/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:50:58,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:50:58,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:50:58,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:50:58,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:50:58,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:50:58,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:50:58,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:50:58,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:50:58,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:50:58,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:50:58,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:50:58,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:50:58,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:50:58,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:50:58,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:50:58,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:50:58,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:50:58,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:50:58,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:50:58,243 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:50:58,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:50:58,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:50:58,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:50:58,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:50:58,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 02:50:58,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:50:58,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:50:58,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:50:58,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 02:50:58,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:50:58,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:50:58,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:50:58,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:50:58,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:50:58,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:50:58,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:50:58,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:50:58,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:50:58,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:50:58,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:50:58,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:50:58,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:50:58,280 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:50:58,280 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:50:58,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:50:58,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:50:58,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:50:58,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:50:58,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:50:58,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:50:58,488 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:50:58,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-03-20 02:50:58,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7c92d29/fe695c32da5648c39fbb78ebd49097ca/FLAGe94e8bd8b [2022-03-20 02:50:58,955 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:50:58,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-03-20 02:50:58,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7c92d29/fe695c32da5648c39fbb78ebd49097ca/FLAGe94e8bd8b [2022-03-20 02:50:59,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e7c92d29/fe695c32da5648c39fbb78ebd49097ca [2022-03-20 02:50:59,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:50:59,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:50:59,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:50:59,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:50:59,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:50:59,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dbe703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59, skipping insertion in model container [2022-03-20 02:50:59,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:50:59,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:50:59,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-03-20 02:50:59,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:50:59,646 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:50:59,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-03-20 02:50:59,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:50:59,758 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:50:59,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59 WrapperNode [2022-03-20 02:50:59,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:50:59,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:50:59,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:50:59,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:50:59,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:50:59,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:50:59,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:50:59,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:50:59,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (1/1) ... [2022-03-20 02:50:59,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:50:59,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:50:59,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 02:50:59,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 02:50:59,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:50:59,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:50:59,946 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:50:59,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:50:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:50:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:50:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:50:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:50:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:50:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:50:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:50:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:50:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:50:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:50:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:50:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:50:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:51:00,111 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:51:00,112 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:51:00,714 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:51:01,133 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:51:01,133 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:51:01,155 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:51:01,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:51:01,161 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:51:01,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:51:01 BoogieIcfgContainer [2022-03-20 02:51:01,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:51:01,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:51:01,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:51:01,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:51:01,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:50:59" (1/3) ... [2022-03-20 02:51:01,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b1e6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:51:01, skipping insertion in model container [2022-03-20 02:51:01,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:59" (2/3) ... [2022-03-20 02:51:01,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b1e6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:51:01, skipping insertion in model container [2022-03-20 02:51:01,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:51:01" (3/3) ... [2022-03-20 02:51:01,172 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.c [2022-03-20 02:51:01,176 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:51:01,176 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:51:01,218 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:51:01,226 INFO L340 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=PETRI_NET, 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 [2022-03-20 02:51:01,226 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:51:01,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 02:51:01,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 02:51:01,264 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:01,264 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:01,264 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:01,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:01,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1930935805, now seen corresponding path program 1 times [2022-03-20 02:51:01,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:01,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260330459] [2022-03-20 02:51:01,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:01,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:01,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:01,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:01,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260330459] [2022-03-20 02:51:01,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260330459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:01,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:01,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:01,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633172317] [2022-03-20 02:51:01,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:01,772 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:01,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:01,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:01,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:01,798 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:03,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:03,566 INFO L93 Difference]: Finished difference Result 336 states and 564 transitions. [2022-03-20 02:51:03,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 02:51:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:03,574 INFO L225 Difference]: With dead ends: 336 [2022-03-20 02:51:03,575 INFO L226 Difference]: Without dead ends: 171 [2022-03-20 02:51:03,577 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:03,579 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:03,580 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 613 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 02:51:03,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-03-20 02:51:03,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-03-20 02:51:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5570469798657718) internal successors, (232), 149 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 236 transitions. [2022-03-20 02:51:03,609 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 236 transitions. Word has length 50 [2022-03-20 02:51:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:03,610 INFO L478 AbstractCegarLoop]: Abstraction has 154 states and 236 transitions. [2022-03-20 02:51:03,610 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 236 transitions. [2022-03-20 02:51:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 02:51:03,611 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:03,612 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:03,612 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:51:03,612 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash -213156207, now seen corresponding path program 1 times [2022-03-20 02:51:03,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:03,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909057903] [2022-03-20 02:51:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:03,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:03,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:03,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:03,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909057903] [2022-03-20 02:51:03,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909057903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:03,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:03,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:03,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204840525] [2022-03-20 02:51:03,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:03,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:03,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:03,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:03,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:03,786 INFO L87 Difference]: Start difference. First operand 154 states and 236 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:06,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:06,886 INFO L93 Difference]: Finished difference Result 299 states and 455 transitions. [2022-03-20 02:51:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 02:51:06,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:06,887 INFO L225 Difference]: With dead ends: 299 [2022-03-20 02:51:06,888 INFO L226 Difference]: Without dead ends: 171 [2022-03-20 02:51:06,888 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:06,889 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 24 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:06,889 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 489 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:51:06,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-03-20 02:51:06,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-03-20 02:51:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5503355704697988) internal successors, (231), 149 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) [2022-03-20 02:51:06,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 235 transitions. [2022-03-20 02:51:06,896 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 235 transitions. Word has length 63 [2022-03-20 02:51:06,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:06,897 INFO L478 AbstractCegarLoop]: Abstraction has 154 states and 235 transitions. [2022-03-20 02:51:06,897 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:06,897 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 235 transitions. [2022-03-20 02:51:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:51:06,898 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:06,898 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:06,898 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:51:06,898 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash 369840513, now seen corresponding path program 1 times [2022-03-20 02:51:06,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:06,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852121962] [2022-03-20 02:51:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:06,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:07,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:07,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852121962] [2022-03-20 02:51:07,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852121962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:07,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:07,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:07,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191033719] [2022-03-20 02:51:07,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:07,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:07,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:07,045 