/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:40:50,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:40:50,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:40:50,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:40:50,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:40:50,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:40:50,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:40:50,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:40:50,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:40:50,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:40:50,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:40:50,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:40:50,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:40:50,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:40:50,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:40:50,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:40:50,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:40:50,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:40:50,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:40:50,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:40:50,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:40:50,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:40:50,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:40:50,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:40:50,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:40:50,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:40:50,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:40:50,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:40:50,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:40:50,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:40:50,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:40:50,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:40:50,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:40:50,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:40:50,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:40:50,420 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:40:50,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:40:50,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:40:50,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:40:50,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:40:50,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:40:50,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:40:50,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:40:50,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:40:50,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:40:50,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:40:50,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:40:50,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:40:50,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:40:50,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:40:50,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:40:50,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:40:50,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:40:50,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:40:50,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:40:50,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:40:50,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:40:50,425 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:40:50,425 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:40:50,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:40:50,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:40:50,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:40:50,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:40:50,627 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:40:50,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-02-24 00:40:50,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae030b6e/ab760bbe2bee461b811f418864f0bbd0/FLAG63120ad0c [2022-02-24 00:40:51,145 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:40:51,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-02-24 00:40:51,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae030b6e/ab760bbe2bee461b811f418864f0bbd0/FLAG63120ad0c [2022-02-24 00:40:51,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae030b6e/ab760bbe2bee461b811f418864f0bbd0 [2022-02-24 00:40:51,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:40:51,191 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:40:51,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:40:51,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:40:51,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:40:51,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ed4907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51, skipping insertion in model container [2022-02-24 00:40:51,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:40:51,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:40:51,586 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.02.i.cil-2.c[72502,72515] [2022-02-24 00:40:51,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:40:51,610 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:40:51,754 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.02.i.cil-2.c[72502,72515] [2022-02-24 00:40:51,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:40:51,773 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:40:51,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51 WrapperNode [2022-02-24 00:40:51,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:40:51,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:40:51,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:40:51,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:40:51,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:40:51,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:40:51,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:40:51,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:40:51,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (1/1) ... [2022-02-24 00:40:51,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:40:51,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:40:51,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 00:40:51,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 00:40:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:40:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:40:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:40:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:40:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:40:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:40:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:40:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:40:51,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:40:51,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:40:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:40:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:40:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:40:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:40:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:40:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:40:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:40:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:40:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:40:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:40:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:40:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:40:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:40:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:40:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:40:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:40:52,151 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:40:52,153 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:40:54,557 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:40:55,080 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:40:55,081 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:40:55,097 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:40:55,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:40:55,109 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:40:55,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:40:55 BoogieIcfgContainer [2022-02-24 00:40:55,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:40:55,112 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:40:55,113 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:40:55,114 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:40:55,116 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:40:55" (1/1) ... [2022-02-24 00:40:55,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:40:55 BasicIcfg [2022-02-24 00:40:55,170 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:40:55,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:40:55,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:40:55,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:40:55,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:40:51" (1/4) ... [2022-02-24 00:40:55,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9b99d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:40:55, skipping insertion in model container [2022-02-24 00:40:55,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:40:51" (2/4) ... [2022-02-24 00:40:55,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9b99d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:40:55, skipping insertion in model container [2022-02-24 00:40:55,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:40:55" (3/4) ... [2022-02-24 00:40:55,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9b99d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:40:55, skipping insertion in model container [2022-02-24 00:40:55,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:40:55" (4/4) ... [2022-02-24 00:40:55,178 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-2.cqvasr [2022-02-24 00:40:55,183 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:40:55,183 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:40:55,238 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:40:55,246 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:40:55,246 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:40:55,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 00:40:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-24 00:40:55,281 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:55,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:55,282 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:55,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1355699347, now seen corresponding path program 1 times [2022-02-24 00:40:55,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:55,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521087719] [2022-02-24 00:40:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:55,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:55,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521087719] [2022-02-24 00:40:55,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521087719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:55,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:55,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:55,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787399860] [2022-02-24 00:40:55,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:55,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:55,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:55,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:55,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:55,794 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 9.6) 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) [2022-02-24 00:40:57,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:58,376 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-02-24 00:40:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:58,378 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 [2022-02-24 00:40:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:58,387 INFO L225 Difference]: With dead ends: 324 [2022-02-24 00:40:58,387 INFO L226 Difference]: Without dead ends: 165 [2022-02-24 00:40:58,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:40:58,392 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:58,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:40:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-24 00:40:58,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-02-24 00:40:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-02-24 00:40:58,439 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-02-24 00:40:58,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:58,439 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-02-24 00:40:58,440 INFO L471 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) [2022-02-24 00:40:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-02-24 00:40:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:40:58,442 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:58,442 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:58,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:40:58,442 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:58,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:58,443 INFO L85 PathProgramCache]: Analyzing trace with hash -862448393, now seen corresponding path program 1 times [2022-02-24 00:40:58,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:58,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109465656] [2022-02-24 00:40:58,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:58,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:58,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:58,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:58,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109465656] [2022-02-24 00:40:58,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109465656] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:58,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:58,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:58,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633373514] [2022-02-24 00:40:58,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:58,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:58,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:58,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:58,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:58,704 INFO L87 Difference]: Start difference. First operand 148 states and 224 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) [2022-02-24 00:41:00,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:01,173 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-02-24 00:41:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:01,173 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 [2022-02-24 00:41:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:01,175 INFO L225 Difference]: With dead ends: 287 [2022-02-24 00:41:01,175 INFO L226 Difference]: Without dead ends: 165 [2022-02-24 00:41:01,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:01,177 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:01,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:01,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-24 00:41:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-02-24 00:41:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-02-24 00:41:01,189 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-02-24 00:41:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:01,189 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-02-24 00:41:01,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-02-24 00:41:01,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:41:01,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:01,196 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:01,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:41:01,197 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash 564743015, now seen corresponding path program 1 times [2022-02-24 00:41:01,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:01,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199828515] [2022-02-24 00:41:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:01,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:01,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:01,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:01,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199828515] [2022-02-24 00:41:01,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199828515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:01,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:01,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:01,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213317213] [2022-02-24 00:41:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:01,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:01,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:01,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:01,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:01,398 INFO L87 Difference]: Start difference. First operand 148 states and 223 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) [2022-02-24 00:41:03,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:03,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:03,823 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-02-24 00:41:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:03,824 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 [2022-02-24 00:41:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:03,825 INFO L225 Difference]: With dead ends: 286 [2022-02-24 00:41:03,825 INFO L226 Difference]: Without dead ends: 164 [2022-02-24 00:41:03,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:03,829 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:03,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-02-24 00:41:03,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-02-24 00:41:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:03,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-02-24 00:41:03,838 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-02-24 00:41:03,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:03,838 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-02-24 00:41:03,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:03,839 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-02-24 00:41:03,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:41:03,840 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:03,840 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:03,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:41:03,841 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:03,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:03,841 INFO L85 PathProgramCache]: Analyzing trace with hash 316443527, now seen corresponding path program 1 times [2022-02-24 00:41:03,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:03,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738854860] [2022-02-24 00:41:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:03,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:03,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:03,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:03,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738854860] [2022-02-24 00:41:03,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738854860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:03,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:03,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:03,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165811244] [2022-02-24 00:41:03,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:03,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:03,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:03,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:03,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:03,993 INFO L87 Difference]: Start difference. First operand 148 states and 222 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) [2022-02-24 00:41:06,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:06,561 INFO L93 Difference]: Finished difference Result 384 states and 584 transitions. [2022-02-24 00:41:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:06,561 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 [2022-02-24 00:41:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:06,563 INFO L225 Difference]: With dead ends: 384 [2022-02-24 00:41:06,563 INFO L226 Difference]: Without dead ends: 262 [2022-02-24 00:41:06,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:06,565 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 141 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:06,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:41:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-02-24 00:41:06,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 160. [2022-02-24 00:41:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5161290322580645) internal successors, (235), 155 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2022-02-24 00:41:06,583 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 66 [2022-02-24 00:41:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:06,583 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2022-02-24 00:41:06,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2022-02-24 00:41:06,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:41:06,591 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:06,591 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:06,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:41:06,591 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:06,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1779536153, now seen corresponding path program 1 times [2022-02-24 00:41:06,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:06,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722150125] [2022-02-24 00:41:06,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:06,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:06,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:06,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:06,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722150125] [2022-02-24 00:41:06,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722150125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:06,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:06,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:06,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216139717] [2022-02-24 00:41:06,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:06,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:06,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:06,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:06,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:06,732 INFO L87 Difference]: Start difference. First operand 160 states and 239 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) [2022-02-24 00:41:08,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:09,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:09,133 INFO L93 Difference]: Finished difference Result 309 states and 462 transitions. [2022-02-24 00:41:09,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:09,134 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 [2022-02-24 00:41:09,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:09,135 INFO L225 Difference]: With dead ends: 309 [2022-02-24 00:41:09,135 INFO L226 Difference]: Without dead ends: 175 [2022-02-24 00:41:09,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:09,136 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 19 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:09,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 457 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:09,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-02-24 00:41:09,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 160. [2022-02-24 00:41:09,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5096774193548388) internal successors, (234), 155 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2022-02-24 00:41:09,145 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 66 [2022-02-24 00:41:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:09,146 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2022-02-24 00:41:09,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:09,146 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2022-02-24 00:41:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:41:09,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:09,147 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:09,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:41:09,147 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2004125753, now seen corresponding path program 1 times [2022-02-24 00:41:09,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:09,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694748360] [2022-02-24 