04-05 04:19:42,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:19:42,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:19:42,069 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:19:42,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 04:19:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 04:19:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:19:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 04:19:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:19:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:19:42,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:19:42,071 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:19:42,071 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:19:42,071 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:19:42,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:19:42,072 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:19:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:19:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:19:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:19:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:19:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:19:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 04:19:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:19:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:19:42,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:19:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:19:42,256 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:19:42,257 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:19:42,961 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:19:43,455 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 04:19:43,456 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 04:19:43,467 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:19:43,474 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:19:43,474 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:19:43,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:19:43 BoogieIcfgContainer [2022-04-05 04:19:43,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:19:43,476 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:19:43,476 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:19:43,477 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:19:43,480 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:19:43" (1/1) ... [2022-04-05 04:19:43,482 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:19:43,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:19:43 BasicIcfg [2022-04-05 04:19:43,565 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:19:43,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:19:43,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:19:43,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:19:43,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:19:41" (1/4) ... [2022-04-05 04:19:43,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6906e835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:19:43, skipping insertion in model container [2022-04-05 04:19:43,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:19:41" (2/4) ... [2022-04-05 04:19:43,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6906e835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:19:43, skipping insertion in model container [2022-04-05 04:19:43,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:19:43" (3/4) ... [2022-04-05 04:19:43,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6906e835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:19:43, skipping insertion in model container [2022-04-05 04:19:43,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:19:43" (4/4) ... [2022-04-05 04:19:43,574 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.cJordan [2022-04-05 04:19:43,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:19:43,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:19:43,624 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:19:43,629 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 04:19:43,629 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:19:43,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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) [2022-04-05 04:19:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 04:19:43,672 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:43,672 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:19:43,673 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:43,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:43,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1558367979, now seen corresponding path program 1 times [2022-04-05 04:19:43,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:43,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874944795] [2022-04-05 04:19:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:43,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:19:44,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:44,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874944795] [2022-04-05 04:19:44,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874944795] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:44,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:44,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:44,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164245638] [2022-04-05 04:19:44,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:44,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:44,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:44,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:44,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:44,288 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:45,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:47,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:47,517 INFO L93 Difference]: Finished difference Result 307 states and 517 transitions. [2022-04-05 04:19:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:47,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-05 04:19:47,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:47,534 INFO L225 Difference]: With dead ends: 307 [2022-04-05 04:19:47,535 INFO L226 Difference]: Without dead ends: 281 [2022-04-05 04:19:47,536 INFO L912 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 [2022-04-05 04:19:47,542 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 172 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:47,547 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 529 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-05 04:19:47,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-04-05 04:19:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 193. [2022-04-05 04:19:47,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.627659574468085) internal successors, (306), 188 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 310 transitions. [2022-04-05 04:19:47,617 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 310 transitions. Word has length 51 [2022-04-05 04:19:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:47,618 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 310 transitions. [2022-04-05 04:19:47,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:47,619 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 310 transitions. [2022-04-05 04:19:47,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-05 04:19:47,626 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:47,626 INFO L499 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] [2022-04-05 04:19:47,626 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:19:47,627 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1445274745, now seen corresponding path program 1 times [2022-04-05 04:19:47,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:47,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37229953] [2022-04-05 04:19:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:47,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:19:47,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:47,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37229953] [2022-04-05 04:19:47,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37229953] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:47,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:47,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163701627] [2022-04-05 04:19:47,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:47,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:47,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:47,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:47,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:47,881 INFO L87 Difference]: Start difference. First operand 193 states and 310 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:48,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:51,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:52,786 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 [] [2022-04-05 04:19:53,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:53,495 INFO L93 Difference]: Finished difference Result 221 states and 350 transitions. [2022-04-05 04:19:53,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:53,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-04-05 04:19:53,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:53,498 INFO L225 Difference]: With dead ends: 221 [2022-04-05 04:19:53,498 INFO L226 Difference]: Without dead ends: 221 [2022-04-05 04:19:53,498 INFO L912 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 [2022-04-05 04:19:53,499 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 22 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:53,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 04:19:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-04-05 04:19:53,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-04-05 04:19:53,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6331658291457287) internal successors, (325), 199 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 329 transitions. [2022-04-05 04:19:53,507 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 329 transitions. Word has length 52 [2022-04-05 04:19:53,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:53,508 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 329 transitions. [2022-04-05 04:19:53,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 329 transitions. [2022-04-05 04:19:53,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:19:53,509 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:53,509 INFO L499 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] [2022-04-05 04:19:53,510 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:19:53,510 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:53,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash 326764794, now seen corresponding path program 1 times [2022-04-05 04:19:53,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:53,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686495624] [2022-04-05 04:19:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:53,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:53,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:19:53,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:53,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686495624] [2022-04-05 04:19:53,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686495624] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:53,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:53,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:53,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696756678] [2022-04-05 04:19:53,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:53,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:53,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:53,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:53,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:53,731 INFO L87 Difference]: Start difference. First operand 204 states and 329 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:55,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:57,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:59,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:19:59,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:19:59,580 INFO L93 Difference]: Finished difference Result 221 states and 349 transitions. [2022-04-05 04:19:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:19:59,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 04:19:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:19:59,582 INFO L225 Difference]: With dead ends: 221 [2022-04-05 04:19:59,582 INFO L226 Difference]: Without dead ends: 221 [2022-04-05 04:19:59,583 INFO L912 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 [2022-04-05 04:19:59,584 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 24 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:19:59,584 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 549 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 04:19:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-04-05 04:19:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-04-05 04:19:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6281407035175879) internal successors, (324), 199 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 328 transitions. [2022-04-05 04:19:59,602 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 328 transitions. Word has length 65 [2022-04-05 04:19:59,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:19:59,603 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 328 transitions. [2022-04-05 04:19:59,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:19:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 328 transitions. [2022-04-05 04:19:59,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:19:59,607 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:19:59,608 INFO L499 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] [2022-04-05 04:19:59,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:19:59,608 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:19:59,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:19:59,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1636949139, now seen corresponding path program 1 times [2022-04-05 04:19:59,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:19:59,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864732665] [2022-04-05 04:19:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:19:59,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:19:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:59,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:19:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:19:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:19:59,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:19:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864732665] [2022-04-05 04:19:59,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864732665] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:19:59,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:19:59,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:19:59,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203394463] [2022-04-05 04:19:59,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:19:59,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:19:59,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:19:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:19:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:19:59,760 INFO L87 Difference]: Start difference. First operand 204 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:02,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:04,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:04,790 INFO L93 Difference]: Finished difference Result 220 states and 347 transitions. [2022-04-05 04:20:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 04:20:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:04,791 INFO L225 Difference]: With dead ends: 220 [2022-04-05 04:20:04,792 INFO L226 Difference]: Without dead ends: 220 [2022-04-05 04:20:04,792 INFO L912 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 [2022-04-05 04:20:04,793 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 28 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:04,798 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 04:20:04,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-04-05 04:20:04,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 204. [2022-04-05 04:20:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6231155778894473) internal successors, (323), 199 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 327 transitions. [2022-04-05 04:20:04,805 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 327 transitions. Word has length 66 [2022-04-05 04:20:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:04,806 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 327 transitions. [2022-04-05 04:20:04,806 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 327 transitions. [2022-04-05 04:20:04,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:20:04,807 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:04,807 INFO L499 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] [2022-04-05 04:20:04,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:20:04,808 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:04,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:04,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1388649651, now seen corresponding path program 1 times [2022-04-05 04:20:04,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:04,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117343927] [2022-04-05 04:20:04,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:04,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:04,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:20:04,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:04,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117343927] [2022-04-05 04:20:04,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117343927] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:04,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:04,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:04,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205460232] [2022-04-05 04:20:04,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:04,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:04,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:04,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:04,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:04,949 INFO L87 Difference]: Start difference. First operand 204 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:06,963 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 [] [2022-04-05 04:20:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:07,648 INFO L93 Difference]: Finished difference Result 331 states and 526 transitions. [2022-04-05 