INFO L87 Difference]: Start difference. First operand 154 states and 235 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:09,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:11,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:12,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:12,291 INFO L93 Difference]: Finished difference Result 399 states and 616 transitions. [2022-03-20 02:51:12,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:12,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:51:12,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:12,293 INFO L225 Difference]: With dead ends: 399 [2022-03-20 02:51:12,293 INFO L226 Difference]: Without dead ends: 271 [2022-03-20 02:51:12,294 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:12,295 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 150 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:12,295 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 02:51:12,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-20 02:51:12,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 165. [2022-03-20 02:51:12,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.5375) internal successors, (246), 160 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 250 transitions. [2022-03-20 02:51:12,306 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 250 transitions. Word has length 64 [2022-03-20 02:51:12,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:12,307 INFO L478 AbstractCegarLoop]: Abstraction has 165 states and 250 transitions. [2022-03-20 02:51:12,307 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 250 transitions. [2022-03-20 02:51:12,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:51:12,308 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:12,308 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:12,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:51:12,309 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:12,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:12,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2038223339, now seen corresponding path program 1 times [2022-03-20 02:51:12,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:12,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026481568] [2022-03-20 02:51:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:12,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:12,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:12,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026481568] [2022-03-20 02:51:12,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026481568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:12,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:12,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:12,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550963327] [2022-03-20 02:51:12,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:12,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:12,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:12,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:12,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:12,428 INFO L87 Difference]: Start difference. First operand 165 states and 250 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:15,007 INFO L93 Difference]: Finished difference Result 410 states and 630 transitions. [2022-03-20 02:51:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:15,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:51:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:15,009 INFO L225 Difference]: With dead ends: 410 [2022-03-20 02:51:15,009 INFO L226 Difference]: Without dead ends: 271 [2022-03-20 02:51:15,010 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:15,010 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 148 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:15,011 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:51:15,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-20 02:51:15,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 166. [2022-03-20 02:51:15,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.5279503105590062) internal successors, (246), 161 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:15,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 250 transitions. [2022-03-20 02:51:15,017 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 250 transitions. Word has length 64 [2022-03-20 02:51:15,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:15,017 INFO L478 AbstractCegarLoop]: Abstraction has 166 states and 250 transitions. [2022-03-20 02:51:15,017 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:15,018 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 250 transitions. [2022-03-20 02:51:15,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:51:15,019 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:15,019 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:15,019 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:51:15,019 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:15,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash -923216500, now seen corresponding path program 1 times [2022-03-20 02:51:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:15,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165969643] [2022-03-20 02:51:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:15,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:15,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:15,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165969643] [2022-03-20 02:51:15,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165969643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:15,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:15,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:15,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278060443] [2022-03-20 02:51:15,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:15,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:15,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:15,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:15,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:15,168 INFO L87 Difference]: Start difference. First operand 166 states and 250 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:18,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:18,610 INFO L93 Difference]: Finished difference Result 411 states and 629 transitions. [2022-03-20 02:51:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:51:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:18,611 INFO L225 Difference]: With dead ends: 411 [2022-03-20 02:51:18,612 INFO L226 Difference]: Without dead ends: 271 [2022-03-20 02:51:18,612 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:18,613 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:18,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:51:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-20 02:51:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 171. [2022-03-20 02:51:18,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5301204819277108) internal successors, (254), 166 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 258 transitions. [2022-03-20 02:51:18,622 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 258 transitions. Word has length 64 [2022-03-20 02:51:18,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:18,622 INFO L478 AbstractCegarLoop]: Abstraction has 171 states and 258 transitions. [2022-03-20 02:51:18,622 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:18,623 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 258 transitions. [2022-03-20 02:51:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 02:51:18,623 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:18,624 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:18,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:51:18,624 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:18,624 INFO L85 PathProgramCache]: Analyzing trace with hash -855656499, now seen corresponding path program 1 times [2022-03-20 02:51:18,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:18,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898693177] [2022-03-20 02:51:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:18,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:18,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:18,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898693177] [2022-03-20 02:51:18,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898693177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:18,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:18,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:18,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076375893] [2022-03-20 02:51:18,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:18,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:18,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:18,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:18,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:18,753 INFO L87 Difference]: Start difference. First operand 171 states and 258 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:20,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:21,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:21,993 INFO L93 Difference]: Finished difference Result 415 states and 635 transitions. [2022-03-20 02:51:21,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:21,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 02:51:21,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:21,994 INFO L225 Difference]: With dead ends: 415 [2022-03-20 02:51:21,994 INFO L226 Difference]: Without dead ends: 270 [2022-03-20 02:51:21,995 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:21,995 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 140 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:21,996 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:51:21,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-03-20 02:51:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 172. [2022-03-20 02:51:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5209580838323353) internal successors, (254), 167 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:22,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 258 transitions. [2022-03-20 02:51:22,002 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 258 transitions. Word has length 64 [2022-03-20 02:51:22,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:22,002 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 258 transitions. [2022-03-20 02:51:22,002 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 258 transitions. [2022-03-20 02:51:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 02:51:22,003 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:22,003 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:22,003 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:51:22,003 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:22,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:22,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2032266554, now seen corresponding path program 1 times [2022-03-20 02:51:22,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:22,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345815016] [2022-03-20 02:51:22,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:22,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:22,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:22,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:22,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345815016] [2022-03-20 02:51:22,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345815016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:22,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:22,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:22,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917690000] [2022-03-20 02:51:22,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:22,123 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:22,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:22,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:22,124 INFO L87 Difference]: Start difference. First operand 172 states and 258 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) [2022-03-20 02:51:24,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:25,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:25,593 INFO L93 Difference]: Finished difference Result 331 states and 500 transitions. [2022-03-20 02:51:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:25,593 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 [2022-03-20 02:51:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:25,594 INFO L225 Difference]: With dead ends: 331 [2022-03-20 02:51:25,594 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 02:51:25,595 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:25,595 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:25,595 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 02:51:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 02:51:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 172. [2022-03-20 02:51:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5149700598802396) internal successors, (253), 167 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 257 transitions. [2022-03-20 02:51:25,600 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 257 transitions. Word has length 65 [2022-03-20 02:51:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:25,600 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 257 transitions. [2022-03-20 02:51:25,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 257 transitions. [2022-03-20 02:51:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:51:25,601 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:25,601 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:25,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:51:25,601 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash 633197050, now seen corresponding path program 1 times [2022-03-20 02:51:25,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:25,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602289208] [2022-03-20 02:51:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:25,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:25,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:25,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602289208] [2022-03-20 02:51:25,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602289208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:25,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:25,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:25,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664139225] [2022-03-20 02:51:25,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:25,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:25,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:25,697 INFO L87 Difference]: Start difference. First operand 172 states and 257 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) [2022-03-20 02:51:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:28,061 INFO L93 Difference]: Finished difference Result 331 states and 499 transitions. [2022-03-20 02:51:28,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:28,061 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 [2022-03-20 02:51:28,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:28,062 INFO L225 Difference]: With dead ends: 331 [2022-03-20 02:51:28,062 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 02:51:28,063 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:28,063 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 