00:41:09,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:09,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:09,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:09,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694748360] [2022-02-24 00:41:09,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694748360] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:09,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:09,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:09,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271401907] [2022-02-24 00:41:09,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:09,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:09,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:09,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:09,263 INFO L87 Difference]: Start difference. First operand 160 states and 238 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) [2022-02-24 00:41:11,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:11,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:11,677 INFO L93 Difference]: Finished difference Result 307 states and 459 transitions. [2022-02-24 00:41:11,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:11,677 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 [2022-02-24 00:41:11,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:11,678 INFO L225 Difference]: With dead ends: 307 [2022-02-24 00:41:11,678 INFO L226 Difference]: Without dead ends: 173 [2022-02-24 00:41:11,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:11,680 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:11,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:11,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-02-24 00:41:11,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2022-02-24 00:41:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5032258064516129) internal successors, (233), 155 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:11,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 237 transitions. [2022-02-24 00:41:11,691 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 237 transitions. Word has length 66 [2022-02-24 00:41:11,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:11,691 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 237 transitions. [2022-02-24 00:41:11,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 237 transitions. [2022-02-24 00:41:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:41:11,692 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:11,692 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:11,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:41:11,693 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:11,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1564834441, now seen corresponding path program 1 times [2022-02-24 00:41:11,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:11,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102460428] [2022-02-24 00:41:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:11,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:11,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:11,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:11,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102460428] [2022-02-24 00:41:11,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102460428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:11,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:11,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:11,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745834119] [2022-02-24 00:41:11,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:11,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:11,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:11,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:11,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:11,808 INFO L87 Difference]: Start difference. First operand 160 states and 237 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:13,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:14,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:14,302 INFO L93 Difference]: Finished difference Result 396 states and 598 transitions. [2022-02-24 00:41:14,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:14,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-24 00:41:14,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:14,303 INFO L225 Difference]: With dead ends: 396 [2022-02-24 00:41:14,303 INFO L226 Difference]: Without dead ends: 262 [2022-02-24 00:41:14,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:14,305 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 139 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:14,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:41:14,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-02-24 00:41:14,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 161. [2022-02-24 00:41:14,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 156 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:14,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 237 transitions. [2022-02-24 00:41:14,312 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 237 transitions. Word has length 67 [2022-02-24 00:41:14,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:14,312 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 237 transitions. [2022-02-24 00:41:14,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:14,312 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 237 transitions. [2022-02-24 00:41:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:41:14,313 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:14,313 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:14,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:41:14,313 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:14,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:14,314 INFO L85 PathProgramCache]: Analyzing trace with hash 214053259, now seen corresponding path program 1 times [2022-02-24 00:41:14,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:14,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400305213] [2022-02-24 00:41:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:14,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:14,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:14,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400305213] [2022-02-24 00:41:14,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400305213] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:14,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:14,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:14,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036809812] [2022-02-24 00:41:14,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:14,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:14,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:14,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:14,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:14,446 INFO L87 Difference]: Start difference. First operand 161 states and 237 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:17,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:19,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:21,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:21,752 INFO L93 Difference]: Finished difference Result 309 states and 459 transitions. [2022-02-24 00:41:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:21,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-24 00:41:21,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:21,753 INFO L225 Difference]: With dead ends: 309 [2022-02-24 00:41:21,753 INFO L226 Difference]: Without dead ends: 174 [2022-02-24 00:41:21,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:21,755 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:21,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 343 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-02-24 00:41:21,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-02-24 00:41:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-02-24 00:41:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 156 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 236 transitions. [2022-02-24 00:41:21,760 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 236 transitions. Word has length 68 [2022-02-24 00:41:21,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:21,761 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 236 transitions. [2022-02-24 00:41:21,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 236 transitions. [2022-02-24 00:41:21,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 00:41:21,762 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:21,762 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:21,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:41:21,762 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:21,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:21,763 INFO L85 PathProgramCache]: Analyzing trace with hash -498280966, now seen corresponding path program 1 times [2022-02-24 00:41:21,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:21,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394540060] [2022-02-24 00:41:21,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:21,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:21,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:21,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:21,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394540060] [2022-02-24 00:41:21,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394540060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:21,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:21,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:21,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326339179] [2022-02-24 00:41:21,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:21,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:21,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:21,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:21,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:21,887 INFO L87 Difference]: Start difference. First operand 161 states and 236 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:23,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:24,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:24,262 INFO L93 Difference]: Finished difference Result 299 states and 445 transitions. [2022-02-24 00:41:24,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:24,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-24 00:41:24,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:24,263 INFO L225 Difference]: With dead ends: 299 [2022-02-24 00:41:24,263 INFO L226 Difference]: Without dead ends: 164 [2022-02-24 00:41:24,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:24,264 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:24,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:24,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-02-24 00:41:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-02-24 00:41:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4807692307692308) internal successors, (231), 156 states have internal predecessors, (231), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 235 transitions. [2022-02-24 00:41:24,270 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 235 transitions. Word has length 69 [2022-02-24 00:41:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:24,270 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 235 transitions. [2022-02-24 00:41:24,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 235 transitions. [2022-02-24 00:41:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 00:41:24,271 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:24,271 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:24,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:41:24,271 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:24,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1119257833, now seen corresponding path program 1 times [2022-02-24 00:41:24,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:24,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411366280] [2022-02-24 00:41:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:24,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:24,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:24,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:24,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411366280] [2022-02-24 00:41:24,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411366280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:24,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:24,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:24,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318155016] [2022-02-24 00:41:24,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:24,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:24,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:24,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:24,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:24,398 INFO L87 Difference]: Start difference. First operand 161 states and 235 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:27,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:29,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:30,803 INFO L93 Difference]: Finished difference Result 410 states and 614 transitions. [2022-02-24 00:41:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-24 00:41:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:30,805 INFO L225 Difference]: With dead ends: 410 [2022-02-24 00:41:30,805 INFO L226 Difference]: Without dead ends: 275 [2022-02-24 00:41:30,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:30,806 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 108 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:30,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 313 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 00:41:30,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-02-24 00:41:30,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 204. [2022-02-24 00:41:30,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.5527638190954773) internal successors, (309), 199 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:30,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 313 transitions. [2022-02-24 00:41:30,813 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 313 transitions. Word has length 69 [2022-02-24 00:41:30,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:30,813 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 313 transitions. [2022-02-24 00:41:30,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 313 transitions. [2022-02-24 00:41:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-24 00:41:30,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:30,814 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:30,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:41:30,815 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:30,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash 338203677, now seen corresponding path program 1 times [2022-02-24 00:41:30,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:30,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713309185] [2022-02-24 00:41:30,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:30,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:30,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:30,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713309185] [2022-02-24 00:41:30,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713309185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:30,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:30,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:30,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433047355] [2022-02-24 00:41:30,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:30,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:30,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:30,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:30,921 INFO L87 Difference]: Start difference. First operand 204 states and 313 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:32,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:33,318 INFO L93 Difference]: Finished difference Result 426 states and 662 transitions. [2022-02-24 00:41:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:33,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-24 00:41:33,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:33,320 INFO L225 Difference]: With dead ends: 426 [2022-02-24 00:41:33,320 INFO L226 Difference]: Without dead ends: 248 [2022-02-24 00:41:33,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:33,321 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 34 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:33,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 473 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-02-24 00:41:33,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 226. [2022-02-24 00:41:33,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.5610859728506787) internal successors, (345), 221 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) [2022-02-24 00:41:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 349 transitions. [2022-02-24 00:41:33,328 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 349 transitions. Word has length 70 [2022-02-24 00:41:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:33,329 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 349 transitions. [2022-02-24 00:41:33,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 349 transitions. [2022-02-24 00:41:33,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-24 00:41:33,330 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:33,330 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:33,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:41:33,330 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:33,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1716885067, now seen corresponding path program 1 times [2022-02-24 00:41:33,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:33,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689431139] [2022-02-24 00:41:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:33,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:33,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:33,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689431139] [2022-02-24 00:41:33,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689431139] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:33,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:33,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:33,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749198594] [2022-02-24 00:41:33,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:33,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:33,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:33,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:33,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:33,464 INFO L87 Difference]: Start difference. First operand 226 states and 349 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:35,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:37,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:39,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:41,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:41,480 INFO L93 Difference]: Finished difference Result 448 states and 697 transitions. [2022-02-24 00:41:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:41,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-24 00:41:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:41,482 INFO L225 Difference]: With dead ends: 448 [2022-02-24 00:41:41,482 INFO L226 Difference]: Without dead ends: 248 [2022-02-24 00:41:41,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:41,483 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 39 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:41,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 473 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 384 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-24 00:41:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-02-24 00:41:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 226. [2022-02-24 00:41:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.5565610859728507) internal successors, (344), 221 states have internal predecessors, (344), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 348 transitions. [2022-02-24 00:41:41,494 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 348 transitions. Word has length 83 [2022-02-24 00:41:41,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:41,494 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 348 transitions. [2022-02-24 00:41:41,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:41,494 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 348 transitions. [2022-02-24 00:41:41,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:41:41,495 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:41,495 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:41,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:41:41,495 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:41,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:41,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1866734691, now seen corresponding path program 1 times [2022-02-24 00:41:41,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:41,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117335379] [2022-02-24 00:41:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:41,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:41,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:41:41,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:41,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117335379] [2022-02-24 00:41:41,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117335379] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:41,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:41,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:41,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080931132] [2022-02-24 00:41:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:41,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:41,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:41,616 INFO L87 Difference]: Start difference. First operand 226 states and 348 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:42,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:44,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:46,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:48,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:49,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:49,255 INFO L93 Difference]: Finished difference Result 455 states and 707 transitions. [2022-02-24 00:41:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:49,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 00:41:49,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:49,257 INFO L225 Difference]: With dead ends: 455 [2022-02-24 00:41:49,257 INFO L226 Difference]: Without dead ends: 255 [2022-02-24 00:41:49,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:49,258 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:49,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 544 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 00:41:49,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-24 00:41:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 242. [2022-02-24 00:41:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.5527426160337552) internal successors, (368), 237 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 372 transitions. [2022-02-24 00:41:49,264 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 372 transitions. Word has length 84 [2022-02-24 00:41:49,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:49,264 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 372 transitions. [2022-02-24 00:41:49,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 372 transitions. [2022-02-24 00:41:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:41:49,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:49,265 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:49,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:41:49,265 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:49,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2086442781, now seen corresponding path program 1 times [2022-02-24 00:41:49,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:49,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634996803] [2022-02-24 00:41:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:49,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:49,388 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:49,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:49,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634996803] [2022-02-24 