04:20:07,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:07,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 04:20:07,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:07,651 INFO L225 Difference]: With dead ends: 331 [2022-04-05 04:20:07,651 INFO L226 Difference]: Without dead ends: 331 [2022-04-05 04:20:07,651 INFO L912 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 [2022-04-05 04:20:07,652 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 167 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:07,652 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 410 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-04-05 04:20:07,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-04-05 04:20:07,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 216. [2022-04-05 04:20:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 211 states have internal predecessors, (339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 343 transitions. [2022-04-05 04:20:07,687 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 343 transitions. Word has length 66 [2022-04-05 04:20:07,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:07,687 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 343 transitions. [2022-04-05 04:20:07,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:07,687 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 343 transitions. [2022-04-05 04:20:07,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:20:07,688 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:07,688 INFO L499 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] [2022-04-05 04:20:07,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:20:07,689 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:07,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:07,689 INFO L85 PathProgramCache]: Analyzing trace with hash -931919629, now seen corresponding path program 1 times [2022-04-05 04:20:07,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:07,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550003183] [2022-04-05 04:20:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:07,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:20:07,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550003183] [2022-04-05 04:20:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550003183] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:07,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:07,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543018655] [2022-04-05 04:20:07,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:07,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:07,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:07,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:07,800 INFO L87 Difference]: Start difference. First operand 216 states and 343 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:09,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:11,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:12,584 INFO L93 Difference]: Finished difference Result 331 states and 523 transitions. [2022-04-05 04:20:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:12,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 04:20:12,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:12,587 INFO L225 Difference]: With dead ends: 331 [2022-04-05 04:20:12,587 INFO L226 Difference]: Without dead ends: 331 [2022-04-05 04:20:12,587 INFO L912 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 [2022-04-05 04:20:12,588 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 161 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:12,588 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 410 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-05 04:20:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-04-05 04:20:12,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 221. [2022-04-05 04:20:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.6018518518518519) internal successors, (346), 216 states have internal predecessors, (346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 350 transitions. [2022-04-05 04:20:12,595 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 350 transitions. Word has length 66 [2022-04-05 04:20:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:12,595 INFO L478 AbstractCegarLoop]: Abstraction has 221 states and 350 transitions. [2022-04-05 04:20:12,595 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 350 transitions. [2022-04-05 04:20:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:20:12,596 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:12,596 INFO L499 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] [2022-04-05 04:20:12,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:20:12,597 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -707330029, now seen corresponding path program 1 times [2022-04-05 04:20:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64706194] [2022-04-05 04:20:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:20:12,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:12,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64706194] [2022-04-05 04:20:12,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64706194] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:12,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:12,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:12,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8515256] [2022-04-05 04:20:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:12,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:12,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:12,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:12,750 INFO L87 Difference]: Start difference. First operand 221 states and 350 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:14,760 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 [] [2022-04-05 04:20:15,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:15,275 INFO L93 Difference]: Finished difference Result 330 states and 519 transitions. [2022-04-05 04:20:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:15,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 04:20:15,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:15,277 INFO L225 Difference]: With dead ends: 330 [2022-04-05 04:20:15,277 INFO L226 Difference]: Without dead ends: 330 [2022-04-05 04:20:15,278 INFO L912 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 [2022-04-05 04:20:15,278 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 159 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:15,279 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 412 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:20:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-04-05 04:20:15,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-04-05 04:20:15,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5898617511520738) internal successors, (345), 217 states have internal predecessors, (345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 349 transitions. [2022-04-05 04:20:15,292 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 349 transitions. Word has length 66 [2022-04-05 04:20:15,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:15,295 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 349 transitions. [2022-04-05 04:20:15,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:15,295 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 349 transitions. [2022-04-05 04:20:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:20:15,296 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:15,296 INFO L499 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] [2022-04-05 04:20:15,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:20:15,297 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:15,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:15,297 INFO L85 PathProgramCache]: Analyzing trace with hash 175120026, now seen corresponding path program 1 times [2022-04-05 04:20:15,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:15,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747547513] [2022-04-05 04:20:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:15,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:20:15,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:15,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747547513] [2022-04-05 04:20:15,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747547513] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:15,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:15,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:15,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777198074] [2022-04-05 04:20:15,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:15,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:15,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:15,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:15,441 INFO L87 Difference]: Start difference. First operand 222 states and 349 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) [2022-04-05 04:20:17,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:19,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:21,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:23,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:23,683 INFO L93 Difference]: Finished difference Result 330 states and 516 transitions. [2022-04-05 04:20:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:23,684 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 [2022-04-05 04:20:23,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:23,685 INFO L225 Difference]: With dead ends: 330 [2022-04-05 04:20:23,686 INFO L226 Difference]: Without dead ends: 330 [2022-04-05 04:20:23,686 INFO L912 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 [2022-04-05 04:20:23,686 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 163 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:23,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 412 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 04:20:23,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-04-05 04:20:23,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-04-05 04:20:23,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.576036866359447) internal successors, (342), 217 states have internal predecessors, (342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 346 transitions. [2022-04-05 04:20:23,693 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 346 transitions. Word has length 67 [2022-04-05 04:20:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:23,693 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 346 transitions. [2022-04-05 04:20:23,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 346 transitions. [2022-04-05 04:20:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:20:23,694 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:23,694 INFO L499 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] [2022-04-05 04:20:23,694 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:20:23,694 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:23,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:23,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1179369879, now seen corresponding path program 1 times [2022-04-05 04:20:23,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:23,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644611147] [2022-04-05 04:20:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:23,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:20:23,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:23,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644611147] [2022-04-05 04:20:23,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644611147] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:23,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:23,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:23,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977528185] [2022-04-05 04:20:23,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:23,819 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:23,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:23,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:23,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:23,820 INFO L87 Difference]: Start difference. First operand 222 states and 346 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) [2022-04-05 04:20:25,830 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 [] [2022-04-05 04:20:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:26,248 INFO L93 Difference]: Finished difference Result 235 states and 362 transitions. [2022-04-05 04:20:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:26,249 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 [2022-04-05 04:20:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:26,250 INFO L225 Difference]: With dead ends: 235 [2022-04-05 04:20:26,250 INFO L226 Difference]: Without dead ends: 235 [2022-04-05 04:20:26,250 INFO L912 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 [2022-04-05 04:20:26,251 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 20 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:26,251 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 557 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:20:26,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-04-05 04:20:26,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 222. [2022-04-05 04:20:26,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5714285714285714) internal successors, (341), 217 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 345 transitions. [2022-04-05 04:20:26,256 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 345 transitions. Word has length 68 [2022-04-05 04:20:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:26,257 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 345 transitions. [2022-04-05 04:20:26,257 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 345 transitions. [2022-04-05 04:20:26,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-05 04:20:26,258 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:26,258 INFO L499 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] [2022-04-05 04:20:26,258 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:20:26,258 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:26,259 INFO L85 PathProgramCache]: Analyzing trace with hash -454362324, now seen corresponding path program 1 times [2022-04-05 04:20:26,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:26,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305064003] [2022-04-05 04:20:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:26,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:26,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:20:26,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:26,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305064003] [2022-04-05 04:20:26,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305064003] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:26,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:26,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:26,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168775528] [2022-04-05 04:20:26,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:26,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:26,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:26,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:26,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:26,382 INFO L87 Difference]: Start difference. First operand 222 states and 345 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) [2022-04-05 04:20:28,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:30,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:31,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:31,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:31,949 INFO L93 Difference]: Finished difference Result 330 states and 514 transitions. [2022-04-05 04:20:31,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:31,949 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 [2022-04-05 04:20:31,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:31,952 INFO L225 Difference]: With dead ends: 330 [2022-04-05 04:20:31,952 INFO L226 Difference]: Without dead ends: 330 [2022-04-05 04:20:31,952 INFO L912 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 [2022-04-05 04:20:31,953 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 136 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:31,953 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 438 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 04:20:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-04-05 04:20:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2022-04-05 04:20:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.606694560669456) internal successors, (384), 239 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 388 transitions. [2022-04-05 04:20:31,959 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 388 transitions. Word has length 69 [2022-04-05 04:20:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:31,959 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 388 transitions. [2022-04-05 04:20:31,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 388 transitions. [2022-04-05 04:20:31,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-05 04:20:31,960 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:31,961 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:20:31,961 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:20:31,961 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:31,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:31,961 INFO L85 PathProgramCache]: Analyzing trace with hash -851471807, now seen corresponding path program 1 times [2022-04-05 04:20:31,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:31,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534447481] [2022-04-05 04:20:31,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:31,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-05 04:20:32,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:32,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534447481] [2022-04-05 04:20:32,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534447481] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:32,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:32,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:32,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967579050] [2022-04-05 04:20:32,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:32,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:32,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:32,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:32,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:32,130 INFO L87 Difference]: Start difference. First operand 244 states and 388 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:33,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:35,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:37,081 