20 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:28,063 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:51:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 02:51:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 172. [2022-03-20 02:51:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5089820359281436) internal successors, (252), 167 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 256 transitions. [2022-03-20 02:51:28,068 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 256 transitions. Word has length 66 [2022-03-20 02:51:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:28,068 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 256 transitions. [2022-03-20 02:51:28,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 256 transitions. [2022-03-20 02:51:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:51:28,071 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:28,071 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:28,071 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:51:28,072 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:28,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1476478079, now seen corresponding path program 1 times [2022-03-20 02:51:28,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:28,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724952754] [2022-03-20 02:51:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:28,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:28,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724952754] [2022-03-20 02:51:28,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724952754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:28,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:28,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662439186] [2022-03-20 02:51:28,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:28,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:28,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:28,164 INFO L87 Difference]: Start difference. First operand 172 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:31,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:31,027 INFO L93 Difference]: Finished difference Result 321 states and 485 transitions. [2022-03-20 02:51:31,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:31,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 02:51:31,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:31,028 INFO L225 Difference]: With dead ends: 321 [2022-03-20 02:51:31,029 INFO L226 Difference]: Without dead ends: 175 [2022-03-20 02:51:31,029 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:31,029 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 11 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:31,030 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 511 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:51:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-03-20 02:51:31,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2022-03-20 02:51:31,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5029940119760479) internal successors, (251), 167 states have internal predecessors, (251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 255 transitions. [2022-03-20 02:51:31,033 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 255 transitions. Word has length 67 [2022-03-20 02:51:31,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:31,034 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 255 transitions. [2022-03-20 02:51:31,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:31,034 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 255 transitions. [2022-03-20 02:51:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:51:31,034 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:31,034 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:31,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:51:31,035 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:31,035 INFO L85 PathProgramCache]: Analyzing trace with hash 415908008, now seen corresponding path program 1 times [2022-03-20 02:51:31,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:31,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981680813] [2022-03-20 02:51:31,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:31,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:31,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981680813] [2022-03-20 02:51:31,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981680813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:31,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:31,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041733608] [2022-03-20 02:51:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:31,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:31,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:31,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:31,122 INFO L87 Difference]: Start difference. First operand 172 states and 255 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:34,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:34,006 INFO L93 Difference]: Finished difference Result 359 states and 540 transitions. [2022-03-20 02:51:34,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:34,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 02:51:34,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:34,008 INFO L225 Difference]: With dead ends: 359 [2022-03-20 02:51:34,008 INFO L226 Difference]: Without dead ends: 213 [2022-03-20 02:51:34,008 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:34,009 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 30 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:34,009 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 513 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:51:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-20 02:51:34,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 194. [2022-03-20 02:51:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.507936507936508) internal successors, (285), 189 states have internal predecessors, (285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:34,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 289 transitions. [2022-03-20 02:51:34,013 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 289 transitions. Word has length 67 [2022-03-20 02:51:34,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:34,013 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 289 transitions. [2022-03-20 02:51:34,013 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 289 transitions. [2022-03-20 02:51:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 02:51:34,014 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:34,014 INFO L499 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] [2022-03-20 02:51:34,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:51:34,014 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash 520696844, now seen corresponding path program 1 times [2022-03-20 02:51:34,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:34,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991563044] [2022-03-20 02:51:34,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:34,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:34,128 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:34,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:34,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991563044] [2022-03-20 02:51:34,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991563044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:34,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:34,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:34,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519548564] [2022-03-20 02:51:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:34,129 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:34,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:34,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:34,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:34,130 INFO L87 Difference]: Start difference. First operand 194 states and 289 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:35,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:37,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:39,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:39,931 INFO L93 Difference]: Finished difference Result 379 states and 571 transitions. [2022-03-20 02:51:39,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:39,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-03-20 02:51:39,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:39,932 INFO L225 Difference]: With dead ends: 379 [2022-03-20 02:51:39,932 INFO L226 Difference]: Without dead ends: 211 [2022-03-20 02:51:39,933 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:39,933 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 35 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:39,934 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 02:51:39,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-03-20 02:51:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 194. [2022-03-20 02:51:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.5026455026455026) internal successors, (284), 189 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 288 transitions. [2022-03-20 02:51:39,937 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 288 transitions. Word has length 80 [2022-03-20 02:51:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:39,938 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 288 transitions. [2022-03-20 02:51:39,938 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 288 transitions. [2022-03-20 02:51:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 02:51:39,938 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:39,938 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:39,938 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:51:39,939 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:39,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:39,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1404555275, now seen corresponding path program 1 times [2022-03-20 02:51:39,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:39,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184794622] [2022-03-20 02:51:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:39,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:40,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-20 02:51:40,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:40,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184794622] [2022-03-20 02:51:40,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184794622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:40,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:40,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:40,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387701134] [2022-03-20 02:51:40,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:40,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:40,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:40,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:40,045 INFO L87 Difference]: Start difference. First operand 194 states and 288 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:42,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:44,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:44,554 INFO L93 Difference]: Finished difference Result 390 states and 586 transitions. [2022-03-20 02:51:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:44,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 02:51:44,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:44,555 INFO L225 Difference]: With dead ends: 390 [2022-03-20 02:51:44,555 INFO L226 Difference]: Without dead ends: 222 [2022-03-20 02:51:44,556 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:44,556 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 20 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:44,557 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 576 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:51:44,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-20 02:51:44,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 210. [2022-03-20 02:51:44,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.502439024390244) internal successors, (308), 205 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 312 transitions. [2022-03-20 02:51:44,582 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 312 transitions. Word has length 82 [2022-03-20 02:51:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:44,583 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 312 transitions. [2022-03-20 02:51:44,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:44,583 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 312 transitions. [2022-03-20 02:51:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 02:51:44,584 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:44,584 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:44,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:51:44,584 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:44,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:44,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1888193454, now seen corresponding path program 1 times [2022-03-20 02:51:44,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:44,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737353014] [2022-03-20 02:51:44,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:44,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:44,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:44,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:44,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737353014] [2022-03-20 02:51:44,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737353014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:44,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:44,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:44,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309411045] [2022-03-20 02:51:44,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:44,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:44,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:44,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:44,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:44,675 INFO L87 Difference]: Start difference. First operand 210 states and 312 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:46,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:47,930 INFO L93 Difference]: Finished difference Result 411 states and 617 transitions. [2022-03-20 02:51:47,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:47,931 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 [2022-03-20 02:51:47,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:47,932 INFO L225 Difference]: With dead ends: 411 [2022-03-20 02:51:47,932 INFO L226 Difference]: Without dead ends: 227 [2022-03-20 02:51:47,932 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:47,933 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 37 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:47,933 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:51:47,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-20 02:51:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-03-20 02:51:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.497560975609756) internal successors, (307), 205 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 311 transitions. [2022-03-20 02:51:47,937 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 311 transitions. Word has length 83 [2022-03-20 