00:41:49,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634996803] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:49,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:49,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:49,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988851923] [2022-02-24 00:41:49,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:49,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:49,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:49,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:49,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:49,390 INFO L87 Difference]: Start difference. First operand 242 states and 372 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:51,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:53,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:54,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:56,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:57,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:57,112 INFO L93 Difference]: Finished difference Result 558 states and 868 transitions. [2022-02-24 00:41:57,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:57,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 00:41:57,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:57,114 INFO L225 Difference]: With dead ends: 558 [2022-02-24 00:41:57,114 INFO L226 Difference]: Without dead ends: 342 [2022-02-24 00:41:57,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:57,116 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 134 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:57,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 316 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 00:41:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-02-24 00:41:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 247. [2022-02-24 00:41:57,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 242 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:57,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 379 transitions. [2022-02-24 00:41:57,124 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 379 transitions. Word has length 84 [2022-02-24 00:41:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:57,124 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 379 transitions. [2022-02-24 00:41:57,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 379 transitions. [2022-02-24 00:41:57,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:41:57,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:57,126 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:57,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:41:57,126 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash -458785789, now seen corresponding path program 1 times [2022-02-24 00:41:57,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:57,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940533264] [2022-02-24 00:41:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:57,244 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:41:57,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:57,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940533264] [2022-02-24 00:41:57,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940533264] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:57,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:57,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:57,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286055474] [2022-02-24 00:41:57,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:57,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:57,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:57,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:57,246 INFO L87 Difference]: Start difference. First operand 247 states and 379 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:59,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:59,612 INFO L93 Difference]: Finished difference Result 487 states and 754 transitions. [2022-02-24 00:41:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:59,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 00:41:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:59,614 INFO L225 Difference]: With dead ends: 487 [2022-02-24 00:41:59,614 INFO L226 Difference]: Without dead ends: 266 [2022-02-24 00:41:59,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:59,615 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 36 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:59,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-24 00:41:59,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 247. [2022-02-24 00:41:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5454545454545454) internal successors, (374), 242 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 378 transitions. [2022-02-24 00:41:59,622 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 378 transitions. Word has length 84 [2022-02-24 00:41:59,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:59,622 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 378 transitions. [2022-02-24 00:41:59,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:59,622 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 378 transitions. [2022-02-24 00:41:59,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-24 00:41:59,623 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:59,623 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:59,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:41:59,623 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:59,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1191609488, now seen corresponding path program 1 times [2022-02-24 00:41:59,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:59,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544822626] [2022-02-24 00:41:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:59,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-24 00:41:59,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:59,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544822626] [2022-02-24 00:41:59,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544822626] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:59,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:59,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:41:59,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133905692] [2022-02-24 00:41:59,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:59,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:41:59,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:59,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:41:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:41:59,747 INFO L87 Difference]: Start difference. First operand 247 states and 378 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:01,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:02,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:02,103 INFO L93 Difference]: Finished difference Result 477 states and 738 transitions. [2022-02-24 00:42:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 00:42:02,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-24 00:42:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:02,104 INFO L225 Difference]: With dead ends: 477 [2022-02-24 00:42:02,105 INFO L226 Difference]: Without dead ends: 256 [2022-02-24 00:42:02,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:42:02,105 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:02,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:42:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-02-24 00:42:02,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-02-24 00:42:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5338645418326693) internal successors, (385), 251 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2022-02-24 00:42:02,112 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 85 [2022-02-24 00:42:02,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:02,112 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2022-02-24 00:42:02,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:02,113 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2022-02-24 00:42:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-24 00:42:02,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:02,114 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:02,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:42:02,114 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1818163604, now seen corresponding path program 1 times [2022-02-24 00:42:02,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:02,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725105366] [2022-02-24 00:42:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:02,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:02,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:02,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725105366] [2022-02-24 00:42:02,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725105366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:02,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:02,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:02,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688799283] [2022-02-24 00:42:02,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:02,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:02,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:02,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:02,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:02,222 INFO L87 Difference]: Start difference. First operand 256 states and 389 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:04,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:04,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:04,720 INFO L93 Difference]: Finished difference Result 590 states and 903 transitions. [2022-02-24 00:42:04,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:04,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-02-24 00:42:04,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:04,722 INFO L225 Difference]: With dead ends: 590 [2022-02-24 00:42:04,722 INFO L226 Difference]: Without dead ends: 360 [2022-02-24 00:42:04,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:04,723 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 137 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:04,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:42:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-24 00:42:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 256. [2022-02-24 00:42:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5179282868525896) internal successors, (381), 251 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 385 transitions. [2022-02-24 00:42:04,730 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 385 transitions. Word has length 87 [2022-02-24 00:42:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:04,731 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 385 transitions. [2022-02-24 00:42:04,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 385 transitions. [2022-02-24 00:42:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-24 00:42:04,732 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:04,732 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:04,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:42:04,732 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:04,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash 989898955, now seen corresponding path program 1 times [2022-02-24 00:42:04,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:04,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053342696] [2022-02-24 00:42:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:04,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:42:04,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:04,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053342696] [2022-02-24 00:42:04,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053342696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:04,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:04,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:04,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12010274] [2022-02-24 00:42:04,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:04,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:04,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:04,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:04,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:04,841 INFO L87 Difference]: Start difference. First operand 256 states and 385 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) [2022-02-24 00:42:06,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:07,216 INFO L93 Difference]: Finished difference Result 504 states and 764 transitions. [2022-02-24 00:42:07,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:07,216 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 88 [2022-02-24 00:42:07,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:07,218 INFO L225 Difference]: With dead ends: 504 [2022-02-24 00:42:07,218 INFO L226 Difference]: Without dead ends: 274 [2022-02-24 00:42:07,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:07,219 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 35 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:07,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 481 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-02-24 00:42:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 256. [2022-02-24 00:42:07,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5139442231075697) internal successors, (380), 251 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:07,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 384 transitions. [2022-02-24 00:42:07,229 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 384 transitions. Word has length 88 [2022-02-24 00:42:07,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:07,229 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 384 transitions. [2022-02-24 00:42:07,229 INFO L471 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) [2022-02-24 00:42:07,229 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 384 transitions. [2022-02-24 00:42:07,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-24 00:42:07,230 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:07,230 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:07,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:42:07,231 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:07,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:07,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176068, now seen corresponding path program 1 times [2022-02-24 00:42:07,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:07,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713424925] [2022-02-24 00:42:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:07,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:07,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:42:07,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:07,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713424925] [2022-02-24 00:42:07,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713424925] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:07,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:07,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:07,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712598300] [2022-02-24 00:42:07,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:07,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:07,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:07,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:07,360 INFO L87 Difference]: Start difference. First operand 256 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:09,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:09,910 INFO L93 Difference]: Finished difference Result 590 states and 893 transitions. [2022-02-24 00:42:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:09,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-02-24 00:42:09,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:09,912 INFO L225 Difference]: With dead ends: 590 [2022-02-24 00:42:09,912 INFO L226 Difference]: Without dead ends: 358 [2022-02-24 00:42:09,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:09,913 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 107 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:09,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 326 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:42:09,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-02-24 00:42:09,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 280. [2022-02-24 00:42:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5527272727272727) internal successors, (427), 275 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 431 transitions. [2022-02-24 00:42:09,920 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 431 transitions. Word has length 92 [2022-02-24 00:42:09,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:09,920 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 431 transitions. [2022-02-24 00:42:09,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:09,921 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 431 transitions. [2022-02-24 00:42:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-02-24 00:42:09,922 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:09,922 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:09,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:42:09,922 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:09,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:09,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1099971198, now seen corresponding path program 1 times [2022-02-24 00:42:09,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:09,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924771706] [2022-02-24 00:42:09,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:09,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:10,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:42:10,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:10,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924771706] [2022-02-24 00:42:10,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924771706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:10,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:10,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:10,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281284931] [2022-02-24 00:42:10,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:10,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:10,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:10,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:10,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:10,070 INFO L87 Difference]: Start difference. First operand 280 states and 431 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) [2022-02-24 00:42:13,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:15,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:17,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:17,602 INFO L93 Difference]: Finished difference Result 651 states and 1006 transitions. [2022-02-24 00:42:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:17,602 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 120 [2022-02-24 00:42:17,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:17,604 INFO L225 Difference]: With dead ends: 651 [2022-02-24 00:42:17,604 INFO L226 Difference]: Without dead ends: 397 [2022-02-24 00:42:17,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:17,605 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 115 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 49 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:17,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 342 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 00:42:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-02-24 00:42:17,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 312. [2022-02-24 00:42:17,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 307 states have (on average 1.5635179153094463) internal successors, (480), 307 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 484 transitions. [2022-02-24 00:42:17,613 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 484 transitions. Word has length 120 [2022-02-24 00:42:17,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:17,613 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 484 transitions. [2022-02-24 00:42:17,613 INFO L471 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) [2022-02-24 00:42:17,613 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 484 transitions. [2022-02-24 00:42:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 00:42:17,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:17,615 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:17,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:42:17,615 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1440427339, now seen corresponding path program 1 times [2022-02-24 00:42:17,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:17,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212008929] [2022-02-24 00:42:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:17,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-24 00:42:17,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:17,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212008929] [2022-02-24 00:42:17,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212008929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:17,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:17,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:17,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975462709] [2022-02-24 00:42:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:17,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:17,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:17,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:17,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:17,725 INFO L87 Difference]: Start difference. First operand 312 states and 484 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:19,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:20,161 INFO L93 Difference]: Finished difference Result 666 states and 1030 transitions. [2022-02-24 00:42:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-24 00:42:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:20,163 INFO L225 Difference]: With dead ends: 666 [2022-02-24 00:42:20,163 INFO L226 Difference]: Without dead ends: 380 [2022-02-24 00:42:20,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:20,165 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 137 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:20,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 318 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-24 00:42:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 312. [2022-02-24 00:42:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 307 states have (on average 1.5472312703583062) internal successors, (475), 307 states have internal predecessors, (475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 479 transitions. [2022-02-24 00:42:20,172 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 479 transitions. Word has length 125 [2022-02-24 00:42:20,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:20,173 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 479 transitions. [2022-02-24 00:42:20,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 479 transitions. [2022-02-24 00:42:20,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:42:20,174 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:20,174 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:20,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:42:20,174 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:20,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:20,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1373336550, now seen corresponding path program 1 times [2022-02-24 00:42:20,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:20,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475990144] [2022-02-24 00:42:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:20,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:42:20,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:20,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475990144] [2022-02-24 00:42:20,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475990144] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:20,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:20,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:42:20,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92929571] [2022-02-24 00:42:20,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:20,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:42:20,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:20,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:42:20,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:20,316 