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 [] [2022-04-05 04:20:37,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:37,485 INFO L93 Difference]: Finished difference Result 286 states and 448 transitions. [2022-04-05 04:20:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:37,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-04-05 04:20:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:37,486 INFO L225 Difference]: With dead ends: 286 [2022-04-05 04:20:37,486 INFO L226 Difference]: Without dead ends: 286 [2022-04-05 04:20:37,487 INFO L912 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 [2022-04-05 04:20:37,487 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 30 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:37,488 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 599 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 433 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 04:20:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-04-05 04:20:37,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 266. [2022-04-05 04:20:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.6015325670498084) internal successors, (418), 261 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:37,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 422 transitions. [2022-04-05 04:20:37,493 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 422 transitions. Word has length 97 [2022-04-05 04:20:37,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:37,494 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 422 transitions. [2022-04-05 04:20:37,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:37,494 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 422 transitions. [2022-04-05 04:20:37,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-05 04:20:37,495 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:37,495 INFO L499 BasicCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:20:37,495 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:20:37,495 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash -714043438, now seen corresponding path program 1 times [2022-04-05 04:20:37,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:37,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743356293] [2022-04-05 04:20:37,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:37,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:37,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:20:37,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:37,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743356293] [2022-04-05 04:20:37,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743356293] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:37,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:37,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:37,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925223862] [2022-04-05 04:20:37,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:37,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:37,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:37,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:37,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:37,600 INFO L87 Difference]: Start difference. First operand 266 states and 422 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) [2022-04-05 04:20:40,440 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 [] [2022-04-05 04:20:43,018 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 [] [2022-04-05 04:20:43,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:43,497 INFO L93 Difference]: Finished difference Result 352 states and 544 transitions. [2022-04-05 04:20:43,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:43,497 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 97 [2022-04-05 04:20:43,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:43,499 INFO L225 Difference]: With dead ends: 352 [2022-04-05 04:20:43,499 INFO L226 Difference]: Without dead ends: 352 [2022-04-05 04:20:43,499 INFO L912 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 [2022-04-05 04:20:43,500 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 159 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:43,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 438 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 04:20:43,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-04-05 04:20:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 266. [2022-04-05 04:20:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5862068965517242) internal successors, (414), 261 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:43,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 418 transitions. [2022-04-05 04:20:43,513 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 418 transitions. Word has length 97 [2022-04-05 04:20:43,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:43,514 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 418 transitions. [2022-04-05 04:20:43,514 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:43,514 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 418 transitions. [2022-04-05 04:20:43,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 04:20:43,515 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:43,516 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:20:43,516 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:20:43,516 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash -986051140, now seen corresponding path program 1 times [2022-04-05 04:20:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:43,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125158144] [2022-04-05 04:20:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:43,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:43,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:20:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:43,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125158144] [2022-04-05 04:20:43,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125158144] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:43,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:43,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450576468] [2022-04-05 04:20:43,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:43,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:43,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:43,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:43,635 INFO L87 Difference]: Start difference. First operand 266 states and 418 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) [2022-04-05 04:20:45,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:47,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:47,658 INFO L93 Difference]: Finished difference Result 390 states and 607 transitions. [2022-04-05 04:20:47,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:47,658 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 110 [2022-04-05 04:20:47,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:47,660 INFO L225 Difference]: With dead ends: 390 [2022-04-05 04:20:47,660 INFO L226 Difference]: Without dead ends: 390 [2022-04-05 04:20:47,660 INFO L912 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 [2022-04-05 04:20:47,660 INFO L913 BasicCegarLoop]: 278 mSDtfsCounter, 158 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:47,661 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 686 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:20:47,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-04-05 04:20:47,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 282. [2022-04-05 04:20:47,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5703971119133573) internal successors, (435), 277 states have internal predecessors, (435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:47,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 439 transitions. [2022-04-05 04:20:47,668 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 439 transitions. Word has length 110 [2022-04-05 04:20:47,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:47,668 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 439 transitions. [2022-04-05 04:20:47,668 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 439 transitions. [2022-04-05 04:20:47,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-05 04:20:47,669 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:47,669 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:20:47,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:20:47,670 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:47,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:47,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1816483301, now seen corresponding path program 1 times [2022-04-05 04:20:47,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:47,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720674161] [2022-04-05 04:20:47,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:47,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 04:20:47,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:47,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720674161] [2022-04-05 04:20:47,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720674161] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:47,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:47,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:47,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866466736] [2022-04-05 04:20:47,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:47,780 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:47,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:47,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:47,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:47,781 INFO L87 Difference]: Start difference. First operand 282 states and 439 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:49,795 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 [] [2022-04-05 04:20:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:50,180 INFO L93 Difference]: Finished difference Result 295 states and 454 transitions. [2022-04-05 04:20:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:20:50,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-04-05 04:20:50,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:50,181 INFO L225 Difference]: With dead ends: 295 [2022-04-05 04:20:50,181 INFO L226 Difference]: Without dead ends: 295 [2022-04-05 04:20:50,181 INFO L912 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 [2022-04-05 04:20:50,182 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 19 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:50,182 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 634 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:20:50,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-04-05 04:20:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 282. [2022-04-05 04:20:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5667870036101084) internal successors, (434), 277 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 438 transitions. [2022-04-05 04:20:50,188 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 438 transitions. Word has length 111 [2022-04-05 04:20:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:50,188 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 438 transitions. [2022-04-05 04:20:50,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 438 transitions. [2022-04-05 04:20:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-04-05 04:20:50,189 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:50,190 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:20:50,190 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:20:50,190 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2050275241, now seen corresponding path program 1 times [2022-04-05 04:20:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:50,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448973537] [2022-04-05 04:20:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-05 04:20:50,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:50,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448973537] [2022-04-05 04:20:50,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448973537] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:50,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:50,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:20:50,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570526912] [2022-04-05 04:20:50,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:50,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:20:50,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:50,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:20:50,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:20:50,313 INFO L87 Difference]: Start difference. First operand 282 states and 438 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 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) [2022-04-05 04:20:53,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:20:55,507 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 [] [2022-04-05 04:20:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:20:56,658 INFO L93 Difference]: Finished difference Result 291 states and 449 transitions. [2022-04-05 04:20:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:20:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 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 112 [2022-04-05 04:20:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:20:56,660 INFO L225 Difference]: With dead ends: 291 [2022-04-05 04:20:56,660 INFO L226 Difference]: Without dead ends: 291 [2022-04-05 04:20:56,660 INFO L912 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 [2022-04-05 04:20:56,661 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:20:56,661 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 04:20:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-04-05 04:20:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2022-04-05 04:20:56,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.555944055944056) internal successors, (445), 286 states have internal predecessors, (445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2022-04-05 04:20:56,666 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 112 [2022-04-05 04:20:56,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:20:56,667 INFO L478 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2022-04-05 04:20:56,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 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) [2022-04-05 04:20:56,667 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2022-04-05 04:20:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-04-05 04:20:56,668 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:20:56,668 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:20:56,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:20:56,668 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:20:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:20:56,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1195242861, now seen corresponding path program 1 times [2022-04-05 04:20:56,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:20:56,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626302059] [2022-04-05 04:20:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:20:56,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:20:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:56,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:20:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:20:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:20:56,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:20:56,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626302059] [2022-04-05 04:20:56,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626302059] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:20:56,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:20:56,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:20:56,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539643308] [2022-04-05 04:20:56,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:20:56,774 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:20:56,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:20:56,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:20:56,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:20:56,775 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:20:58,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:00,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:02,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:04,654 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 [] [2022-04-05 04:21:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:05,049 INFO L93 Difference]: Finished difference Result 308 states and 470 transitions. [2022-04-05 04:21:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:05,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-04-05 04:21:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:05,051 INFO L225 Difference]: With dead ends: 308 [2022-04-05 04:21:05,051 INFO L226 Difference]: Without dead ends: 308 [2022-04-05 04:21:05,052 INFO L912 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 [2022-04-05 04:21:05,052 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:05,052 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-04-05 04:21:05,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-04-05 04:21:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 291. [2022-04-05 04:21:05,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.5524475524475525) internal successors, (444), 286 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:05,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 448 transitions. [2022-04-05 04:21:05,058 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 448 transitions. Word has length 114 [2022-04-05 04:21:05,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:05,058 INFO L478 AbstractCegarLoop]: Abstraction has 291 states and 448 transitions. [2022-04-05 04:21:05,058 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:05,058 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 448 transitions. [2022-04-05 04:21:05,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-04-05 04:21:05,059 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:05,060 INFO L499 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] [2022-04-05 04:21:05,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:21:05,060 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:05,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1677366494, now seen corresponding path program 1 times [2022-04-05 04:21:05,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:05,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828294370] [2022-04-05 04:21:05,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:05,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:21:05,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:05,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828294370] [2022-04-05 