02:51:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:47,937 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 311 transitions. [2022-03-20 02:51:47,937 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:47,937 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 311 transitions. [2022-03-20 02:51:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:51:47,938 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:47,938 INFO L499 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] [2022-03-20 02:51:47,938 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:51:47,938 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:47,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash 678079044, now seen corresponding path program 1 times [2022-03-20 02:51:47,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:47,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143945042] [2022-03-20 02:51:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:47,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:48,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:48,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143945042] [2022-03-20 02:51:48,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143945042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:48,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:48,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:48,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042923387] [2022-03-20 02:51:48,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:48,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:48,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:48,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:48,024 INFO L87 Difference]: Start difference. First operand 210 states and 311 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:49,948 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 [] [2022-03-20 02:51:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:51,605 INFO L93 Difference]: Finished difference Result 492 states and 743 transitions. [2022-03-20 02:51:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:51,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 02:51:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:51,606 INFO L225 Difference]: With dead ends: 492 [2022-03-20 02:51:51,606 INFO L226 Difference]: Without dead ends: 308 [2022-03-20 02:51:51,607 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:51,607 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 144 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:51,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:51:51,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-03-20 02:51:51,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-03-20 02:51:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4829268292682927) internal successors, (304), 205 states have internal predecessors, (304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 308 transitions. [2022-03-20 02:51:51,611 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 308 transitions. Word has length 84 [2022-03-20 02:51:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:51,612 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 308 transitions. [2022-03-20 02:51:51,612 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 308 transitions. [2022-03-20 02:51:51,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 02:51:51,612 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:51,612 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:51,612 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:51:51,613 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:51,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:51,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1922791479, now seen corresponding path program 1 times [2022-03-20 02:51:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:51,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909396401] [2022-03-20 02:51:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:51,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:51,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:51,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:51,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909396401] [2022-03-20 02:51:51,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909396401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:51,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:51,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:51,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607916451] [2022-03-20 02:51:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:51,723 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:51,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:51,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:51,723 INFO L87 Difference]: Start difference. First operand 210 states and 308 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:53,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:55,861 INFO L93 Difference]: Finished difference Result 492 states and 737 transitions. [2022-03-20 02:51:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:55,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 02:51:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:55,863 INFO L225 Difference]: With dead ends: 492 [2022-03-20 02:51:55,863 INFO L226 Difference]: Without dead ends: 308 [2022-03-20 02:51:55,863 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:55,864 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 142 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:55,864 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 02:51:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-03-20 02:51:55,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-03-20 02:51:55,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4682926829268292) internal successors, (301), 205 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:55,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 305 transitions. [2022-03-20 02:51:55,868 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 305 transitions. Word has length 85 [2022-03-20 02:51:55,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:55,868 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 305 transitions. [2022-03-20 02:51:55,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 305 transitions. [2022-03-20 02:51:55,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-20 02:51:55,869 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:55,869 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:55,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:51:55,869 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:55,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:55,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1358981921, now seen corresponding path program 1 times [2022-03-20 02:51:55,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:55,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810151653] [2022-03-20 02:51:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:55,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:55,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:51:55,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810151653] [2022-03-20 02:51:55,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810151653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:55,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:55,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:55,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277668227] [2022-03-20 02:51:55,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:55,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:55,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:55,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:55,978 INFO L87 Difference]: Start difference. First operand 210 states and 305 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:58,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:59,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:00,399 INFO L93 Difference]: Finished difference Result 511 states and 757 transitions. [2022-03-20 02:52:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:00,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-20 02:52:00,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:00,401 INFO L225 Difference]: With dead ends: 511 [2022-03-20 02:52:00,401 INFO L226 Difference]: Without dead ends: 327 [2022-03-20 02:52:00,401 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:00,401 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 117 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:00,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 354 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 02:52:00,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-20 02:52:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 250. [2022-03-20 02:52:00,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.5020408163265306) internal successors, (368), 245 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) [2022-03-20 02:52:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 372 transitions. [2022-03-20 02:52:00,406 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 372 transitions. Word has length 89 [2022-03-20 02:52:00,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:00,406 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 372 transitions. [2022-03-20 02:52:00,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 372 transitions. [2022-03-20 02:52:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 02:52:00,407 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:00,407 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:00,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:52:00,407 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:00,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:00,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1522772933, now seen corresponding path program 1 times [2022-03-20 02:52:00,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:00,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395418593] [2022-03-20 02:52:00,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:00,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:00,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:00,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395418593] [2022-03-20 02:52:00,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395418593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:00,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:00,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:00,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954416233] [2022-03-20 02:52:00,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:00,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:00,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:00,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:00,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:00,530 INFO L87 Difference]: Start difference. First operand 250 states and 372 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:03,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:05,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:05,845 INFO L93 Difference]: Finished difference Result 572 states and 861 transitions. [2022-03-20 02:52:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:05,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-20 02:52:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:05,846 INFO L225 Difference]: With dead ends: 572 [2022-03-20 02:52:05,846 INFO L226 Difference]: Without dead ends: 348 [2022-03-20 02:52:05,847 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:05,847 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 80 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:05,847 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 471 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 02:52:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-20 02:52:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 292. [2022-03-20 02:52:05,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5226480836236933) internal successors, (437), 287 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 441 transitions. [2022-03-20 02:52:05,852 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 441 transitions. Word has length 90 [2022-03-20 02:52:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:05,852 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 441 transitions. [2022-03-20 02:52:05,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 441 transitions. [2022-03-20 02:52:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 02:52:05,853 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:05,853 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:05,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:52:05,854 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:05,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:05,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1770919427, now seen corresponding path program 1 times [2022-03-20 02:52:05,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:05,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651163978] [2022-03-20 02:52:05,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:05,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:05,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:05,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651163978] [2022-03-20 02:52:05,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651163978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:05,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:05,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:05,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903977633] [2022-03-20 02:52:05,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:05,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:05,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:05,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:05,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:05,960 INFO L87 Difference]: Start difference. First operand 292 states and 441 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:07,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:09,447 INFO L93 Difference]: Finished difference Result 605 states and 919 transitions. [2022-03-20 02:52:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:09,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-20 02:52:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:09,449 INFO L225 Difference]: With dead ends: 605 [2022-03-20 02:52:09,449 INFO L226 Difference]: Without dead ends: 339 [2022-03-20 02:52:09,449 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:09,450 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 34 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:09,450 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 02:52:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-20 02:52:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 316. [2022-03-20 02:52:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5209003215434083) internal successors, (473), 311 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 477 transitions. [2022-03-20 02:52:09,456 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 477 transitions. Word has length 90 [2022-03-20 02:52:09,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:09,457 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 477 transitions. [2022-03-20 02:52:09,457 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 477 transitions. [2022-03-20 02:52:09,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-20 02:52:09,457 