INFO L87 Difference]: Start difference. First operand 312 states and 479 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 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) [2022-02-24 00:42:22,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:22,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:22,740 INFO L93 Difference]: Finished difference Result 879 states and 1372 transitions. [2022-02-24 00:42:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:42:22,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 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 132 [2022-02-24 00:42:22,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:22,745 INFO L225 Difference]: With dead ends: 879 [2022-02-24 00:42:22,745 INFO L226 Difference]: Without dead ends: 593 [2022-02-24 00:42:22,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:22,746 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:22,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:22,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-02-24 00:42:22,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2022-02-24 00:42:22,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 588 states have (on average 1.554421768707483) internal successors, (914), 588 states have internal predecessors, (914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 918 transitions. [2022-02-24 00:42:22,758 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 918 transitions. Word has length 132 [2022-02-24 00:42:22,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:22,758 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 918 transitions. [2022-02-24 00:42:22,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 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) [2022-02-24 00:42:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 918 transitions. [2022-02-24 00:42:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:42:22,760 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:22,760 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:22,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:42:22,760 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:22,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:22,761 INFO L85 PathProgramCache]: Analyzing trace with hash 348642629, now seen corresponding path program 1 times [2022-02-24 00:42:22,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:22,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197953683] [2022-02-24 00:42:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:22,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:42:22,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:22,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197953683] [2022-02-24 00:42:22,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197953683] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:22,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:22,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:42:22,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619651085] [2022-02-24 00:42:22,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:22,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:42:22,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:42:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:22,867 INFO L87 Difference]: Start difference. First operand 593 states and 918 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:24,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:25,183 INFO L93 Difference]: Finished difference Result 1399 states and 2178 transitions. [2022-02-24 00:42:25,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:42:25,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-24 00:42:25,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:25,187 INFO L225 Difference]: With dead ends: 1399 [2022-02-24 00:42:25,187 INFO L226 Difference]: Without dead ends: 832 [2022-02-24 00:42:25,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:25,189 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:25,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:42:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-02-24 00:42:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2022-02-24 00:42:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.5489721886336154) internal successors, (1281), 827 states have internal predecessors, (1281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:25,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1285 transitions. [2022-02-24 00:42:25,205 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1285 transitions. Word has length 132 [2022-02-24 00:42:25,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:25,206 INFO L470 AbstractCegarLoop]: Abstraction has 832 states and 1285 transitions. [2022-02-24 00:42:25,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1285 transitions. [2022-02-24 00:42:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:42:25,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:25,208 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:25,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:42:25,208 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:25,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:25,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2018872788, now seen corresponding path program 1 times [2022-02-24 00:42:25,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:25,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272117566] [2022-02-24 00:42:25,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:25,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:25,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-24 00:42:25,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:25,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272117566] [2022-02-24 00:42:25,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272117566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:25,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:25,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:42:25,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276108691] [2022-02-24 00:42:25,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:25,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:42:25,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:25,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:42:25,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:25,314 INFO L87 Difference]: Start difference. First operand 832 states and 1285 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:27,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:27,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:27,589 INFO L93 Difference]: Finished difference Result 1665 states and 2577 transitions. [2022-02-24 00:42:27,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:42:27,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-24 00:42:27,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:27,593 INFO L225 Difference]: With dead ends: 1665 [2022-02-24 00:42:27,593 INFO L226 Difference]: Without dead ends: 859 [2022-02-24 00:42:27,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:27,595 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:27,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:42:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-02-24 00:42:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2022-02-24 00:42:27,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 854 states have (on average 1.540983606557377) internal successors, (1316), 854 states have internal predecessors, (1316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1320 transitions. [2022-02-24 00:42:27,612 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1320 transitions. Word has length 133 [2022-02-24 00:42:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:27,612 INFO L470 AbstractCegarLoop]: Abstraction has 859 states and 1320 transitions. [2022-02-24 00:42:27,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1320 transitions. [2022-02-24 00:42:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:42:27,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:27,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:27,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:42:27,615 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash -942319379, now seen corresponding path program 1 times [2022-02-24 00:42:27,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:27,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931460302] [2022-02-24 00:42:27,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:27,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:27,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:27,702 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-24 00:42:27,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:27,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931460302] [2022-02-24 00:42:27,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931460302] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:27,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:27,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:42:27,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997097577] [2022-02-24 00:42:27,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:27,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:42:27,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:27,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:42:27,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:27,704 INFO L87 Difference]: Start difference. First operand 859 states and 1320 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:29,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:29,981 INFO L93 Difference]: Finished difference Result 1694 states and 2613 transitions. [2022-02-24 00:42:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:42:29,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-24 00:42:29,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:29,984 INFO L225 Difference]: With dead ends: 1694 [2022-02-24 00:42:29,984 INFO L226 Difference]: Without dead ends: 861 [2022-02-24 00:42:29,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:42:29,986 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:29,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:42:29,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-02-24 00:42:29,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2022-02-24 00:42:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5397196261682242) internal successors, (1318), 856 states have internal predecessors, (1318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1322 transitions. [2022-02-24 00:42:30,003 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1322 transitions. Word has length 133 [2022-02-24 00:42:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:30,003 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1322 transitions. [2022-02-24 00:42:30,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1322 transitions. [2022-02-24 00:42:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-24 00:42:30,005 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:30,006 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-24 00:42:30,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:42:30,006 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:30,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:30,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1318648105, now seen corresponding path program 1 times [2022-02-24 00:42:30,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:30,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408514249] [2022-02-24 00:42:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:30,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:30,130 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-24 00:42:30,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:30,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408514249] [2022-02-24 00:42:30,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408514249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:30,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:30,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:30,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878036086] [2022-02-24 00:42:30,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:30,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:30,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:30,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:30,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:30,133 INFO L87 Difference]: Start difference. First operand 861 states and 1322 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:32,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:32,708 INFO L93 Difference]: Finished difference Result 1799 states and 2746 transitions. [2022-02-24 00:42:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:32,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-24 00:42:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:32,711 INFO L225 Difference]: With dead ends: 1799 [2022-02-24 00:42:32,711 INFO L226 Difference]: Without dead ends: 966 [2022-02-24 00:42:32,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:32,715 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 97 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:32,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 624 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-24 00:42:32,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-02-24 00:42:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 861. [2022-02-24 00:42:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5373831775700935) internal successors, (1316), 856 states have internal predecessors, (1316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1320 transitions. [2022-02-24 00:42:32,733 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1320 transitions. Word has length 196 [2022-02-24 00:42:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:32,733 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1320 transitions. [2022-02-24 00:42:32,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1320 transitions. [2022-02-24 00:42:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-24 00:42:32,736 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:32,736 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:32,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:42:32,736 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:32,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1012366808, now seen corresponding path program 1 times [2022-02-24 00:42:32,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:32,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93876402] [2022-02-24 00:42:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:32,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-24 00:42:32,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:32,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93876402] [2022-02-24 00:42:32,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93876402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:32,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:32,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:32,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474916536] [2022-02-24 00:42:32,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:32,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:32,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:32,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:32,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:32,871 INFO L87 Difference]: Start difference. First operand 861 states and 1320 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:34,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:35,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:35,319 INFO L93 Difference]: Finished difference Result 1890 states and 2869 transitions. [2022-02-24 00:42:35,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:35,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-02-24 00:42:35,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:35,323 INFO L225 Difference]: With dead ends: 1890 [2022-02-24 00:42:35,323 INFO L226 Difference]: Without dead ends: 1057 [2022-02-24 00:42:35,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:35,324 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 123 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:35,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:35,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-02-24 00:42:35,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 861. [2022-02-24 00:42:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.52803738317757) internal successors, (1308), 856 states have internal predecessors, (1308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:35,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1312 transitions. [2022-02-24 00:42:35,342 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1312 transitions. Word has length 197 [2022-02-24 00:42:35,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:35,342 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1312 transitions. [2022-02-24 00:42:35,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1312 transitions. [2022-02-24 00:42:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-02-24 00:42:35,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:35,345 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:35,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:42:35,345 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:35,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:35,345 INFO L85 PathProgramCache]: Analyzing trace with hash -690004383, now seen corresponding path program 1 times [2022-02-24 00:42:35,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:35,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746085113] [2022-02-24 00:42:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:35,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:42:35,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:35,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746085113] [2022-02-24 00:42:35,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746085113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:35,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:35,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:35,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460641891] [2022-02-24 00:42:35,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:35,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:35,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:35,473 INFO L87 Difference]: Start difference. First operand 861 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:37,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:37,933 INFO L93 Difference]: Finished difference Result 1890 states and 2853 transitions. [2022-02-24 00:42:37,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:37,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 209 [2022-02-24 00:42:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:37,937 INFO L225 Difference]: With dead ends: 1890 [2022-02-24 00:42:37,937 INFO L226 Difference]: Without dead ends: 1057 [2022-02-24 00:42:37,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:37,939 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 129 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:37,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 318 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:37,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-02-24 00:42:37,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 861. [2022-02-24 00:42:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5186915887850467) internal successors, (1300), 856 states have internal predecessors, (1300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1304 transitions. [2022-02-24 00:42:37,962 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1304 transitions. Word has length 209 [2022-02-24 00:42:37,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:37,963 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1304 transitions. [2022-02-24 00:42:37,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1304 transitions. [2022-02-24 00:42:37,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-24 00:42:37,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:37,965 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:37,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:42:37,965 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:37,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:37,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1794649539, now seen corresponding path program 1 times [2022-02-24 00:42:37,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:37,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302667864] [2022-02-24 00:42:37,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:37,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:38,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:38,109 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:42:38,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:38,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302667864] [2022-02-24 00:42:38,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302667864] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:38,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:38,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:38,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445505647] [2022-02-24 00:42:38,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:38,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:38,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:38,111 INFO L87 Difference]: Start difference. First operand 861 states and 1304 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:40,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:40,632 INFO L93 Difference]: Finished difference Result 1785 states and 2692 transitions. [2022-02-24 00:42:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:40,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 210 [2022-02-24 00:42:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:40,636 INFO L225 Difference]: With dead ends: 1785 [2022-02-24 00:42:40,636 INFO L226 Difference]: Without dead ends: 952 [2022-02-24 00:42:40,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:40,643 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 93 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:40,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 610 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:42:40,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-02-24 00:42:40,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 861. [2022-02-24 00:42:40,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.516355140186916) internal successors, (1298), 856 states have internal predecessors, (1298), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:40,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1302 transitions. [2022-02-24 00:42:40,673 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1302 transitions. Word has length 210 [2022-02-24 00:42:40,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:40,673 INFO L470 AbstractCegarLoop]: Abstraction has 861 states and 1302 transitions. [2022-02-24 00:42:40,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:40,674 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1302 transitions. [2022-02-24 00:42:40,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-24 00:42:40,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:40,676 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-24 00:42:40,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:42:40,677 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:40,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash 554678676, now seen corresponding path program 1 times [2022-02-24 00:42:40,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:40,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833263404] [2022-02-24 00:42:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:40,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:40,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 256 proven. 33 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-02-24 00:42:40,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:40,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833263404] [2022-02-24 00:42:40,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833263404] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:42:40,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970935814] [2022-02-24 00:42:40,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:40,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:42:40,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:42:40,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:42:40,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 00:42:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:41,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-24 00:42:41,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:42:41,644 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:42:41,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:42:41,725 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:42:41,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:42:41,794 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:42:41,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:42:41,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:42:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 264 proven. 