04:21:05,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828294370] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:05,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:05,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:05,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535042204] [2022-04-05 04:21:05,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:05,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:05,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:05,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:05,176 INFO L87 Difference]: Start difference. First operand 291 states and 448 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:07,185 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 [] [2022-04-05 04:21:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:07,626 INFO L93 Difference]: Finished difference Result 462 states and 713 transitions. [2022-04-05 04:21:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:07,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-04-05 04:21:07,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:07,628 INFO L225 Difference]: With dead ends: 462 [2022-04-05 04:21:07,628 INFO L226 Difference]: Without dead ends: 462 [2022-04-05 04:21:07,628 INFO L912 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 [2022-04-05 04:21:07,628 INFO L913 BasicCegarLoop]: 160 mSDtfsCounter, 141 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:07,629 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 450 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:21:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-04-05 04:21:07,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 355. [2022-04-05 04:21:07,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5657142857142856) internal successors, (548), 350 states have internal predecessors, (548), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 552 transitions. [2022-04-05 04:21:07,636 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 552 transitions. Word has length 119 [2022-04-05 04:21:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:07,636 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 552 transitions. [2022-04-05 04:21:07,636 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 552 transitions. [2022-04-05 04:21:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 04:21:07,638 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:07,638 INFO L499 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] [2022-04-05 04:21:07,638 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:21:07,638 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:07,638 INFO L85 PathProgramCache]: Analyzing trace with hash -493221854, now seen corresponding path program 1 times [2022-04-05 04:21:07,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:07,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816298792] [2022-04-05 04:21:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:07,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-05 04:21:07,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:07,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816298792] [2022-04-05 04:21:07,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816298792] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:07,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:07,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:07,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244190414] [2022-04-05 04:21:07,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:07,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:07,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:07,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:07,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:07,771 INFO L87 Difference]: Start difference. First operand 355 states and 552 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:09,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:11,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:13,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:13,869 INFO L93 Difference]: Finished difference Result 362 states and 561 transitions. [2022-04-05 04:21:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:13,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-05 04:21:13,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:13,870 INFO L225 Difference]: With dead ends: 362 [2022-04-05 04:21:13,870 INFO L226 Difference]: Without dead ends: 362 [2022-04-05 04:21:13,871 INFO L912 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 [2022-04-05 04:21:13,871 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:13,871 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 04:21:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-05 04:21:13,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-04-05 04:21:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.562857142857143) internal successors, (547), 350 states have internal predecessors, (547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 551 transitions. [2022-04-05 04:21:13,878 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 551 transitions. Word has length 124 [2022-04-05 04:21:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:13,878 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 551 transitions. [2022-04-05 04:21:13,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 551 transitions. [2022-04-05 04:21:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-05 04:21:13,879 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:13,880 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:13,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:21:13,880 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:13,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:13,880 INFO L85 PathProgramCache]: Analyzing trace with hash 423811832, now seen corresponding path program 1 times [2022-04-05 04:21:13,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:13,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044748987] [2022-04-05 04:21:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:13,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:13,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:21:13,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:13,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044748987] [2022-04-05 04:21:13,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044748987] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:13,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:13,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:13,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595233718] [2022-04-05 04:21:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:13,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:13,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:13,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:13,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:13,997 INFO L87 Difference]: Start difference. First operand 355 states and 551 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:15,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:17,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:19,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:19,739 INFO L93 Difference]: Finished difference Result 464 states and 713 transitions. [2022-04-05 04:21:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:19,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-05 04:21:19,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:19,741 INFO L225 Difference]: With dead ends: 464 [2022-04-05 04:21:19,741 INFO L226 Difference]: Without dead ends: 464 [2022-04-05 04:21:19,741 INFO L912 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 [2022-04-05 04:21:19,742 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 92 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:19,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 547 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 533 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 04:21:19,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-04-05 04:21:19,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 394. [2022-04-05 04:21:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5681233933161953) internal successors, (610), 389 states have internal predecessors, (610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 614 transitions. [2022-04-05 04:21:19,750 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 614 transitions. Word has length 125 [2022-04-05 04:21:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:19,750 INFO L478 AbstractCegarLoop]: Abstraction has 394 states and 614 transitions. [2022-04-05 04:21:19,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 614 transitions. [2022-04-05 04:21:19,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-05 04:21:19,751 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:19,751 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:19,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:21:19,751 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash 437344633, now seen corresponding path program 1 times [2022-04-05 04:21:19,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:19,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702450259] [2022-04-05 04:21:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:19,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:21:19,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:19,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702450259] [2022-04-05 04:21:19,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702450259] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:19,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:19,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:19,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201520832] [2022-04-05 04:21:19,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:19,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:19,898 INFO L87 Difference]: Start difference. First operand 394 states and 614 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:21,906 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 [] [2022-04-05 04:21:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:22,361 INFO L93 Difference]: Finished difference Result 529 states and 815 transitions. [2022-04-05 04:21:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:22,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-05 04:21:22,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:22,363 INFO L225 Difference]: With dead ends: 529 [2022-04-05 04:21:22,364 INFO L226 Difference]: Without dead ends: 529 [2022-04-05 04:21:22,364 INFO L912 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 [2022-04-05 04:21:22,364 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 137 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:22,364 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 410 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:21:22,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-04-05 04:21:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 392. [2022-04-05 04:21:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5684754521963824) internal successors, (607), 387 states have internal predecessors, (607), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 611 transitions. [2022-04-05 04:21:22,372 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 611 transitions. Word has length 125 [2022-04-05 04:21:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:22,372 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 611 transitions. [2022-04-05 04:21:22,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 611 transitions. [2022-04-05 04:21:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-04-05 04:21:22,373 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:22,374 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:22,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:21:22,374 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:22,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:22,374 INFO L85 PathProgramCache]: Analyzing trace with hash 295665995, now seen corresponding path program 1 times [2022-04-05 04:21:22,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:22,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560171760] [2022-04-05 04:21:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:22,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:22,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:21:22,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:22,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560171760] [2022-04-05 04:21:22,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560171760] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:22,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:22,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:22,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886038456] [2022-04-05 04:21:22,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:22,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:22,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:22,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:22,525 INFO L87 Difference]: Start difference. First operand 392 states and 611 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:24,935 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 [] [2022-04-05 04:21:26,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:26,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:26,580 INFO L93 Difference]: Finished difference Result 498 states and 768 transitions. [2022-04-05 04:21:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:26,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-04-05 04:21:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:26,582 INFO L225 Difference]: With dead ends: 498 [2022-04-05 04:21:26,582 INFO L226 Difference]: Without dead ends: 498 [2022-04-05 04:21:26,582 INFO L912 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 [2022-04-05 04:21:26,583 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 87 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:26,583 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 541 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:21:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-04-05 04:21:26,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 432. [2022-04-05 04:21:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 427 states have (on average 1.5714285714285714) internal successors, (671), 427 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:26,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 675 transitions. [2022-04-05 04:21:26,591 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 675 transitions. Word has length 126 [2022-04-05 04:21:26,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:26,591 INFO L478 AbstractCegarLoop]: Abstraction has 432 states and 675 transitions. [2022-04-05 04:21:26,591 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:26,591 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 675 transitions. [2022-04-05 04:21:26,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-04-05 04:21:26,592 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:26,592 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:26,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:21:26,593 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:26,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:26,593 INFO L85 PathProgramCache]: Analyzing trace with hash 715182826, now seen corresponding path program 1 times [2022-04-05 04:21:26,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:26,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780927643] [2022-04-05 04:21:26,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:26,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-04-05 04:21:26,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:26,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780927643] [2022-04-05 04:21:26,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780927643] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:26,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:26,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:26,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668851240] [2022-04-05 04:21:26,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:26,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:26,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:26,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:26,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:26,737 INFO L87 Difference]: Start difference. First operand 432 states and 675 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:28,751 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 [] [2022-04-05 04:21:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:29,160 INFO L93 Difference]: Finished difference Result 488 states and 753 transitions. [2022-04-05 04:21:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:29,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-04-05 04:21:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:29,163 INFO L225 Difference]: With dead ends: 488 [2022-04-05 04:21:29,163 INFO L226 Difference]: Without dead ends: 488 [2022-04-05 04:21:29,163 INFO L912 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 [2022-04-05 04:21:29,164 INFO L913 BasicCegarLoop]: 267 mSDtfsCounter, 36 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:29,164 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 669 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:21:29,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-04-05 04:21:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 456. [2022-04-05 04:21:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5676274944567627) internal successors, (707), 451 states have internal predecessors, (707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 711 transitions. [2022-04-05 04:21:29,172 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 711 transitions. Word has length 126 [2022-04-05 04:21:29,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:29,172 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 711 transitions. [2022-04-05 04:21:29,172 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:29,172 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 711 transitions. [2022-04-05 04:21:29,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 04:21:29,173 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:29,174 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:29,174 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:21:29,174 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1786561130, now seen corresponding path program 1 times [2022-04-05 04:21:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:29,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521813745] [2022-04-05 04:21:29,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:29,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:29,292 