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:09,458 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:09,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:52:09,458 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:09,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:09,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1739449075, now seen corresponding path program 1 times [2022-03-20 02:52:09,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:09,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496929554] [2022-03-20 02:52:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:09,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:09,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:09,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496929554] [2022-03-20 02:52:09,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496929554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:09,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:09,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:09,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849644480] [2022-03-20 02:52:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:09,574 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:09,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:09,575 INFO L87 Difference]: Start difference. First operand 316 states and 477 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:11,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:13,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:14,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:14,862 INFO L93 Difference]: Finished difference Result 702 states and 1073 transitions. [2022-03-20 02:52:14,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:14,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-20 02:52:14,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:14,864 INFO L225 Difference]: With dead ends: 702 [2022-03-20 02:52:14,864 INFO L226 Difference]: Without dead ends: 412 [2022-03-20 02:52:14,864 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:14,865 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 140 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:14,865 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 358 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 02:52:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-03-20 02:52:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 316. [2022-03-20 02:52:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5080385852090032) internal successors, (469), 311 states have internal predecessors, (469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:14,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 473 transitions. [2022-03-20 02:52:14,871 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 473 transitions. Word has length 103 [2022-03-20 02:52:14,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:14,871 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 473 transitions. [2022-03-20 02:52:14,871 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:14,871 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 473 transitions. [2022-03-20 02:52:14,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 02:52:14,872 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:14,872 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:14,872 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:52:14,872 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:14,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:14,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2134086527, now seen corresponding path program 1 times [2022-03-20 02:52:14,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:14,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305610678] [2022-03-20 02:52:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:14,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:14,984 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:14,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:14,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305610678] [2022-03-20 02:52:14,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305610678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:14,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:14,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:14,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66092472] [2022-03-20 02:52:14,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:14,984 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:14,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:14,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:14,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:14,985 INFO L87 Difference]: Start difference. First operand 316 states and 473 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:16,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:18,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:18,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:18,959 INFO L93 Difference]: Finished difference Result 694 states and 1054 transitions. [2022-03-20 02:52:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:18,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-03-20 02:52:18,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:18,961 INFO L225 Difference]: With dead ends: 694 [2022-03-20 02:52:18,961 INFO L226 Difference]: Without dead ends: 404 [2022-03-20 02:52:18,962 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:18,962 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 136 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:18,962 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 374 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:52:18,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-20 02:52:18,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 316. [2022-03-20 02:52:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.4919614147909968) internal successors, (464), 311 states have internal predecessors, (464), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:18,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 468 transitions. [2022-03-20 02:52:18,968 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 468 transitions. Word has length 106 [2022-03-20 02:52:18,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:18,968 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 468 transitions. [2022-03-20 02:52:18,968 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:18,968 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 468 transitions. [2022-03-20 02:52:18,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 02:52:18,969 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:18,969 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:18,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:52:18,969 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1758801896, now seen corresponding path program 1 times [2022-03-20 02:52:18,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:18,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97461237] [2022-03-20 02:52:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:18,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:19,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:19,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97461237] [2022-03-20 02:52:19,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97461237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:19,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:19,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:19,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249569734] [2022-03-20 02:52:19,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:19,072 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:19,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:19,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:19,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:19,073 INFO L87 Difference]: Start difference. First operand 316 states and 468 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:20,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:22,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:22,496 INFO L93 Difference]: Finished difference Result 694 states and 1044 transitions. [2022-03-20 02:52:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:22,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 02:52:22,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:22,498 INFO L225 Difference]: With dead ends: 694 [2022-03-20 02:52:22,498 INFO L226 Difference]: Without dead ends: 404 [2022-03-20 02:52:22,498 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:22,499 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 124 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:22,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 384 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:52:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-20 02:52:22,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 322. [2022-03-20 02:52:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.4921135646687698) internal successors, (473), 317 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 477 transitions. [2022-03-20 02:52:22,513 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 477 transitions. Word has length 112 [2022-03-20 02:52:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:22,513 INFO L478 AbstractCegarLoop]: Abstraction has 322 states and 477 transitions. [2022-03-20 02:52:22,514 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 477 transitions. [2022-03-20 02:52:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 02:52:22,514 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:22,515 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:22,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:52:22,515 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:22,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:22,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1813194794, now seen corresponding path program 1 times [2022-03-20 02:52:22,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:22,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381017445] [2022-03-20 02:52:22,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:22,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 02:52:22,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:22,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381017445] [2022-03-20 02:52:22,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381017445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:22,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:22,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:22,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714433893] [2022-03-20 02:52:22,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:22,616 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:22,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:22,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:22,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:22,617 INFO L87 Difference]: Start difference. First operand 322 states and 477 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:23,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:25,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:25,126 INFO L93 Difference]: Finished difference Result 908 states and 1364 transitions. [2022-03-20 02:52:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:25,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 02:52:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:25,129 INFO L225 Difference]: With dead ends: 908 [2022-03-20 02:52:25,129 INFO L226 Difference]: Without dead ends: 612 [2022-03-20 02:52:25,129 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:25,130 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:25,130 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 442 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:52:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-03-20 02:52:25,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2022-03-20 02:52:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 607 states have (on average 1.4892915980230643) internal successors, (904), 607 states have internal predecessors, (904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 908 transitions. [2022-03-20 02:52:25,140 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 908 transitions. Word has length 112 [2022-03-20 02:52:25,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:25,140 INFO L478 AbstractCegarLoop]: Abstraction has 612 states and 908 transitions. [2022-03-20 02:52:25,140 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:25,140 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 908 transitions. [2022-03-20 02:52:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 02:52:25,141 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:25,141 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:25,141 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:52:25,141 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1749805076, now seen corresponding path program 1 times [2022-03-20 02:52:25,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:25,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101877497] [2022-03-20 02:52:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:25,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:25,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 02:52:25,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:25,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101877497] [2022-03-20 02:52:25,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101877497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:25,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:25,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:25,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726475294] [2022-03-20 02:52:25,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:25,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:25,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:25,237 INFO L87 Difference]: Start difference. First operand 612 states and 908 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:27,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:27,514 INFO L93 Difference]: Finished difference Result 1225 states and 1823 transitions. [2022-03-20 02:52:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:27,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 02:52:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:27,517 INFO L225 Difference]: With dead ends: 1225 [2022-03-20 02:52:27,517 INFO L226 Difference]: Without dead ends: 639 [2022-03-20 02:52:27,518 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:27,519 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:27,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 419 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 251 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:52:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-03-20 02:52:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2022-03-20 02:52:27,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 634 states have (on average 1.4810725552050472) internal successors, (939), 634 states have internal predecessors, (939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 943 transitions. [2022-03-20 02:52:27,528 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 943 transitions. Word has length 112 [2022-03-20 02:52:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:27,528 INFO L478 AbstractCegarLoop]: Abstraction has 639 states and 943 transitions. [2022-03-20 02:52:27,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 943 