30 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-02-24 00:42:42,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:42:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:42:42,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970935814] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:42:42,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:42:42,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 12 [2022-02-24 00:42:42,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258654703] [2022-02-24 00:42:42,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:42,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:42:42,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:42,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:42:42,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-24 00:42:42,312 INFO L87 Difference]: Start difference. First operand 861 states and 1302 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:44,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:44,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:44,623 INFO L93 Difference]: Finished difference Result 1974 states and 2977 transitions. [2022-02-24 00:42:44,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:42:44,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-24 00:42:44,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:44,627 INFO L225 Difference]: With dead ends: 1974 [2022-02-24 00:42:44,627 INFO L226 Difference]: Without dead ends: 1141 [2022-02-24 00:42:44,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-02-24 00:42:44,629 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 99 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:44,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 387 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:42:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-02-24 00:42:44,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 921. [2022-02-24 00:42:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4989082969432315) internal successors, (1373), 916 states have internal predecessors, (1373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:44,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1377 transitions. [2022-02-24 00:42:44,649 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1377 transitions. Word has length 213 [2022-02-24 00:42:44,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:44,650 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1377 transitions. [2022-02-24 00:42:44,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:44,650 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1377 transitions. [2022-02-24 00:42:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-24 00:42:44,652 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:44,652 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:44,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-24 00:42:44,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:42:44,864 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:44,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:44,864 INFO L85 PathProgramCache]: Analyzing trace with hash -133422725, now seen corresponding path program 1 times [2022-02-24 00:42:44,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:44,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767840917] [2022-02-24 00:42:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:44,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:42:45,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:45,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767840917] [2022-02-24 00:42:45,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767840917] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:45,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:45,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:45,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038782939] [2022-02-24 00:42:45,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:45,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:45,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:45,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:45,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:45,016 INFO L87 Difference]: Start difference. First operand 921 states and 1377 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:46,386 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 [] [2022-02-24 00:42:48,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:50,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:52,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:52,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:52,906 INFO L93 Difference]: Finished difference Result 1980 states and 2944 transitions. [2022-02-24 00:42:52,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:52,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-02-24 00:42:52,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:52,909 INFO L225 Difference]: With dead ends: 1980 [2022-02-24 00:42:52,909 INFO L226 Difference]: Without dead ends: 1087 [2022-02-24 00:42:52,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:42:52,911 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 57 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:52,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 334 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 445 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-24 00:42:52,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-02-24 00:42:52,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 921. [2022-02-24 00:42:52,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4836244541484715) internal successors, (1359), 916 states have internal predecessors, (1359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:52,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1363 transitions. [2022-02-24 00:42:52,931 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1363 transitions. Word has length 214 [2022-02-24 00:42:52,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:52,931 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1363 transitions. [2022-02-24 00:42:52,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1363 transitions. [2022-02-24 00:42:52,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-24 00:42:52,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:52,934 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-24 00:42:52,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:42:52,934 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:52,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:52,934 INFO L85 PathProgramCache]: Analyzing trace with hash -168214403, now seen corresponding path program 1 times [2022-02-24 00:42:52,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:52,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268332141] [2022-02-24 00:42:52,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:52,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:42:53,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:53,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268332141] [2022-02-24 00:42:53,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268332141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:53,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:53,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:53,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982585171] [2022-02-24 00:42:53,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:53,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:53,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:53,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:53,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:53,068 INFO L87 Difference]: Start difference. First operand 921 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:54,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:56,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:58,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:00,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:00,821 INFO L93 Difference]: Finished difference Result 1885 states and 2784 transitions. [2022-02-24 00:43:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:00,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-02-24 00:43:00,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:00,825 INFO L225 Difference]: With dead ends: 1885 [2022-02-24 00:43:00,825 INFO L226 Difference]: Without dead ends: 992 [2022-02-24 00:43:00,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:00,827 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 80 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:00,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 592 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 553 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 00:43:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-02-24 00:43:00,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 921. [2022-02-24 00:43:00,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4814410480349345) internal successors, (1357), 916 states have internal predecessors, (1357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1361 transitions. [2022-02-24 00:43:00,846 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1361 transitions. Word has length 214 [2022-02-24 00:43:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:00,847 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1361 transitions. [2022-02-24 00:43:00,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1361 transitions. [2022-02-24 00:43:00,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-02-24 00:43:00,849 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:00,849 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-24 00:43:00,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:43:00,850 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:00,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:00,850 INFO L85 PathProgramCache]: Analyzing trace with hash -443142085, now seen corresponding path program 1 times [2022-02-24 00:43:00,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:00,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506814483] [2022-02-24 00:43:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:00,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:00,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:00,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506814483] [2022-02-24 00:43:00,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506814483] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:00,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:00,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:00,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071458573] [2022-02-24 00:43:00,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:00,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:00,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:00,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:00,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:00,982 INFO L87 Difference]: Start difference. First operand 921 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:02,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:03,413 INFO L93 Difference]: Finished difference Result 2106 states and 3116 transitions. [2022-02-24 00:43:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:03,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-02-24 00:43:03,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:03,418 INFO L225 Difference]: With dead ends: 2106 [2022-02-24 00:43:03,418 INFO L226 Difference]: Without dead ends: 1213 [2022-02-24 00:43:03,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:03,420 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 116 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:03,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 334 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:03,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2022-02-24 00:43:03,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 984. [2022-02-24 00:43:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 979 states have (on average 1.4627170582226763) internal successors, (1432), 979 states have internal predecessors, (1432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1436 transitions. [2022-02-24 00:43:03,442 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1436 transitions. Word has length 215 [2022-02-24 00:43:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:03,442 INFO L470 AbstractCegarLoop]: Abstraction has 984 states and 1436 transitions. [2022-02-24 00:43:03,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1436 transitions. [2022-02-24 00:43:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-02-24 00:43:03,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:03,445 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:03,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 00:43:03,445 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:03,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:03,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1150066281, now seen corresponding path program 1 times [2022-02-24 00:43:03,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:03,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628188034] [2022-02-24 00:43:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:03,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:03,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:03,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628188034] [2022-02-24 00:43:03,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628188034] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:03,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:03,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:03,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694478363] [2022-02-24 00:43:03,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:03,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:03,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:03,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:03,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:03,597 INFO L87 Difference]: Start difference. First operand 984 states and 1436 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:05,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:06,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:06,028 INFO L93 Difference]: Finished difference Result 2192 states and 3198 transitions. [2022-02-24 00:43:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:06,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-02-24 00:43:06,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:06,032 INFO L225 Difference]: With dead ends: 2192 [2022-02-24 00:43:06,032 INFO L226 Difference]: Without dead ends: 1236 [2022-02-24 00:43:06,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:06,033 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:06,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 344 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:06,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-02-24 00:43:06,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1034. [2022-02-24 00:43:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4499514091350827) internal successors, (1492), 1029 states have internal predecessors, (1492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1496 transitions. [2022-02-24 00:43:06,057 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1496 transitions. Word has length 218 [2022-02-24 00:43:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:06,057 INFO L470 AbstractCegarLoop]: Abstraction has 1034 states and 1496 transitions. [2022-02-24 00:43:06,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1496 transitions. [2022-02-24 00:43:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-02-24 00:43:06,060 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:06,060 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:06,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:43:06,060 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash -546969239, now seen corresponding path program 1 times [2022-02-24 00:43:06,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:06,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092375297] [2022-02-24 00:43:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:06,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:06,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092375297] [2022-02-24 00:43:06,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092375297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:06,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:06,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:06,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349277284] [2022-02-24 00:43:06,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:06,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:06,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:06,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:06,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:06,200 INFO L87 Difference]: Start difference. First operand 1034 states and 1496 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:09,018 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 [] [2022-02-24 00:43:11,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:13,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:13,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:13,509 INFO L93 Difference]: Finished difference Result 2202 states and 3177 transitions. [2022-02-24 00:43:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:13,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-02-24 00:43:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:13,512 INFO L225 Difference]: With dead ends: 2202 [2022-02-24 00:43:13,512 INFO L226 Difference]: Without dead ends: 1196 [2022-02-24 00:43:13,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:13,513 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 112 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 57 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:13,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 334 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 445 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-02-24 00:43:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2022-02-24 00:43:13,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1034. [2022-02-24 00:43:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4421768707482994) internal successors, (1484), 1029 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:13,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1488 transitions. [2022-02-24 00:43:13,537 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1488 transitions. Word has length 219 [2022-02-24 00:43:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:13,537 INFO L470 AbstractCegarLoop]: Abstraction has 1034 states and 1488 transitions. [2022-02-24 00:43:13,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1488 transitions. [2022-02-24 00:43:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-02-24 00:43:13,540 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:13,540 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:13,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 00:43:13,540 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash -547343874, now seen corresponding path program 1 times [2022-02-24 00:43:13,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:13,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606828450] [2022-02-24 00:43:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:13,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:13,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:13,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:13,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606828450] [2022-02-24 00:43:13,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606828450] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:13,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:13,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:13,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566745755] [2022-02-24 00:43:13,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:13,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:13,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:13,671 INFO L87 Difference]: Start difference. First operand 1034 states and 1488 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:14,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:16,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:18,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:20,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:21,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:21,060 INFO L93 Difference]: Finished difference Result 2096 states and 3016 transitions. [2022-02-24 00:43:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:21,061 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 221 [2022-02-24 00:43:21,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:21,065 INFO L225 Difference]: With dead ends: 2096 [2022-02-24 00:43:21,065 INFO L226 Difference]: Without dead ends: 1090 [2022-02-24 00:43:21,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:21,067 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:21,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 574 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 531 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-02-24 00:43:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2022-02-24 00:43:21,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1034. [2022-02-24 00:43:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4402332361516035) internal successors, (1482), 1029 states have internal predecessors, (1482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1486 transitions. [2022-02-24 00:43:21,090 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1486 transitions. Word has length 221 [2022-02-24 00:43:21,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:21,090 INFO L470 AbstractCegarLoop]: Abstraction has 1034 states and 1486 transitions. [2022-02-24 00:43:21,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:21,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1486 transitions. [2022-02-24 00:43:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-02-24 00:43:21,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:21,093 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:21,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 00:43:21,093 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:21,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:21,094 INFO L85 PathProgramCache]: Analyzing trace with hash 29557597, now seen corresponding path program 1 times [2022-02-24 00:43:21,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:21,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356789467] [2022-02-24 00:43:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:21,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:21,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:21,243 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:21,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:21,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356789467] [2022-02-24 00:43:21,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356789467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:21,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:21,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:21,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68257164] [2022-02-24 00:43:21,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:21,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:21,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:21,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:21,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:21,247 INFO L87 Difference]: Start difference. First operand 1034 states and 1486 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:23,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:25,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:27,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:29,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:29,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:29,591 INFO L93 Difference]: Finished difference Result 2080 states and 2986 transitions. [2022-02-24 00:43:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:29,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-02-24 