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:21:29,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:29,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521813745] [2022-04-05 04:21:29,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521813745] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:29,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:29,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:29,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472387766] [2022-04-05 04:21:29,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:29,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:29,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:29,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:29,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:29,293 INFO L87 Difference]: Start difference. First operand 456 states and 711 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:31,307 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 [] [2022-04-05 04:21:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:31,728 INFO L93 Difference]: Finished difference Result 513 states and 788 transitions. [2022-04-05 04:21:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 04:21:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:31,730 INFO L225 Difference]: With dead ends: 513 [2022-04-05 04:21:31,730 INFO L226 Difference]: Without dead ends: 513 [2022-04-05 04:21:31,730 INFO L912 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 [2022-04-05 04:21:31,731 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 69 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:31,731 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 547 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 517 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:21:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-04-05 04:21:31,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 459. [2022-04-05 04:21:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5638766519823788) internal successors, (710), 454 states have internal predecessors, (710), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 714 transitions. [2022-04-05 04:21:31,739 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 714 transitions. Word has length 133 [2022-04-05 04:21:31,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:31,740 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 714 transitions. [2022-04-05 04:21:31,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:31,740 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 714 transitions. [2022-04-05 04:21:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-04-05 04:21:31,741 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:31,741 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 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] [2022-04-05 04:21:31,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 04:21:31,741 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:31,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:31,742 INFO L85 PathProgramCache]: Analyzing trace with hash 500717211, now seen corresponding path program 1 times [2022-04-05 04:21:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:31,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445477157] [2022-04-05 04:21:31,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:31,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:31,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:21:31,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:31,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445477157] [2022-04-05 04:21:31,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445477157] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:31,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:31,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:31,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299652723] [2022-04-05 04:21:31,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:31,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:31,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:31,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:31,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:31,877 INFO L87 Difference]: Start difference. First operand 459 states and 714 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:33,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:35,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:37,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:37,956 INFO L93 Difference]: Finished difference Result 544 states and 830 transitions. [2022-04-05 04:21:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:37,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-04-05 04:21:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:37,959 INFO L225 Difference]: With dead ends: 544 [2022-04-05 04:21:37,959 INFO L226 Difference]: Without dead ends: 544 [2022-04-05 04:21:37,959 INFO L912 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 [2022-04-05 04:21:37,959 INFO L913 BasicCegarLoop]: 155 mSDtfsCounter, 159 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:37,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 440 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 507 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 04:21:37,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-04-05 04:21:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 459. [2022-04-05 04:21:37,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5462555066079295) internal successors, (702), 454 states have internal predecessors, (702), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:37,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 706 transitions. [2022-04-05 04:21:37,968 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 706 transitions. Word has length 143 [2022-04-05 04:21:37,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:37,968 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 706 transitions. [2022-04-05 04:21:37,968 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:37,968 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 706 transitions. [2022-04-05 04:21:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 04:21:37,969 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:37,970 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:37,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:21:37,970 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:37,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:37,970 INFO L85 PathProgramCache]: Analyzing trace with hash 111454881, now seen corresponding path program 1 times [2022-04-05 04:21:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:37,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889345529] [2022-04-05 04:21:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:37,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 04:21:38,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:38,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889345529] [2022-04-05 04:21:38,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889345529] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:38,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:38,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:38,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604570511] [2022-04-05 04:21:38,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:38,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:38,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:38,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:38,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:38,086 INFO L87 Difference]: Start difference. First operand 459 states and 706 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:39,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:41,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:43,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:44,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:44,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:44,957 INFO L93 Difference]: Finished difference Result 493 states and 754 transitions. [2022-04-05 04:21:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:44,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 04:21:44,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:44,959 INFO L225 Difference]: With dead ends: 493 [2022-04-05 04:21:44,959 INFO L226 Difference]: Without dead ends: 493 [2022-04-05 04:21:44,959 INFO L912 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 [2022-04-05 04:21:44,959 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 90 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:44,959 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 563 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 04:21:44,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-04-05 04:21:44,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 459. [2022-04-05 04:21:44,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5440528634361232) internal successors, (701), 454 states have internal predecessors, (701), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:44,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 705 transitions. [2022-04-05 04:21:44,967 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 705 transitions. Word has length 146 [2022-04-05 04:21:44,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:44,967 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 705 transitions. [2022-04-05 04:21:44,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:44,968 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 705 transitions. [2022-04-05 04:21:44,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 04:21:44,969 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:44,969 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:44,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:21:44,969 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:44,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:44,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1380090645, now seen corresponding path program 1 times [2022-04-05 04:21:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:44,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350782625] [2022-04-05 04:21:44,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:21:45,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:45,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350782625] [2022-04-05 04:21:45,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350782625] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:45,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:45,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:45,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984867544] [2022-04-05 04:21:45,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:45,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:45,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:45,121 INFO L87 Difference]: Start difference. First operand 459 states and 705 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:46,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:48,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:50,403 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 [] [2022-04-05 04:21:51,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:51,607 INFO L93 Difference]: Finished difference Result 584 states and 887 transitions. [2022-04-05 04:21:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:51,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 04:21:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:51,609 INFO L225 Difference]: With dead ends: 584 [2022-04-05 04:21:51,609 INFO L226 Difference]: Without dead ends: 584 [2022-04-05 04:21:51,610 INFO L912 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 [2022-04-05 04:21:51,610 INFO L913 BasicCegarLoop]: 155 mSDtfsCounter, 142 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:51,610 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 440 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 510 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-05 04:21:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-04-05 04:21:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 489. [2022-04-05 04:21:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5351239669421488) internal successors, (743), 484 states have internal predecessors, (743), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:51,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 747 transitions. [2022-04-05 04:21:51,618 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 747 transitions. Word has length 146 [2022-04-05 04:21:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:51,619 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 747 transitions. [2022-04-05 04:21:51,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 747 transitions. [2022-04-05 04:21:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 04:21:51,620 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:51,620 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:51,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 04:21:51,621 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:51,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:51,621 INFO L85 PathProgramCache]: Analyzing trace with hash -841746752, now seen corresponding path program 1 times [2022-04-05 04:21:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:51,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128192892] [2022-04-05 04:21:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:51,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 04:21:51,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:51,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128192892] [2022-04-05 04:21:51,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128192892] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:51,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:51,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:51,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900003252] [2022-04-05 04:21:51,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:51,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:51,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:51,734 INFO L87 Difference]: Start difference. First operand 489 states and 747 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:54,558 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 [] [2022-04-05 04:21:56,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:21:56,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:21:56,747 INFO L93 Difference]: Finished difference Result 501 states and 763 transitions. [2022-04-05 04:21:56,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:21:56,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 04:21:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:21:56,749 INFO L225 Difference]: With dead ends: 501 [2022-04-05 04:21:56,749 INFO L226 Difference]: Without dead ends: 501 [2022-04-05 04:21:56,749 INFO L912 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 [2022-04-05 04:21:56,749 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 40 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:21:56,750 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 655 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 04:21:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-04-05 04:21:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 489. [2022-04-05 04:21:56,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5330578512396693) internal successors, (742), 484 states have internal predecessors, (742), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 746 transitions. [2022-04-05 04:21:56,757 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 746 transitions. Word has length 146 [2022-04-05 04:21:56,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:21:56,757 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 746 transitions. [2022-04-05 04:21:56,758 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 746 transitions. [2022-04-05 04:21:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 04:21:56,759 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:21:56,759 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:21:56,759 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:21:56,759 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:21:56,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:21:56,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1302552011, now seen corresponding path program 1 times [2022-04-05 04:21:56,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:21:56,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125653647] [2022-04-05 04:21:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:21:56,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:21:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:21:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:21:56,893 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:21:56,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:21:56,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125653647] [2022-04-05 04:21:56,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125653647] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:21:56,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:21:56,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:21:56,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744421115] [2022-04-05 04:21:56,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:21:56,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:21:56,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:21:56,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:21:56,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:21:56,895 INFO L87 Difference]: Start difference. First operand 489 states and 746 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:21:59,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:00,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:02,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:02,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:02,953 INFO L93 Difference]: Finished difference Result 521 states and 792 transitions. [2022-04-05 04:22:02,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:02,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-05 04:22:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:02,954 INFO L225 Difference]: With dead ends: 521 [2022-04-05 04:22:02,954 INFO L226 Difference]: Without dead ends: 521 [2022-04-05 04:22:02,954 INFO L912 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 [2022-04-05 04:22:02,955 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 67 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:02,955 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 567 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 04:22:02,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-04-05 04:22:02,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 489. [2022-04-05 