transitions. [2022-03-20 02:52:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 02:52:27,530 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:27,530 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:27,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:52:27,530 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash -208769710, now seen corresponding path program 1 times [2022-03-20 02:52:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:27,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007363460] [2022-03-20 02:52:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-20 02:52:27,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:27,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007363460] [2022-03-20 02:52:27,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007363460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:27,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:27,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:27,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611827683] [2022-03-20 02:52:27,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:27,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:27,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:27,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:27,604 INFO L87 Difference]: Start difference. First operand 639 states and 943 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:29,564 INFO L93 Difference]: Finished difference Result 1254 states and 1859 transitions. [2022-03-20 02:52:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:29,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 02:52:29,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:29,567 INFO L225 Difference]: With dead ends: 1254 [2022-03-20 02:52:29,567 INFO L226 Difference]: Without dead ends: 641 [2022-03-20 02:52:29,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:29,568 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:29,568 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 398 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 02:52:29,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-03-20 02:52:29,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2022-03-20 02:52:29,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 636 states have (on average 1.479559748427673) internal successors, (941), 636 states have internal predecessors, (941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:29,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 945 transitions. [2022-03-20 02:52:29,579 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 945 transitions. Word has length 112 [2022-03-20 02:52:29,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:29,579 INFO L478 AbstractCegarLoop]: Abstraction has 641 states and 945 transitions. [2022-03-20 02:52:29,579 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:29,579 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 945 transitions. [2022-03-20 02:52:29,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:52:29,581 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:29,581 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:29,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:52:29,581 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash -888968187, now seen corresponding path program 1 times [2022-03-20 02:52:29,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:29,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078911680] [2022-03-20 02:52:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:29,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:52:29,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:29,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078911680] [2022-03-20 02:52:29,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078911680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:29,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:29,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:29,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274056337] [2022-03-20 02:52:29,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:29,699 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:29,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:29,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:29,700 INFO L87 Difference]: Start difference. First operand 641 states and 945 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:32,118 INFO L93 Difference]: Finished difference Result 1417 states and 2102 transitions. [2022-03-20 02:52:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:32,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:52:32,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:32,121 INFO L225 Difference]: With dead ends: 1417 [2022-03-20 02:52:32,121 INFO L226 Difference]: Without dead ends: 804 [2022-03-20 02:52:32,122 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:32,122 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 107 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:32,123 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 396 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:52:32,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-03-20 02:52:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 591. [2022-03-20 02:52:32,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 586 states have (on average 1.4897610921501707) internal successors, (873), 586 states have internal predecessors, (873), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:32,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 877 transitions. [2022-03-20 02:52:32,140 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 877 transitions. Word has length 131 [2022-03-20 02:52:32,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:32,141 INFO L478 AbstractCegarLoop]: Abstraction has 591 states and 877 transitions. [2022-03-20 02:52:32,141 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:32,141 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 877 transitions. [2022-03-20 02:52:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-20 02:52:32,142 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:32,142 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:32,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:52:32,142 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:32,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:32,143 INFO L85 PathProgramCache]: Analyzing trace with hash -678377778, now seen corresponding path program 1 times [2022-03-20 02:52:32,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:32,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254750439] [2022-03-20 02:52:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:32,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:52:32,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:32,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254750439] [2022-03-20 02:52:32,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254750439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:32,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:32,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:32,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123917725] [2022-03-20 02:52:32,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:32,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:32,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:32,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:32,262 INFO L87 Difference]: Start difference. First operand 591 states and 877 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:34,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:36,791 INFO L93 Difference]: Finished difference Result 1238 states and 1848 transitions. [2022-03-20 02:52:36,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:36,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-20 02:52:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:36,793 INFO L225 Difference]: With dead ends: 1238 [2022-03-20 02:52:36,793 INFO L226 Difference]: Without dead ends: 675 [2022-03-20 02:52:36,794 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:36,794 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 76 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:36,794 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 650 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 582 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:52:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-03-20 02:52:36,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 623. [2022-03-20 02:52:36,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 618 states have (on average 1.4919093851132685) internal successors, (922), 618 states have internal predecessors, (922), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 926 transitions. [2022-03-20 02:52:36,804 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 926 transitions. Word has length 159 [2022-03-20 02:52:36,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:36,804 INFO L478 AbstractCegarLoop]: Abstraction has 623 states and 926 transitions. [2022-03-20 02:52:36,804 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 926 transitions. [2022-03-20 02:52:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 02:52:36,805 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:36,805 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:36,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 02:52:36,805 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash 6795896, now seen corresponding path program 1 times [2022-03-20 02:52:36,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:36,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870731784] [2022-03-20 02:52:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:36,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:36,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:52:36,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:36,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870731784] [2022-03-20 02:52:36,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870731784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:36,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:36,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:36,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548757316] [2022-03-20 02:52:36,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:36,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:36,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:36,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:36,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:36,897 INFO L87 Difference]: Start difference. First operand 623 states and 926 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) [2022-03-20 02:52:38,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:39,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:39,472 INFO L93 Difference]: Finished difference Result 1429 states and 2128 transitions. [2022-03-20 02:52:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:39,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-20 02:52:39,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:39,474 INFO L225 Difference]: With dead ends: 1429 [2022-03-20 02:52:39,474 INFO L226 Difference]: Without dead ends: 834 [2022-03-20 02:52:39,475 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:39,476 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 109 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:39,476 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 388 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:52:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-03-20 02:52:39,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 697. [2022-03-20 02:52:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 692 states have (on average 1.5) internal successors, (1038), 692 states have internal predecessors, (1038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1042 transitions. [2022-03-20 02:52:39,487 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1042 transitions. Word has length 164 [2022-03-20 02:52:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:39,488 INFO L478 AbstractCegarLoop]: Abstraction has 697 states and 1042 transitions. [2022-03-20 02:52:39,488 INFO L479 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) [2022-03-20 02:52:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1042 transitions. [2022-03-20 02:52:39,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-20 02:52:39,489 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:39,489 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:39,489 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:52:39,489 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:39,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1901438780, now seen corresponding path program 1 times [2022-03-20 02:52:39,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:39,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385508148] [2022-03-20 02:52:39,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:39,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:52:39,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:39,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385508148] [2022-03-20 02:52:39,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385508148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:39,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:39,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:39,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191040185] [2022-03-20 02:52:39,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:39,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:39,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:39,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:39,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:39,599 INFO L87 Difference]: Start difference. First operand 697 states and 1042 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:40,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:43,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:43,989 INFO L93 Difference]: Finished difference Result 1497 states and 2232 transitions. [2022-03-20 02:52:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:43,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-03-20 02:52:43,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:43,993 INFO L225 Difference]: With dead ends: 1497 [2022-03-20 02:52:43,993 INFO L226 Difference]: Without dead ends: 828 [2022-03-20 02:52:43,994 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:43,995 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 108 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:43,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 394 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 02:52:43,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-03-20 02:52:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 697. [2022-03-20 02:52:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 692 states have (on average 1.4942196531791907) internal successors, (1034), 692 states have internal predecessors, (1034), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1038 transitions. [2022-03-20 02:52:44,006 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1038 transitions. Word has length 165 [2022-03-20 02:52:44,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:44,006 INFO L478 AbstractCegarLoop]: Abstraction has 697 states and 1038 transitions. [2022-03-20 02:52:44,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1038 transitions. [2022-03-20 02:52:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 02:52:44,007 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:44,008 