00:43:29,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:29,595 INFO L225 Difference]: With dead ends: 2080 [2022-02-24 00:43:29,595 INFO L226 Difference]: Without dead ends: 1074 [2022-02-24 00:43:29,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:29,596 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 51 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:29,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 564 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 494 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 00:43:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-02-24 00:43:29,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1034. [2022-02-24 00:43:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4382896015549076) internal successors, (1480), 1029 states have internal predecessors, (1480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1484 transitions. [2022-02-24 00:43:29,619 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1484 transitions. Word has length 222 [2022-02-24 00:43:29,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:29,620 INFO L470 AbstractCegarLoop]: Abstraction has 1034 states and 1484 transitions. [2022-02-24 00:43:29,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1484 transitions. [2022-02-24 00:43:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-24 00:43:29,622 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:29,622 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:29,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 00:43:29,623 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:29,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1817226739, now seen corresponding path program 1 times [2022-02-24 00:43:29,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:29,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737528060] [2022-02-24 00:43:29,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:29,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:29,776 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:29,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:29,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737528060] [2022-02-24 00:43:29,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737528060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:29,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:29,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:29,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658625549] [2022-02-24 00:43:29,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:29,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:29,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:29,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:29,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:29,778 INFO L87 Difference]: Start difference. First operand 1034 states and 1484 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:30,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:32,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:34,862 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 [] [2022-02-24 00:43:36,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:36,297 INFO L93 Difference]: Finished difference Result 2328 states and 3348 transitions. [2022-02-24 00:43:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:36,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2022-02-24 00:43:36,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:36,302 INFO L225 Difference]: With dead ends: 2328 [2022-02-24 00:43:36,302 INFO L226 Difference]: Without dead ends: 1322 [2022-02-24 00:43:36,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:36,304 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 106 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:36,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 334 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 449 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-24 00:43:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-02-24 00:43:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1124. [2022-02-24 00:43:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.4307417336907953) internal successors, (1601), 1119 states have internal predecessors, (1601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1605 transitions. [2022-02-24 00:43:36,328 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1605 transitions. Word has length 223 [2022-02-24 00:43:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:36,329 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1605 transitions. [2022-02-24 00:43:36,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1605 transitions. [2022-02-24 00:43:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-24 00:43:36,331 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:36,332 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:36,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 00:43:36,332 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash 938283475, now seen corresponding path program 1 times [2022-02-24 00:43:36,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:36,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917196604] [2022-02-24 00:43:36,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:36,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:36,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:36,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917196604] [2022-02-24 00:43:36,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917196604] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:36,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:36,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:36,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164331361] [2022-02-24 00:43:36,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:36,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:36,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:36,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:36,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:36,464 INFO L87 Difference]: Start difference. First operand 1124 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:38,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:38,875 INFO L93 Difference]: Finished difference Result 2260 states and 3224 transitions. [2022-02-24 00:43:38,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:38,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-02-24 00:43:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:38,878 INFO L225 Difference]: With dead ends: 2260 [2022-02-24 00:43:38,878 INFO L226 Difference]: Without dead ends: 1164 [2022-02-24 00:43:38,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:38,880 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 52 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:38,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 560 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2022-02-24 00:43:38,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1124. [2022-02-24 00:43:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.4289544235924934) internal successors, (1599), 1119 states have internal predecessors, (1599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1603 transitions. [2022-02-24 00:43:38,904 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1603 transitions. Word has length 224 [2022-02-24 00:43:38,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:38,905 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1603 transitions. [2022-02-24 00:43:38,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:38,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1603 transitions. [2022-02-24 00:43:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-24 00:43:38,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:38,907 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:38,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 00:43:38,908 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:38,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash -249721456, now seen corresponding path program 1 times [2022-02-24 00:43:38,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:38,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138886939] [2022-02-24 00:43:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:38,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:39,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:39,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138886939] [2022-02-24 00:43:39,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138886939] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:39,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:39,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:39,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464919470] [2022-02-24 00:43:39,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:39,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:39,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:39,071 INFO L87 Difference]: Start difference. First operand 1124 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:41,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:41,504 INFO L93 Difference]: Finished difference Result 2382 states and 3391 transitions. [2022-02-24 00:43:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-02-24 00:43:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:41,508 INFO L225 Difference]: With dead ends: 2382 [2022-02-24 00:43:41,508 INFO L226 Difference]: Without dead ends: 1286 [2022-02-24 00:43:41,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:41,510 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 105 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:41,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 334 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:41,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-02-24 00:43:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1124. [2022-02-24 00:43:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.421805183199285) internal successors, (1591), 1119 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) [2022-02-24 00:43:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1595 transitions. [2022-02-24 00:43:41,531 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1595 transitions. Word has length 224 [2022-02-24 00:43:41,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:41,531 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1595 transitions. [2022-02-24 00:43:41,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1595 transitions. [2022-02-24 00:43:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-02-24 00:43:41,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:41,534 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:41,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 00:43:41,534 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:41,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1302900628, now seen corresponding path program 1 times [2022-02-24 00:43:41,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:41,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228836474] [2022-02-24 00:43:41,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:41,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:41,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:41,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228836474] [2022-02-24 00:43:41,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228836474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:41,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:41,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:41,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347794350] [2022-02-24 00:43:41,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:41,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:41,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:41,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:41,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:41,660 INFO L87 Difference]: Start difference. First operand 1124 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:43,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:44,070 INFO L93 Difference]: Finished difference Result 2252 states and 3194 transitions. [2022-02-24 00:43:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:44,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-02-24 00:43:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:44,074 INFO L225 Difference]: With dead ends: 2252 [2022-02-24 00:43:44,074 INFO L226 Difference]: Without dead ends: 1156 [2022-02-24 00:43:44,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:44,076 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 47 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:44,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 554 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:44,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2022-02-24 00:43:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1124. [2022-02-24 00:43:44,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.420017873100983) internal successors, (1589), 1119 states have internal predecessors, (1589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1593 transitions. [2022-02-24 00:43:44,100 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1593 transitions. Word has length 225 [2022-02-24 00:43:44,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:44,100 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1593 transitions. [2022-02-24 00:43:44,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:44,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1593 transitions. [2022-02-24 00:43:44,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-24 00:43:44,103 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:44,103 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:44,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 00:43:44,103 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:44,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash 519324707, now seen corresponding path program 1 times [2022-02-24 00:43:44,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:44,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953729276] [2022-02-24 00:43:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:44,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:44,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:44,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953729276] [2022-02-24 00:43:44,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953729276] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:44,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:44,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:44,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847396768] [2022-02-24 00:43:44,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:44,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:44,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:44,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:44,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:44,234 INFO L87 Difference]: Start difference. First operand 1124 states and 1593 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:46,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:48,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:50,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:51,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:51,105 INFO L93 Difference]: Finished difference Result 2252 states and 3190 transitions. [2022-02-24 00:43:51,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:51,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2022-02-24 00:43:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:51,108 INFO L225 Difference]: With dead ends: 2252 [2022-02-24 00:43:51,108 INFO L226 Difference]: Without dead ends: 1156 [2022-02-24 00:43:51,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:51,110 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 40 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:51,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 552 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:43:51,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2022-02-24 00:43:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1124. [2022-02-24 00:43:51,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.418230563002681) internal successors, (1587), 1119 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) [2022-02-24 00:43:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1591 transitions. [2022-02-24 00:43:51,128 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1591 transitions. Word has length 227 [2022-02-24 00:43:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:51,129 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1591 transitions. [2022-02-24 00:43:51,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1591 transitions. [2022-02-24 00:43:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-24 00:43:51,130 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:51,131 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:51,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 00:43:51,131 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:51,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:51,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2136203219, now seen corresponding path program 1 times [2022-02-24 00:43:51,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:51,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897464704] [2022-02-24 00:43:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:51,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:51,293 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:51,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:51,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897464704] [2022-02-24 00:43:51,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897464704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:51,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:51,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:51,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377092058] [2022-02-24 00:43:51,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:51,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:51,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:51,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:51,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:51,296 INFO L87 Difference]: Start difference. First operand 1124 states and 1591 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:53,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:53,671 INFO L93 Difference]: Finished difference Result 2244 states and 3176 transitions. [2022-02-24 00:43:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:53,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-02-24 00:43:53,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:53,673 INFO L225 Difference]: With dead ends: 2244 [2022-02-24 00:43:53,674 INFO L226 Difference]: Without dead ends: 1148 [2022-02-24 00:43:53,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:53,675 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 35 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:53,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 544 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:43:53,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-02-24 00:43:53,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1124. [2022-02-24 00:43:53,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.416443252904379) internal successors, (1585), 1119 states have internal predecessors, (1585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1589 transitions. [2022-02-24 00:43:53,698 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1589 transitions. Word has length 228 [2022-02-24 00:43:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:53,699 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 1589 transitions. [2022-02-24 00:43:53,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1589 transitions. [2022-02-24 00:43:53,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-24 00:43:53,701 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:53,701 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:43:53,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 00:43:53,701 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:53,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:53,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2097942340, now seen corresponding path program 1 times [2022-02-24 00:43:53,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:53,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456977689] [2022-02-24 00:43:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:43:53,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:53,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456977689] [2022-02-24 00:43:53,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456977689] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:53,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:53,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:53,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60403458] [2022-02-24 00:43:53,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:53,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:53,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:53,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:53,835 INFO L87 Difference]: Start difference. First operand 1124 states and 1589 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:55,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:57,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:59,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:00,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:00,292 INFO L93 Difference]: Finished difference Result 2508 states and 3552 transitions. [2022-02-24 00:44:00,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:00,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-02-24 00:44:00,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:00,295 INFO L225 Difference]: With dead ends: 2508 [2022-02-24 00:44:00,295 INFO L226 Difference]: Without dead ends: 1412 [2022-02-24 00:44:00,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:00,296 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 100 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:00,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 334 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 00:44:00,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-02-24 00:44:00,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1229. [2022-02-24 00:44:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.4133986928104576) internal successors, (1730), 1224 states have internal predecessors, (1730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1734 transitions. [2022-02-24 00:44:00,318 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1734 transitions. Word has length 228 [2022-02-24 00:44:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:00,319 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 1734 transitions. [2022-02-24 00:44:00,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1734 transitions. [2022-02-24 00:44:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-02-24 00:44:00,321 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:00,321 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:00,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 00:44:00,321 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:00,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:00,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1089527269, now seen corresponding path program 1 times [2022-02-24 00:44:00,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:00,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610930601] [2022-02-24 00:44:00,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:00,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:44:00,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:00,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610930601] [2022-02-24 00:44:00,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610930601] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:00,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:00,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:00,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115685005] [2022-02-24 00:44:00,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:00,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:00,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:00,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:00,454 INFO L87 Difference]: Start difference. First operand 1229 states and 1734 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:01,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:03,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:05,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:08,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:08,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:08,372 INFO L93 Difference]: Finished