04:22:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.53099173553719) internal successors, (741), 484 states have internal predecessors, (741), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 745 transitions. [2022-04-05 04:22:02,962 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 745 transitions. Word has length 147 [2022-04-05 04:22:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:02,962 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 745 transitions. [2022-04-05 04:22:02,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 745 transitions. [2022-04-05 04:22:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 04:22:02,964 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:02,964 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:02,964 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 04:22:02,964 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:02,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1125148137, now seen corresponding path program 1 times [2022-04-05 04:22:02,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:02,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667432907] [2022-04-05 04:22:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:02,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:22:03,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:03,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667432907] [2022-04-05 04:22:03,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667432907] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:03,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:03,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:03,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960880508] [2022-04-05 04:22:03,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:03,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:03,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:03,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:03,081 INFO L87 Difference]: Start difference. First operand 489 states and 745 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:06,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:08,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:08,971 INFO L93 Difference]: Finished difference Result 574 states and 862 transitions. [2022-04-05 04:22:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:08,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 04:22:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:08,973 INFO L225 Difference]: With dead ends: 574 [2022-04-05 04:22:08,974 INFO L226 Difference]: Without dead ends: 574 [2022-04-05 04:22:08,974 INFO L912 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 [2022-04-05 04:22:08,974 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 148 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:08,975 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 426 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 04:22:08,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-04-05 04:22:08,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 489. [2022-04-05 04:22:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5165289256198347) internal successors, (734), 484 states have internal predecessors, (734), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 738 transitions. [2022-04-05 04:22:08,982 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 738 transitions. Word has length 148 [2022-04-05 04:22:08,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:08,982 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 738 transitions. [2022-04-05 04:22:08,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 738 transitions. [2022-04-05 04:22:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 04:22:08,984 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:08,984 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:08,984 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 04:22:08,984 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:08,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:08,985 INFO L85 PathProgramCache]: Analyzing trace with hash -73587128, now seen corresponding path program 1 times [2022-04-05 04:22:08,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:08,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948436394] [2022-04-05 04:22:08,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:08,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 04:22:09,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:09,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948436394] [2022-04-05 04:22:09,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948436394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:09,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:09,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:22:09,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779342064] [2022-04-05 04:22:09,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:09,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:22:09,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:09,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:22:09,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:22:09,119 INFO L87 Difference]: Start difference. First operand 489 states and 738 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:10,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:13,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:15,037 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 [] [2022-04-05 04:22:15,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:15,364 INFO L93 Difference]: Finished difference Result 947 states and 1419 transitions. [2022-04-05 04:22:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:22:15,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 04:22:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:15,367 INFO L225 Difference]: With dead ends: 947 [2022-04-05 04:22:15,367 INFO L226 Difference]: Without dead ends: 947 [2022-04-05 04:22:15,367 INFO L912 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 [2022-04-05 04:22:15,368 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:15,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 448 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 339 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 04:22:15,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-04-05 04:22:15,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 945. [2022-04-05 04:22:15,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.504255319148936) internal successors, (1414), 940 states have internal predecessors, (1414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1418 transitions. [2022-04-05 04:22:15,380 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1418 transitions. Word has length 148 [2022-04-05 04:22:15,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:15,380 INFO L478 AbstractCegarLoop]: Abstraction has 945 states and 1418 transitions. [2022-04-05 04:22:15,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:15,381 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1418 transitions. [2022-04-05 04:22:15,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 04:22:15,383 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:15,383 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:15,383 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 04:22:15,383 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:15,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:15,383 INFO L85 PathProgramCache]: Analyzing trace with hash 50486119, now seen corresponding path program 1 times [2022-04-05 04:22:15,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:15,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804410457] [2022-04-05 04:22:15,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:15,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:15,496 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-04-05 04:22:15,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:15,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804410457] [2022-04-05 04:22:15,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804410457] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:15,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:15,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:15,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163535061] [2022-04-05 04:22:15,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:15,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:15,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:15,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:15,497 INFO L87 Difference]: Start difference. First operand 945 states and 1418 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:16,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:19,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:19,708 INFO L93 Difference]: Finished difference Result 1044 states and 1554 transitions. [2022-04-05 04:22:19,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:19,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 04:22:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:19,711 INFO L225 Difference]: With dead ends: 1044 [2022-04-05 04:22:19,711 INFO L226 Difference]: Without dead ends: 1044 [2022-04-05 04:22:19,711 INFO L912 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 [2022-04-05 04:22:19,712 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 36 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:19,712 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 641 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-05 04:22:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-04-05 04:22:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 997. [2022-04-05 04:22:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.502016129032258) internal successors, (1490), 992 states have internal predecessors, (1490), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:19,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1494 transitions. [2022-04-05 04:22:19,725 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1494 transitions. Word has length 148 [2022-04-05 04:22:19,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:19,726 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1494 transitions. [2022-04-05 04:22:19,726 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1494 transitions. [2022-04-05 04:22:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-05 04:22:19,728 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:19,728 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:19,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 04:22:19,728 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:19,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:19,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2147424636, now seen corresponding path program 1 times [2022-04-05 04:22:19,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:19,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943907763] [2022-04-05 04:22:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:19,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:22:19,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:19,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943907763] [2022-04-05 04:22:19,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943907763] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:19,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:19,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:19,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941034074] [2022-04-05 04:22:19,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:19,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:19,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:19,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:19,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:19,861 INFO L87 Difference]: Start difference. First operand 997 states and 1494 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:22,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:24,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:26,675 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 [] [2022-04-05 04:22:27,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:27,071 INFO L93 Difference]: Finished difference Result 1060 states and 1579 transitions. [2022-04-05 04:22:27,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:27,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-04-05 04:22:27,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:27,074 INFO L225 Difference]: With dead ends: 1060 [2022-04-05 04:22:27,074 INFO L226 Difference]: Without dead ends: 1060 [2022-04-05 04:22:27,075 INFO L912 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 [2022-04-05 04:22:27,075 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 68 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:27,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 581 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 506 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-04-05 04:22:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-04-05 04:22:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 997. [2022-04-05 04:22:27,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.5) internal successors, (1488), 992 states have internal predecessors, (1488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1492 transitions. [2022-04-05 04:22:27,089 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1492 transitions. Word has length 150 [2022-04-05 04:22:27,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:27,089 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1492 transitions. [2022-04-05 04:22:27,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1492 transitions. [2022-04-05 04:22:27,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-04-05 04:22:27,091 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:27,092 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:27,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:22:27,092 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:27,092 INFO L85 PathProgramCache]: Analyzing trace with hash -256300962, now seen corresponding path program 1 times [2022-04-05 04:22:27,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:27,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689183387] [2022-04-05 04:22:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:27,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:27,212 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:22:27,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:27,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689183387] [2022-04-05 04:22:27,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689183387] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:27,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:27,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:27,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037961313] [2022-04-05 04:22:27,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:27,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:27,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:27,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:27,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:27,213 INFO L87 Difference]: Start difference. First operand 997 states and 1492 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:28,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:30,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:31,229 INFO L93 Difference]: Finished difference Result 1162 states and 1704 transitions. [2022-04-05 04:22:31,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:31,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-04-05 04:22:31,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:31,233 INFO L225 Difference]: With dead ends: 1162 [2022-04-05 04:22:31,233 INFO L226 Difference]: Without dead ends: 1162 [2022-04-05 04:22:31,233 INFO L912 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 [2022-04-05 04:22:31,234 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 143 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:31,234 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 412 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:22:31,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-04-05 04:22:31,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 997. [2022-04-05 04:22:31,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4858870967741935) internal successors, (1474), 992 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1478 transitions. [2022-04-05 04:22:31,247 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1478 transitions. Word has length 151 [2022-04-05 04:22:31,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:31,247 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1478 transitions. [2022-04-05 04:22:31,248 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:31,248 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1478 transitions. [2022-04-05 04:22:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-05 04:22:31,250 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:31,250 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:31,250 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:22:31,250 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:31,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:31,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1370523072, now seen corresponding path program 1 times [2022-04-05 04:22:31,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:31,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746509356] [2022-04-05 04:22:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:31,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:22:31,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:31,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746509356] [2022-04-05 04:22:31,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746509356] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:31,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:31,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:31,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75548601] [2022-04-05 04:22:31,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:31,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:31,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:31,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:31,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:31,386 INFO L87 Difference]: Start difference. First operand 997 states and 1478 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) [2022-04-05 04:22:33,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:36,296 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 [] [2022-04-05 04:22:36,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:36,689 INFO L93 Difference]: Finished difference Result 1044 states and 1537 transitions. [2022-04-05 04:22:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:36,690 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 