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:44,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:52:44,008 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:44,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1967200105, now seen corresponding path program 1 times [2022-03-20 02:52:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:44,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105504560] [2022-03-20 02:52:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:44,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:44,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 02:52:44,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:44,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105504560] [2022-03-20 02:52:44,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105504560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:44,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:44,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:44,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132131474] [2022-03-20 02:52:44,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:44,093 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:44,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:44,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:44,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:44,093 INFO L87 Difference]: Start difference. First operand 697 states and 1038 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:45,131 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 [] [2022-03-20 02:52:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:46,628 INFO L93 Difference]: Finished difference Result 1699 states and 2553 transitions. [2022-03-20 02:52:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:46,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-20 02:52:46,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:46,632 INFO L225 Difference]: With dead ends: 1699 [2022-03-20 02:52:46,632 INFO L226 Difference]: Without dead ends: 1030 [2022-03-20 02:52:46,633 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:46,634 INFO L913 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:46,634 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:52:46,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-03-20 02:52:46,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-03-20 02:52:46,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1025 states have (on average 1.4965853658536585) internal successors, (1534), 1025 states have internal predecessors, (1534), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:46,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1538 transitions. [2022-03-20 02:52:46,650 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1538 transitions. Word has length 173 [2022-03-20 02:52:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:46,650 INFO L478 AbstractCegarLoop]: Abstraction has 1030 states and 1538 transitions. [2022-03-20 02:52:46,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1538 transitions. [2022-03-20 02:52:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-20 02:52:46,652 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:46,652 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:46,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:52:46,652 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1843703720, now seen corresponding path program 1 times [2022-03-20 02:52:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:46,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522071172] [2022-03-20 02:52:46,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:52:46,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:46,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522071172] [2022-03-20 02:52:46,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522071172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:46,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:46,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:46,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137960199] [2022-03-20 02:52:46,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:46,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:46,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:46,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:46,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:46,751 INFO L87 Difference]: Start difference. First operand 1030 states and 1538 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:48,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:48,566 INFO L93 Difference]: Finished difference Result 2364 states and 3552 transitions. [2022-03-20 02:52:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:48,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-20 02:52:48,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:48,570 INFO L225 Difference]: With dead ends: 2364 [2022-03-20 02:52:48,570 INFO L226 Difference]: Without dead ends: 1362 [2022-03-20 02:52:48,571 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:48,572 INFO L913 BasicCegarLoop]: 379 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:48,572 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 573 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:52:48,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-03-20 02:52:48,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1362. [2022-03-20 02:52:48,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1357 states have (on average 1.4981577008106117) internal successors, (2033), 1357 states have internal predecessors, (2033), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 2037 transitions. [2022-03-20 02:52:48,590 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 2037 transitions. Word has length 174 [2022-03-20 02:52:48,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:48,590 INFO L478 AbstractCegarLoop]: Abstraction has 1362 states and 2037 transitions. [2022-03-20 02:52:48,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 2037 transitions. [2022-03-20 02:52:48,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-20 02:52:48,592 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:48,593 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:48,593 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:52:48,593 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:48,593 INFO L85 PathProgramCache]: Analyzing trace with hash 640421465, now seen corresponding path program 1 times [2022-03-20 02:52:48,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:48,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385740187] [2022-03-20 02:52:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:48,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-20 02:52:48,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:48,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385740187] [2022-03-20 02:52:48,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385740187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:48,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:48,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:48,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749606260] [2022-03-20 02:52:48,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:48,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:48,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:48,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:48,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:48,721 INFO L87 Difference]: Start difference. First operand 1362 states and 2037 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:51,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:51,585 INFO L93 Difference]: Finished difference Result 3034 states and 4559 transitions. [2022-03-20 02:52:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:51,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-20 02:52:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:51,590 INFO L225 Difference]: With dead ends: 3034 [2022-03-20 02:52:51,590 INFO L226 Difference]: Without dead ends: 1700 [2022-03-20 02:52:51,591 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:51,592 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 152 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:51,592 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 382 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 250 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:52:51,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-03-20 02:52:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1700. [2022-03-20 02:52:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1695 states have (on average 1.5014749262536873) internal successors, (2545), 1695 states have internal predecessors, (2545), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2549 transitions. [2022-03-20 02:52:51,617 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2549 transitions. Word has length 241 [2022-03-20 02:52:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:51,617 INFO L478 AbstractCegarLoop]: Abstraction has 1700 states and 2549 transitions. [2022-03-20 02:52:51,617 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2549 transitions. [2022-03-20 02:52:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-20 02:52:51,620 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:51,620 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:51,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:52:51,620 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:51,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:51,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1775818222, now seen corresponding path program 1 times [2022-03-20 02:52:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:51,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296987454] [2022-03-20 02:52:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:51,790 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-20 02:52:51,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:51,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296987454] [2022-03-20 02:52:51,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296987454] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:52:51,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329345377] [2022-03-20 02:52:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:51,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:52:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:52:51,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:52:51,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 02:52:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:52,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 02:52:52,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:52:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-03-20 02:52:52,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 02:52:52,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329345377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:52,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 02:52:52,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 02:52:52,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696015942] [2022-03-20 02:52:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:52,810 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 02:52:52,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:52,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 02:52:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:52:52,810 INFO L87 Difference]: Start difference. First operand 1700 states and 2549 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:52,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:52,868 INFO L93 Difference]: Finished difference Result 3710 states and 5583 transitions. [2022-03-20 02:52:52,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 02:52:52,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-03-20 02:52:52,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:52,874 INFO L225 Difference]: With dead ends: 3710 [2022-03-20 02:52:52,874 INFO L226 Difference]: Without dead ends: 2038 [2022-03-20 02:52:52,876 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:52:52,877 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:52,877 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 383 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 02:52:52,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2022-03-20 02:52:52,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 2038. [2022-03-20 02:52:52,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 2033 states have (on average 1.5046728971962617) internal successors, (3059), 2033 states have internal predecessors, (3059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:52,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 3063 transitions. [2022-03-20 02:52:52,930 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 3063 transitions. Word has length 298 [2022-03-20 02:52:52,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:52,930 INFO L478 AbstractCegarLoop]: Abstraction has 2038 states and 3063 transitions. [2022-03-20 02:52:52,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 3063 transitions. [2022-03-20 02:52:52,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-03-20 02:52:52,934 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:52,935 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:52,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 02:52:53,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-03-20 02:52:53,148 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:53,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:53,148 INFO L85 PathProgramCache]: Analyzing trace with hash -375963140, now seen corresponding path program 1 times [2022-03-20 02:52:53,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:53,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094140269] [2022-03-20 02:52:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:53,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 779 proven. 