difference Result 2450 states and 3458 transitions. [2022-02-24 00:44:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:08,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2022-02-24 00:44:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:08,374 INFO L225 Difference]: With dead ends: 2450 [2022-02-24 00:44:08,374 INFO L226 Difference]: Without dead ends: 1249 [2022-02-24 00:44:08,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:08,376 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:08,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 538 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-24 00:44:08,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-24 00:44:08,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1229. [2022-02-24 00:44:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.411764705882353) internal successors, (1728), 1224 states have internal predecessors, (1728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1732 transitions. [2022-02-24 00:44:08,404 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1732 transitions. Word has length 229 [2022-02-24 00:44:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:08,404 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 1732 transitions. [2022-02-24 00:44:08,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1732 transitions. [2022-02-24 00:44:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-24 00:44:08,407 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:08,407 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:08,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 00:44:08,407 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:08,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:08,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1676322048, now seen corresponding path program 1 times [2022-02-24 00:44:08,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:08,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899074202] [2022-02-24 00:44:08,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:08,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:44:08,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:08,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899074202] [2022-02-24 00:44:08,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899074202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:08,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:08,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:08,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586093779] [2022-02-24 00:44:08,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:08,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:08,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:08,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:08,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:08,563 INFO L87 Difference]: Start difference. First operand 1229 states and 1732 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:10,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:10,934 INFO L93 Difference]: Finished difference Result 2450 states and 3454 transitions. [2022-02-24 00:44:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:10,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-02-24 00:44:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:10,937 INFO L225 Difference]: With dead ends: 2450 [2022-02-24 00:44:10,937 INFO L226 Difference]: Without dead ends: 1249 [2022-02-24 00:44:10,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:10,939 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 28 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:10,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 536 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:44:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-24 00:44:10,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1229. [2022-02-24 00:44:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.4101307189542485) internal successors, (1726), 1224 states have internal predecessors, (1726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:10,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1730 transitions. [2022-02-24 00:44:10,959 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1730 transitions. Word has length 230 [2022-02-24 00:44:10,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:10,959 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 1730 transitions. [2022-02-24 00:44:10,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:10,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1730 transitions. [2022-02-24 00:44:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-24 00:44:10,961 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:10,961 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:10,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 00:44:10,962 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:10,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:10,962 INFO L85 PathProgramCache]: Analyzing trace with hash -8501446, now seen corresponding path program 1 times [2022-02-24 00:44:10,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:10,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416863306] [2022-02-24 00:44:10,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:10,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:11,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:44:11,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:11,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416863306] [2022-02-24 00:44:11,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416863306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:11,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:11,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:11,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557337847] [2022-02-24 00:44:11,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:11,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:11,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:11,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:11,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:11,094 INFO L87 Difference]: Start difference. First operand 1229 states and 1730 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:13,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:13,485 INFO L93 Difference]: Finished difference Result 2446 states and 3446 transitions. [2022-02-24 00:44:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:13,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-02-24 00:44:13,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:13,488 INFO L225 Difference]: With dead ends: 2446 [2022-02-24 00:44:13,488 INFO L226 Difference]: Without dead ends: 1245 [2022-02-24 00:44:13,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:13,490 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 25 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:13,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 532 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:13,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-02-24 00:44:13,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1229. [2022-02-24 00:44:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.408496732026144) internal successors, (1724), 1224 states have internal predecessors, (1724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1728 transitions. [2022-02-24 00:44:13,518 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1728 transitions. Word has length 231 [2022-02-24 00:44:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:13,519 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 1728 transitions. [2022-02-24 00:44:13,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:13,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1728 transitions. [2022-02-24 00:44:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-02-24 00:44:13,521 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:13,521 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:13,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 00:44:13,521 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1801789431, now seen corresponding path program 1 times [2022-02-24 00:44:13,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:13,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826407060] [2022-02-24 00:44:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:13,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:44:13,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:13,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826407060] [2022-02-24 00:44:13,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826407060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:13,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:13,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:13,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75089453] [2022-02-24 00:44:13,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:13,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:13,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:13,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:13,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:13,664 INFO L87 Difference]: Start difference. First operand 1229 states and 1728 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:15,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:17,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:19,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:21,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:21,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:21,845 INFO L93 Difference]: Finished difference Result 2817 states and 3968 transitions. [2022-02-24 00:44:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:21,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-02-24 00:44:21,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:21,848 INFO L225 Difference]: With dead ends: 2817 [2022-02-24 00:44:21,848 INFO L226 Difference]: Without dead ends: 1616 [2022-02-24 00:44:21,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:21,850 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 96 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:21,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 336 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-24 00:44:21,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-02-24 00:44:21,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1445. [2022-02-24 00:44:21,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.4104166666666667) internal successors, (2031), 1440 states have internal predecessors, (2031), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2035 transitions. [2022-02-24 00:44:21,883 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2035 transitions. Word has length 234 [2022-02-24 00:44:21,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:21,883 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 2035 transitions. [2022-02-24 00:44:21,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:21,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2035 transitions. [2022-02-24 00:44:21,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-02-24 00:44:21,900 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:21,900 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:21,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 00:44:21,900 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:21,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash -658958062, now seen corresponding path program 1 times [2022-02-24 00:44:21,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:21,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169427925] [2022-02-24 00:44:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:21,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-24 00:44:22,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:22,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169427925] [2022-02-24 00:44:22,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169427925] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:22,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:22,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:22,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182733887] [2022-02-24 00:44:22,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:22,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:22,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:22,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:22,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:22,052 INFO L87 Difference]: Start difference. First operand 1445 states and 2035 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:23,912 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 [] [2022-02-24 00:44:25,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:27,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:30,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:30,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:30,375 INFO L93 Difference]: Finished difference Result 2872 states and 4048 transitions. [2022-02-24 00:44:30,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:30,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-02-24 00:44:30,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:30,377 INFO L225 Difference]: With dead ends: 2872 [2022-02-24 00:44:30,377 INFO L226 Difference]: Without dead ends: 1455 [2022-02-24 00:44:30,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:30,379 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 19 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:30,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 526 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 433 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 00:44:30,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-02-24 00:44:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1445. [2022-02-24 00:44:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.4090277777777778) internal successors, (2029), 1440 states have internal predecessors, (2029), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2033 transitions. [2022-02-24 00:44:30,403 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2033 transitions. Word has length 235 [2022-02-24 00:44:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:30,403 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 2033 transitions. [2022-02-24 00:44:30,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2033 transitions. [2022-02-24 00:44:30,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-24 00:44:30,405 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:30,405 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:30,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 00:44:30,406 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:30,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:30,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1135293253, now seen corresponding path program 1 times [2022-02-24 00:44:30,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:30,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873869528] [2022-02-24 00:44:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:30,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-24 00:44:30,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:30,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873869528] [2022-02-24 00:44:30,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873869528] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:30,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:30,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:44:30,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718000510] [2022-02-24 00:44:30,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:30,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:44:30,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:30,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:44:30,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:30,698 INFO L87 Difference]: Start difference. First operand 1445 states and 2033 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:32,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:33,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:33,540 INFO L93 Difference]: Finished difference Result 3325 states and 4690 transitions. [2022-02-24 00:44:33,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 00:44:33,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-02-24 00:44:33,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:33,544 INFO L225 Difference]: With dead ends: 3325 [2022-02-24 00:44:33,544 INFO L226 Difference]: Without dead ends: 1908 [2022-02-24 00:44:33,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-24 00:44:33,546 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 297 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:33,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 762 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 761 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-02-24 00:44:33,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-02-24 00:44:33,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1511. [2022-02-24 00:44:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1506 states have (on average 1.403054448871182) internal successors, (2113), 1506 states have internal predecessors, (2113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2117 transitions. [2022-02-24 00:44:33,594 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2117 transitions. Word has length 239 [2022-02-24 00:44:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:33,595 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 2117 transitions. [2022-02-24 00:44:33,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2117 transitions. [2022-02-24 00:44:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-24 00:44:33,597 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:33,597 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:33,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 00:44:33,597 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:33,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:33,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2083120634, now seen corresponding path program 1 times [2022-02-24 00:44:33,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:33,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994663143] [2022-02-24 00:44:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:33,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 320 proven. 54 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-24 00:44:33,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:33,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994663143] [2022-02-24 00:44:33,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994663143] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:33,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185491522] [2022-02-24 00:44:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:33,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:44:33,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:44:34,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:44:34,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-24 00:44:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:34,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-24 00:44:34,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:44:35,021 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:44:35,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:44:35,063 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:44:35,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:44:35,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:44:35,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:44:35,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:44:35,221 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:44:35,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-24 00:44:35,305 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:44:35,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-24 00:44:35,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:44:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 305 proven. 48 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-02-24 00:44:35,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:44:35,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-24 00:44:35,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-24 00:44:37,088 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_13 Int) (v_arrayElimCell_12 Int)) (not (= 8496 (select (select (store |c_#memory_int| v_arrayElimCell_12 (store (select |c_#memory_int| v_arrayElimCell_12) (+ 904 v_arrayElimCell_13) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-02-24 00:44:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-24 00:44:37,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185491522] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:37,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:44:37,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 19 [2022-02-24 00:44:37,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452250260] [2022-02-24 00:44:37,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:37,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:37,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:37,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:37,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=264, Unknown=1, NotChecked=32, Total=342 [2022-02-24 00:44:37,227 INFO L87 Difference]: Start difference. First operand 1511 states and 2117 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:39,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:40,791 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_13 Int) (v_arrayElimCell_12 Int)) (not (= 8496 (select (select (store |c_#memory_int| v_arrayElimCell_12 (store (select |c_#memory_int| v_arrayElimCell_12) (+ 904 v_arrayElimCell_13) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8496))) is different from false [2022-02-24 00:44:40,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:40,820 INFO L93 Difference]: Finished difference Result 3173 states and 4456 transitions. [2022-02-24 00:44:40,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:40,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-02-24 00:44:40,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:40,823 INFO L225 Difference]: With dead ends: 3173 [2022-02-24 00:44:40,823 INFO L226 Difference]: Without dead ends: 1690 [2022-02-24 00:44:40,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=51, Invalid=297, Unknown=2, NotChecked=70, Total=420 [2022-02-24 00:44:40,826 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 108 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 247 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:40,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 478 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 232 Invalid, 1 Unknown, 247 Unchecked, 2.3s Time] [2022-02-24 00:44:40,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-02-24 00:44:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1445. [2022-02-24 00:44:40,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.395138888888889) internal successors, (2009), 1440 states have internal predecessors, (2009), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2013 transitions. [2022-02-24 00:44:40,854 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2013 transitions. Word has length 239 [2022-02-24 00:44:40,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:40,854 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 2013 transitions. [2022-02-24 00:44:40,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2013 transitions. [2022-02-24 00:44:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-02-24 00:44:40,856 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:40,856 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:40,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-24 00:44:41,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2022-02-24 00:44:41,057 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1064139512, now seen corresponding path program 1 times [2022-02-24 00:44:41,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:41,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114189647] [2022-02-24 00:44:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:41,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 363 proven. 