154 [2022-04-05 04:22:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:36,692 INFO L225 Difference]: With dead ends: 1044 [2022-04-05 04:22:36,692 INFO L226 Difference]: Without dead ends: 1044 [2022-04-05 04:22:36,692 INFO L912 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 [2022-04-05 04:22:36,693 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 59 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:36,693 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 04:22:36,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-04-05 04:22:36,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 997. [2022-04-05 04:22:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4838709677419355) internal successors, (1472), 992 states have internal predecessors, (1472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1476 transitions. [2022-04-05 04:22:36,711 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1476 transitions. Word has length 154 [2022-04-05 04:22:36,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:36,711 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1476 transitions. [2022-04-05 04:22:36,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:36,712 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1476 transitions. [2022-04-05 04:22:36,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-05 04:22:36,714 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:36,714 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:36,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:22:36,714 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:36,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:36,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1544979744, now seen corresponding path program 1 times [2022-04-05 04:22:36,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:36,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995424241] [2022-04-05 04:22:36,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:36,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:36,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:22:36,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:36,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995424241] [2022-04-05 04:22:36,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995424241] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:36,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:36,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:36,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214309292] [2022-04-05 04:22:36,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:36,834 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:36,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:36,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:36,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:36,835 INFO L87 Difference]: Start difference. First operand 997 states and 1476 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:38,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:39,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:41,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:42,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:42,686 INFO L93 Difference]: Finished difference Result 1040 states and 1529 transitions. [2022-04-05 04:22:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:42,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-05 04:22:42,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:42,689 INFO L225 Difference]: With dead ends: 1040 [2022-04-05 04:22:42,689 INFO L226 Difference]: Without dead ends: 1040 [2022-04-05 04:22:42,689 INFO L912 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 [2022-04-05 04:22:42,689 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 56 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:42,690 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 605 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 04:22:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-04-05 04:22:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 997. [2022-04-05 04:22:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4818548387096775) internal successors, (1470), 992 states have internal predecessors, (1470), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1474 transitions. [2022-04-05 04:22:42,702 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1474 transitions. Word has length 155 [2022-04-05 04:22:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:42,703 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1474 transitions. [2022-04-05 04:22:42,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1474 transitions. [2022-04-05 04:22:42,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 04:22:42,705 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:42,705 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:42,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:22:42,705 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:42,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:42,706 INFO L85 PathProgramCache]: Analyzing trace with hash -728495667, now seen corresponding path program 1 times [2022-04-05 04:22:42,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:42,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069017774] [2022-04-05 04:22:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:42,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:42,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:22:42,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:42,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069017774] [2022-04-05 04:22:42,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069017774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:42,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:42,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:42,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558252589] [2022-04-05 04:22:42,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:42,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:42,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:42,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:42,847 INFO L87 Difference]: Start difference. First operand 997 states and 1474 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:44,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:46,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:48,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:49,166 INFO L93 Difference]: Finished difference Result 1040 states and 1527 transitions. [2022-04-05 04:22:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:49,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-05 04:22:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:49,169 INFO L225 Difference]: With dead ends: 1040 [2022-04-05 04:22:49,169 INFO L226 Difference]: Without dead ends: 1040 [2022-04-05 04:22:49,169 INFO L912 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 [2022-04-05 04:22:49,169 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 49 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:49,169 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 605 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 04:22:49,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-04-05 04:22:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 997. [2022-04-05 04:22:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4798387096774193) internal successors, (1468), 992 states have internal predecessors, (1468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1472 transitions. [2022-04-05 04:22:49,181 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1472 transitions. Word has length 158 [2022-04-05 04:22:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:49,181 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1472 transitions. [2022-04-05 04:22:49,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1472 transitions. [2022-04-05 04:22:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 04:22:49,183 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:49,183 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:49,184 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:22:49,184 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:49,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:49,184 INFO L85 PathProgramCache]: Analyzing trace with hash -212926458, now seen corresponding path program 1 times [2022-04-05 04:22:49,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:49,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759158853] [2022-04-05 04:22:49,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:49,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 04:22:49,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:49,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759158853] [2022-04-05 04:22:49,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759158853] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:49,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:49,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:49,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222758110] [2022-04-05 04:22:49,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:49,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:49,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:49,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:49,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:49,311 INFO L87 Difference]: Start difference. First operand 997 states and 1472 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:52,580 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 [] [2022-04-05 04:22:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:52,999 INFO L93 Difference]: Finished difference Result 1242 states and 1812 transitions. [2022-04-05 04:22:53,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:53,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-05 04:22:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:53,003 INFO L225 Difference]: With dead ends: 1242 [2022-04-05 04:22:53,003 INFO L226 Difference]: Without dead ends: 1242 [2022-04-05 04:22:53,003 INFO L912 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 [2022-04-05 04:22:53,003 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 136 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:53,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 412 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 04:22:53,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-04-05 04:22:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1067. [2022-04-05 04:22:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4764595103578155) internal successors, (1568), 1062 states have internal predecessors, (1568), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1572 transitions. [2022-04-05 04:22:53,029 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1572 transitions. Word has length 158 [2022-04-05 04:22:53,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:53,029 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1572 transitions. [2022-04-05 04:22:53,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:53,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1572 transitions. [2022-04-05 04:22:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-04-05 04:22:53,032 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:53,032 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:53,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:22:53,032 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:53,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash -159893672, now seen corresponding path program 1 times [2022-04-05 04:22:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:53,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194371715] [2022-04-05 04:22:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:53,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:22:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:53,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194371715] [2022-04-05 04:22:53,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194371715] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:53,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:53,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:53,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228342221] [2022-04-05 04:22:53,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:53,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:53,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:53,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:53,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:53,169 INFO L87 Difference]: Start difference. First operand 1067 states and 1572 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:55,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:57,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:22:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:22:58,998 INFO L93 Difference]: Finished difference Result 1232 states and 1788 transitions. [2022-04-05 04:22:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:22:58,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-04-05 04:22:58,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:22:59,002 INFO L225 Difference]: With dead ends: 1232 [2022-04-05 04:22:59,002 INFO L226 Difference]: Without dead ends: 1232 [2022-04-05 04:22:59,002 INFO L912 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 [2022-04-05 04:22:59,002 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 137 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:22:59,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 412 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 04:22:59,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2022-04-05 04:22:59,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1067. [2022-04-05 04:22:59,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4670433145009416) internal successors, (1558), 1062 states have internal predecessors, (1558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1562 transitions. [2022-04-05 04:22:59,013 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1562 transitions. Word has length 159 [2022-04-05 04:22:59,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:22:59,014 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1562 transitions. [2022-04-05 04:22:59,014 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:22:59,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1562 transitions. [2022-04-05 04:22:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-04-05 04:22:59,016 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:22:59,016 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:22:59,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:22:59,016 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:22:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:22:59,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1161711826, now seen corresponding path program 1 times [2022-04-05 04:22:59,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:22:59,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735959490] [2022-04-05 04:22:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:22:59,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:22:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:59,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:22:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:22:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 04:22:59,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:22:59,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735959490] [2022-04-05 04:22:59,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735959490] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:22:59,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:22:59,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:22:59,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092341672] [2022-04-05 04:22:59,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:22:59,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:22:59,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:22:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:22:59,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:22:59,135 INFO L87 Difference]: Start difference. First operand 1067 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:00,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:02,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:23:02,512 INFO L93 Difference]: Finished difference Result 1092 states and 1592 transitions. [2022-04-05 04:23:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:23:02,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-04-05 04:23:02,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:23:02,521 INFO L225 Difference]: With dead ends: 1092 [2022-04-05 04:23:02,521 INFO L226 Difference]: Without dead ends: 1092 [2022-04-05 04:23:02,522 INFO L912 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 [2022-04-05 04:23:02,522 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 33 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:23:02,523 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 611 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-05 04:23:02,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-04-05 04:23:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1067. [2022-04-05 04:23:02,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4651600753295668) internal successors, (1556), 1062 states have internal predecessors, (1556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:02,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1560 transitions. [2022-04-05 04:23:02,538 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1560 transitions. Word has length 159 [2022-04-05 04:23:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:23:02,538 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1560 transitions. [2022-04-05 04:23:02,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:02,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1560 transitions. [2022-04-05 04:23:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-05 04:23:02,540 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:23:02,540 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:23:02,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:23:02,541 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:23:02,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:23:02,541 INFO L85 PathProgramCache]: Analyzing trace with hash -77990792, now seen corresponding path program 1 times [2022-04-05 04:23:02,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:23:02,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422958793] [2022-04-05 04:23:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:23:02,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:23:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:23:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-04-05 04:23:02,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:23:02,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422958793] [2022-04-05 04:23:02,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422958793] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:23:02,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:23:02,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:23:02,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590639799] [2022-04-05 04:23:02,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:23:02,640 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:23:02,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:23:02,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:23:02,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:23:02,641 INFO L87 Difference]: Start difference. First operand 1067 states and 1560 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:05,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:07,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:23:07,318 INFO L93 Difference]: Finished difference Result 1094 states and 1595 transitions. [2022-04-05 04:23:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:23:07,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-04-05 04:23:07,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:23:07,321 INFO L225 Difference]: With dead ends: 1094 [2022-04-05 04:23:07,321 INFO L226 Difference]: Without dead ends: 1094 [2022-04-05 04:23:07,321 INFO L912 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 [2022-04-05 04:23:07,321 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:23:07,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 292 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 04:23:07,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-04-05 04:23:07,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2022-04-05 04:23:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1089 states have (on average 1.460973370064279) internal successors, (1591), 1089 states have internal predecessors, (1591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1595 transitions. [2022-04-05 04:23:07,331 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1595 transitions. Word has length 167 [2022-04-05 04:23:07,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:23:07,332 INFO L478 AbstractCegarLoop]: Abstraction has 1094 states and 1595 transitions. [2022-04-05 04:23:07,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1595 transitions. [2022-04-05 04:23:07,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-05 04:23:07,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:23:07,334 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:23:07,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:23:07,334 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:23:07,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:23:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash -155981063, now seen corresponding path program 1 times [2022-04-05 04:23:07,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:23:07,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904047805] [2022-04-05 04:23:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:23:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:23:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:23:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-04-05 04:23:07,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:23:07,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904047805] [2022-04-05 04:23:07,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904047805] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:23:07,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:23:07,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:23:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511415432] [2022-04-05 04:23:07,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:23:07,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:23:07,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:23:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:23:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:23:07,433 INFO L87 Difference]: Start difference. First operand 1094 states and 1595 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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) [2022-04-05 04:23:09,451 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 [] [2022-04-05 04:23:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:23:09,693 INFO L93 Difference]: Finished difference Result 1096 states and 1597 transitions. [2022-04-05 04:23:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:23:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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 167 [2022-04-05 04:23:09,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:23:09,696 INFO L225 Difference]: With dead ends: 1096 [2022-04-05 04:23:09,696 INFO L226 Difference]: Without dead ends: 1096 [2022-04-05 04:23:09,696 INFO L912 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 [2022-04-05 04:23:09,696 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:23:09,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 277 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:23:09,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-04-05 04:23:09,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2022-04-05 04:23:09,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.46012832263978) internal successors, (1593), 1091 states have internal predecessors, (1593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:09,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1597 transitions. [2022-04-05 04:23:09,721 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1597 transitions. Word has length 167 [2022-04-05 04:23:09,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:23:09,721 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1597 transitions. [2022-04-05 04:23:09,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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) [2022-04-05 04:23:09,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1597 transitions. [2022-04-05 04:23:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-04-05 04:23:09,723 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:23:09,723 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:23:09,723 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:23:09,724 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:23:09,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:23:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2137854178, now seen corresponding path program 1 times [2022-04-05 04:23:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:23:09,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167831945] [2022-04-05 04:23:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:23:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:23:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:09,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:23:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-04-05 04:23:09,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:23:09,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167831945] [2022-04-05 04:23:09,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167831945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:23:09,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:23:09,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:23:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763066512] [2022-04-05 04:23:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:23:09,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:23:09,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:23:09,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:23:09,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:23:09,861 INFO L87 Difference]: Start difference. First operand 1096 states and 1597 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:11,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:13,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:14,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:15,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:23:15,016 INFO L93 Difference]: Finished difference Result 1124 states and 1632 transitions. [2022-04-05 04:23:15,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:23:15,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-04-05 04:23:15,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:23:15,020 INFO L225 Difference]: With dead ends: 1124 [2022-04-05 04:23:15,020 INFO L226 Difference]: Without dead ends: 1124 [2022-04-05 04:23:15,020 INFO L912 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 [2022-04-05 04:23:15,027 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 44 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:23:15,027 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 647 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 04:23:15,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-04-05 04:23:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1096. [2022-04-05 04:23:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.458295142071494) internal successors, (1591), 1091 states have internal predecessors, (1591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1595 transitions. [2022-04-05 04:23:15,041 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1595 transitions. Word has length 168 [2022-04-05 04:23:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:23:15,041 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1595 transitions. [2022-04-05 04:23:15,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1595 transitions. [2022-04-05 04:23:15,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-04-05 04:23:15,043 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:23:15,043 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:23:15,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:23:15,044 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:23:15,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:23:15,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1150460582, now seen corresponding path program 1 times [2022-04-05 04:23:15,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:23:15,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864447304] [2022-04-05 04:23:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:23:15,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:23:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:23:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 04:23:15,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:23:15,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864447304] [2022-04-05 04:23:15,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864447304] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:23:15,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:23:15,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:23:15,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992126041] [2022-04-05 04:23:15,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:23:15,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:23:15,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:23:15,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:23:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:23:15,180 INFO L87 Difference]: Start difference. First operand 1096 states and 1595 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) [2022-04-05 04:23:16,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:18,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:23:19,092 INFO L93 Difference]: Finished difference Result 1262 states and 1818 transitions. [2022-04-05 04:23:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:23:19,092 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 170 [2022-04-05 04:23:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:23:19,095 INFO L225 Difference]: With dead ends: 1262 [2022-04-05 04:23:19,095 INFO L226 Difference]: Without dead ends: 1262 [2022-04-05 04:23:19,095 INFO L912 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 [2022-04-05 04:23:19,095 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 131 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:23:19,095 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 412 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 04:23:19,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-04-05 04:23:19,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1096. [2022-04-05 04:23:19,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.454628780934922) internal successors, (1587), 1091 states have internal predecessors, (1587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:19,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1591 transitions. [2022-04-05 04:23:19,108 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1591 transitions. Word has length 170 [2022-04-05 04:23:19,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:23:19,108 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1591 transitions. [2022-04-05 04:23:19,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1591 transitions. [2022-04-05 04:23:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-04-05 04:23:19,110 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:23:19,110 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:23:19,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 04:23:19,111 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:23:19,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:23:19,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1610206959, now seen corresponding path program 1 times [2022-04-05 04:23:19,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:23:19,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676845177] [2022-04-05 04:23:19,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:23:19,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:23:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:23:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-05 04:23:19,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:23:19,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676845177] [2022-04-05 04:23:19,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676845177] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:23:19,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:23:19,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:23:19,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652040740] [2022-04-05 04:23:19,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:23:19,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:23:19,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:23:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:23:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:23:19,482 INFO L87 Difference]: Start difference. First operand 1096 states and 1591 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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) [2022-04-05 04:23:20,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:22,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:23,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:25,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:27,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:23:28,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:23:28,148 INFO L93 Difference]: Finished difference Result 1104 states and 1601 transitions. [2022-04-05 04:23:28,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:23:28,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 180 [2022-04-05 04:23:28,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:23:28,151 INFO L225 Difference]: With dead ends: 1104 [2022-04-05 04:23:28,151 INFO L226 Difference]: Without dead ends: 1096 [2022-04-05 04:23:28,151 INFO L912 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 [2022-04-05 04:23:28,151 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:23:28,151 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 951 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-04-05 04:23:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-04-05 04:23:28,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2022-04-05 04:23:28,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.453712190650779) internal successors, (1586), 1091 states have internal predecessors, (1586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:23:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1590 transitions. [2022-04-05 04:23:28,164 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1590 transitions. Word has length 180 [2022-04-05 04:23:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:23:28,164 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1590 transitions. [2022-04-05 04:23:28,164 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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) [2022-04-05 04:23:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1590 transitions. [2022-04-05 04:23:28,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-04-05 04:23:28,166 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:23:28,166 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:23:28,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 04:23:28,166 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:23:28,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:23:28,167 INFO L85 PathProgramCache]: Analyzing trace with hash -2025533776, now seen corresponding path program 1 times [2022-04-05 04:23:28,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:23:28,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146045783] [2022-04-05 04:23:28,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:23:28,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:23:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:23:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-04-05 04:23:29,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:23:29,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146045783] [2022-04-05 04:23:29,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146045783] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:23:29,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268401079] [2022-04-05 04:23:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:23:29,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:23:29,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:23:29,392 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) [2022-04-05 04:23:29,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 04:23:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:23:30,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 183 conjunts are in the unsatisfiable core [2022-04-05 04:23:30,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:23:31,552 INFO L356 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-04-05 04:23:31,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 25885 treesize of output 24049 [2022-04-05 04:23:31,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:23:31,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10871 treesize of output 1824