44 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-02-24 00:44:41,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:41,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114189647] [2022-02-24 00:44:41,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114189647] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:41,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299339091] [2022-02-24 00:44:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:41,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:44:41,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:44:41,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:44:41,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-24 00:44:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:42,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-24 00:44:42,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:44:42,333 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:44:42,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:44:42,378 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:44:42,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:44:42,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:44:42,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:44:42,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:44:42,542 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:44:42,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-24 00:44:42,606 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:44:42,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-24 00:44:42,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:44:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 371 proven. 46 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-02-24 00:44:42,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:44:43,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-24 00:44:43,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-24 00:44:44,844 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_23 Int) (v_arrayElimCell_22 Int)) (not (= 8464 (select (select (store |c_#memory_int| v_arrayElimCell_22 (store (select |c_#memory_int| v_arrayElimCell_22) (+ 904 v_arrayElimCell_23) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-02-24 00:44:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-02-24 00:44:44,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299339091] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:44,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:44:44,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 7] total 14 [2022-02-24 00:44:44,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212021562] [2022-02-24 00:44:44,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:44,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:44,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:44,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:44,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-02-24 00:44:44,962 INFO L87 Difference]: Start difference. First operand 1445 states and 2013 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:46,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:48,782 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_23 Int) (v_arrayElimCell_22 Int)) (not (= 8464 (select (select (store |c_#memory_int| v_arrayElimCell_22 (store (select |c_#memory_int| v_arrayElimCell_22) (+ 904 v_arrayElimCell_23) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8464))) is different from false [2022-02-24 00:44:48,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:48,805 INFO L93 Difference]: Finished difference Result 3246 states and 4529 transitions. [2022-02-24 00:44:48,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:48,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-02-24 00:44:48,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:48,808 INFO L225 Difference]: With dead ends: 3246 [2022-02-24 00:44:48,808 INFO L226 Difference]: Without dead ends: 1829 [2022-02-24 00:44:48,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-02-24 00:44:48,810 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 109 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 239 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:48,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 478 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 236 Invalid, 1 Unknown, 239 Unchecked, 2.3s Time] [2022-02-24 00:44:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2022-02-24 00:44:48,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1499. [2022-02-24 00:44:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1494 states have (on average 1.390896921017403) internal successors, (2078), 1494 states have internal predecessors, (2078), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2082 transitions. [2022-02-24 00:44:48,851 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2082 transitions. Word has length 256 [2022-02-24 00:44:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:48,851 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 2082 transitions. [2022-02-24 00:44:48,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2082 transitions. [2022-02-24 00:44:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-02-24 00:44:48,854 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:48,854 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:48,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-24 00:44:49,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:44:49,068 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:49,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:49,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1537658455, now seen corresponding path program 1 times [2022-02-24 00:44:49,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:49,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675972660] [2022-02-24 00:44:49,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:49,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:49,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 371 proven. 123 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-02-24 00:44:49,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:49,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675972660] [2022-02-24 00:44:49,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675972660] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:49,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522273892] [2022-02-24 00:44:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:49,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:44:49,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:44:49,452 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:44:49,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-24 00:44:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:50,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 51 conjunts are in the unsatisfiable core [2022-02-24 00:44:50,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:44:50,508 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:44:50,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:44:50,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:44:50,648 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-02-24 00:44:50,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 38 [2022-02-24 00:44:50,706 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-02-24 00:44:50,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 26 [2022-02-24 00:44:50,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:44:50,824 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-02-24 00:44:50,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2022-02-24 00:44:50,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-02-24 00:44:50,842 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:44:50,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-02-24 00:44:50,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:50,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-02-24 00:44:50,912 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-02-24 00:44:50,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 42 [2022-02-24 00:44:51,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:51,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2022-02-24 00:44:51,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:51,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2022-02-24 00:44:51,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:51,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 23 [2022-02-24 00:44:51,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:44:51,172 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-24 00:44:51,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-02-24 00:44:51,267 INFO L356 Elim1Store]: treesize reduction 120, result has 24.1 percent of original size [2022-02-24 00:44:51,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 76 [2022-02-24 00:44:51,466 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:44:51,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 23 [2022-02-24 00:44:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 365 proven. 112 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-24 00:44:51,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:44:51,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-02-24 00:44:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-02-24 00:44:52,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522273892] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:52,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:44:52,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 13] total 26 [2022-02-24 00:44:52,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13522272] [2022-02-24 00:44:52,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:52,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:52,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2022-02-24 00:44:52,014 INFO L87 Difference]: Start difference. First operand 1499 states and 2082 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:54,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:54,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:54,349 INFO L93 Difference]: Finished difference Result 3201 states and 4454 transitions. [2022-02-24 00:44:54,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:44:54,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-02-24 00:44:54,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:54,352 INFO L225 Difference]: With dead ends: 3201 [2022-02-24 00:44:54,352 INFO L226 Difference]: Without dead ends: 1730 [2022-02-24 00:44:54,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-02-24 00:44:54,353 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 121 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:54,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 478 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 239 Invalid, 1 Unknown, 79 Unchecked, 2.3s Time] [2022-02-24 00:44:54,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2022-02-24 00:44:54,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1442. [2022-02-24 00:44:54,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1437 states have (on average 1.3917884481558802) internal successors, (2000), 1437 states have internal predecessors, (2000), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2004 transitions. [2022-02-24 00:44:54,380 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2004 transitions. Word has length 256 [2022-02-24 00:44:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:54,380 INFO L470 AbstractCegarLoop]: Abstraction has 1442 states and 2004 transitions. [2022-02-24 00:44:54,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2004 transitions. [2022-02-24 00:44:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-02-24 00:44:54,382 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:54,382 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:54,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-24 00:44:54,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:44:54,586 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:54,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1554797671, now seen corresponding path program 1 times [2022-02-24 00:44:54,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:54,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611417575] [2022-02-24 00:44:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:54,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-02-24 00:44:54,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:54,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611417575] [2022-02-24 00:44:54,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611417575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:54,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:54,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:44:54,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846142203] [2022-02-24 00:44:54,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:54,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:44:54,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:44:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:54,806 INFO L87 Difference]: Start difference. First operand 1442 states and 2004 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:56,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:57,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:57,457 INFO L93 Difference]: Finished difference Result 3153 states and 4390 transitions. [2022-02-24 00:44:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-24 00:44:57,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-02-24 00:44:57,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:57,461 INFO L225 Difference]: With dead ends: 3153 [2022-02-24 00:44:57,461 INFO L226 Difference]: Without dead ends: 1739 [2022-02-24 00:44:57,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:44:57,463 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 203 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:57,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 597 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 581 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-24 00:44:57,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2022-02-24 00:44:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1502. [2022-02-24 00:44:57,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1497 states have (on average 1.3841015364061455) internal successors, (2072), 1497 states have internal predecessors, (2072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2076 transitions. [2022-02-24 00:44:57,506 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2076 transitions. Word has length 257 [2022-02-24 00:44:57,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:57,506 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2076 transitions. [2022-02-24 00:44:57,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:57,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2076 transitions. [2022-02-24 00:44:57,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-02-24 00:44:57,508 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:57,509 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:57,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 00:44:57,509 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash 239387674, now seen corresponding path program 1 times [2022-02-24 00:44:57,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:57,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413825812] [2022-02-24 00:44:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:57,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:57,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 409 proven. 69 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-24 00:44:57,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:57,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413825812] [2022-02-24 00:44:57,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413825812] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:57,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196312749] [2022-02-24 00:44:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:57,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:44:57,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:44:57,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:44:57,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-24 00:44:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:58,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 26 conjunts are in the unsatisfiable core [2022-02-24 00:44:58,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:44:58,903 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:44:58,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:44:58,949 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:44:58,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:44:59,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:44:59,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:44:59,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:44:59,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:44:59,078 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:44:59,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-24 00:44:59,143 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:44:59,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-24 00:44:59,663 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:44:59,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2022-02-24 00:44:59,844 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 376 proven. 47 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-02-24 00:44:59,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:45:00,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-02-24 00:45:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-02-24 00:45:01,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196312749] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:45:01,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:45:01,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 7] total 18 [2022-02-24 00:45:01,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610989129] [2022-02-24 00:45:01,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:01,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:45:01,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:01,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:45:01,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-02-24 00:45:01,369 INFO L87 Difference]: Start difference. First operand 1502 states and 2076 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:02,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:03,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:03,018 INFO L93 Difference]: Finished difference Result 3205 states and 4440 transitions. [2022-02-24 00:45:03,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:45:03,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-02-24 00:45:03,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:03,022 INFO L225 Difference]: With dead ends: 3205 [2022-02-24 00:45:03,022 INFO L226 Difference]: Without dead ends: 1731 [2022-02-24 00:45:03,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 513 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-02-24 00:45:03,025 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 116 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:03,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 344 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-24 00:45:03,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-02-24 00:45:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1443. [2022-02-24 00:45:03,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1438 states have (on average 1.3748261474269818) internal successors, (1977), 1438 states have internal predecessors, (1977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1981 transitions. [2022-02-24 00:45:03,069 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1981 transitions. Word has length 257 [2022-02-24 00:45:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:03,069 INFO L470 AbstractCegarLoop]: Abstraction has 1443 states and 1981 transitions. [2022-02-24 00:45:03,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1981 transitions. [2022-02-24 00:45:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-24 00:45:03,072 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:03,072 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:03,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-24 00:45:03,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-02-24 00:45:03,300 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:03,300 INFO L85 PathProgramCache]: Analyzing trace with hash 259054701, now seen corresponding path program 1 times [2022-02-24 00:45:03,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:03,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566564801] [2022-02-24 00:45:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:03,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-02-24 00:45:03,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:03,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566564801] [2022-02-24 00:45:03,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566564801] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:03,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:03,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-24 00:45:03,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014203443] [2022-02-24 00:45:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:03,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 00:45:03,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 00:45:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:45:03,689 INFO L87 Difference]: Start difference. First operand 1443 states and 1981 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:06,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:08,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:10,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:12,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:14,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:15,272 INFO L93 Difference]: Finished difference Result 2879 states and 3954 transitions. [2022-02-24 00:45:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 00:45:15,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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 268 [2022-02-24 00:45:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:15,276 INFO L225 Difference]: With dead ends: 2879 [2022-02-24 00:45:15,276 INFO L226 Difference]: Without dead ends: 1443 [2022-02-24 00:45:15,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-24 00:45:15,278 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:15,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 429 Invalid, 5 Unknown, 0 Unchecked, 11.5s Time] [2022-02-24 00:45:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-02-24 00:45:15,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2022-02-24 00:45:15,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1438 states have (on average 1.3741307371349096) internal successors, (1976), 1438 states have internal predecessors, (1976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1980 transitions. [2022-02-24 00:45:15,319 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1980 transitions. Word has length 268 [2022-02-24 00:45:15,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:15,319 INFO L470 AbstractCegarLoop]: Abstraction has 1443 states and 1980 transitions. [2022-02-24 00:45:15,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1980 transitions. [2022-02-24 00:45:15,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-24 00:45:15,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:15,322 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:15,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 00:45:15,322 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:15,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:15,322 INFO L85 PathProgramCache]: Analyzing trace with hash 743691532, now seen corresponding path program 1 times [2022-02-24 00:45:15,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:15,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298976144] [2022-02-24 00:45:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:15,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 302 proven. 225 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-24 00:45:16,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:16,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298976144] [2022-02-24 00:45:16,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298976144] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:45:16,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449663034] [2022-02-24 00:45:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:16,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:45:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:45:16,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:45:16,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-24 00:45:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:17,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 195 conjunts are in the unsatisfiable core [2022-02-24 00:45:17,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:45:17,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,902 INFO L356 Elim1Store]: treesize reduction 776, result has 6.6 percent of original size [2022-02-24 00:45:19,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 15676 treesize of output 13409 [2022-02-24 00:45:19,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:19,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5980 treesize of output 875