106 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-03-20 02:52:53,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:53,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094140269] [2022-03-20 02:52:53,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094140269] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:52:53,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944129950] [2022-03-20 02:52:53,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:53,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:52:53,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:52:53,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:52:53,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 02:52:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:53,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1804 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 02:52:53,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:52:54,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2022-03-20 02:52:54,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 02:52:54,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944129950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:54,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 02:52:54,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 02:52:54,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129963587] [2022-03-20 02:52:54,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:54,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 02:52:54,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:54,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 02:52:54,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:52:54,414 INFO L87 Difference]: Start difference. First operand 2038 states and 3063 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:54,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:54,505 INFO L93 Difference]: Finished difference Result 4386 states and 6611 transitions. [2022-03-20 02:52:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 02:52:54,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 367 [2022-03-20 02:52:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:54,511 INFO L225 Difference]: With dead ends: 4386 [2022-03-20 02:52:54,511 INFO L226 Difference]: Without dead ends: 2376 [2022-03-20 02:52:54,514 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:52:54,515 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 152 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:54,516 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 382 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-20 02:52:54,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-03-20 02:52:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 2376. [2022-03-20 02:52:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2371 states have (on average 1.5073808519611978) internal successors, (3574), 2371 states have internal predecessors, (3574), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 3578 transitions. [2022-03-20 02:52:54,551 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 3578 transitions. Word has length 367 [2022-03-20 02:52:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:54,552 INFO L478 AbstractCegarLoop]: Abstraction has 2376 states and 3578 transitions. [2022-03-20 02:52:54,552 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 3578 transitions. [2022-03-20 02:52:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-03-20 02:52:54,556 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:54,557 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:54,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 02:52:54,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-03-20 02:52:54,771 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:54,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:54,772 INFO L85 PathProgramCache]: Analyzing trace with hash -675891213, now seen corresponding path program 1 times [2022-03-20 02:52:54,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:54,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192939337] [2022-03-20 02:52:54,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:54,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2022-03-20 02:52:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:54,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192939337] [2022-03-20 02:52:54,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192939337] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:54,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:54,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774787808] [2022-03-20 02:52:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:54,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:54,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:54,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:54,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:54,938 INFO L87 Difference]: Start difference. First operand 2376 states and 3578 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:56,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:59,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:59,618 INFO L93 Difference]: Finished difference Result 5302 states and 7963 transitions. [2022-03-20 02:52:59,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:59,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-03-20 02:52:59,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:59,626 INFO L225 Difference]: With dead ends: 5302 [2022-03-20 02:52:59,626 INFO L226 Difference]: Without dead ends: 2954 [2022-03-20 02:52:59,628 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:59,629 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 65 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:59,629 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 651 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 02:52:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2022-03-20 02:52:59,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2669. [2022-03-20 02:52:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2664 states have (on average 1.5093843843843844) internal successors, (4021), 2664 states have internal predecessors, (4021), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 4025 transitions. [2022-03-20 02:52:59,672 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 4025 transitions. Word has length 426 [2022-03-20 02:52:59,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:59,673 INFO L478 AbstractCegarLoop]: Abstraction has 2669 states and 4025 transitions. [2022-03-20 02:52:59,673 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:59,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 4025 transitions. [2022-03-20 02:52:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-03-20 02:52:59,698 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:59,698 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:59,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:52:59,699 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:59,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:59,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1799065481, now seen corresponding path program 1 times [2022-03-20 02:52:59,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:59,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406242431] [2022-03-20 02:52:59,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 956 proven. 24 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2022-03-20 02:53:00,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:00,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406242431] [2022-03-20 02:53:00,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406242431] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:00,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772271546] [2022-03-20 02:53:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:00,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:53:00,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:53:00,155 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) [2022-03-20 02:53:00,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 02:53:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:00,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-20 02:53:00,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:53:00,998 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:53:00,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:53:01,058 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:53:01,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:53:01,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 02:53:01,197 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 [2022-03-20 02:53:01,200 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 [2022-03-20 02:53:01,215 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 02:53:01,215 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 [2022-03-20 02:53:01,280 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 02:53:01,280 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 33 treesize of output 45 [2022-03-20 02:53:01,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 02:53:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 916 proven. 51 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2022-03-20 02:53:01,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:53:02,112 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 [2022-03-20 02:53:02,114 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 [2022-03-20 02:53:02,964 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 74 treesize of output 72 [2022-03-20 02:53:02,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-03-20 02:53:02,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-03-20 02:53:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 922 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-03-20 02:53:03,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772271546] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:03,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:53:03,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 15 [2022-03-20 02:53:03,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567401955] [2022-03-20 02:53:03,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:03,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:03,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:03,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:03,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-03-20 02:53:03,093 INFO L87 Difference]: Start difference. First operand 2669 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:04,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:04,195 INFO L93 Difference]: Finished difference Result 7272 states and 11018 transitions. [2022-03-20 02:53:04,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:04,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-03-20 02:53:04,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:04,207 INFO L225 Difference]: With dead ends: 7272 [2022-03-20 02:53:04,207 INFO L226 Difference]: Without dead ends: 4631 [2022-03-20 02:53:04,210 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-20 02:53:04,210 INFO L913 BasicCegarLoop]: 307 mSDtfsCounter, 148 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 107 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:04,210 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 843 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 285 Invalid, 0 Unknown, 107 Unchecked, 1.0s Time] [2022-03-20 02:53:04,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2022-03-20 02:53:04,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4443. [2022-03-20 02:53:04,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4443 states, 4438 states have (on average 1.5274898602974312) internal successors, (6779), 4438 states have internal predecessors, (6779), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 6783 transitions. [2022-03-20 02:53:04,279 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 6783 transitions. Word has length 426 [2022-03-20 02:53:04,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:04,279 INFO L478 AbstractCegarLoop]: Abstraction has 4443 states and 6783 transitions. [2022-03-20 02:53:04,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 6783 transitions. [2022-03-20 02:53:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-03-20 02:53:04,286 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:04,287 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:04,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 02:53:04,495 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:53:04,496 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:04,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash -586814631, now seen corresponding path program 1 times [2022-03-20 02:53:04,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:04,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424484276] [2022-03-20 02:53:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:04,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-03-20 02:53:04,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:04,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424484276] [2022-03-20 02:53:04,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424484276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:04,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:04,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:04,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613673798] [2022-03-20 02:53:04,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:04,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:04,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:04,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:04,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:04,683 INFO L87 Difference]: Start difference. First operand 4443 states and 6783 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:06,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:08,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:08,032 INFO L93 Difference]: Finished difference Result 9329 states and 14173 transitions. [2022-03-20 02:53:08,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:08,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-03-20 02:53:08,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:08,044 INFO L225 Difference]: With dead ends: 9329 [2022-03-20 02:53:08,044 INFO L226 Difference]: Without dead ends: 4914 [2022-03-20 02:53:08,047 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:08,047 INFO L913 BasicCegarLoop]: 267 mSDtfsCounter, 63 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:08,048 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 649 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:53:08,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4914 states. [2022-03-20 02:53:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4914 to 4450. [2022-03-20 02:53:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 4445 states have (on average 1.5266591676040495) internal successors, (6786), 4445 states have internal predecessors, (6786), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 6790 transitions. [2022-03-20 02:53:08,118 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 6790 transitions. Word has length 428 [2022-03-20 02:53:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:08,119 INFO L478 AbstractCegarLoop]: Abstraction has 4450 states and 6790 transitions. [2022-03-20 02:53:08,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 6790 transitions. [2022-03-20 02:53:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-03-20 02:53:08,126 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:08,126 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:08,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:53:08,126 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:08,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:08,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1577324351, now seen corresponding path program 1 times [2022-03-20 02:53:08,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:08,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459559544] [2022-03-20 02:53:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1878 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-03-20 02:53:08,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:08,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459559544] [2022-03-20 02:53:08,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459559544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:08,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:08,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:08,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241862730] [2022-03-20 02:53:08,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:08,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:08,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:08,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:08,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:08,313 INFO L87 Difference]: Start difference. First operand 4450 states and 6790 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:09,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:11,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:12,851 INFO L93 Difference]: Finished difference Result 9336 states and 14173 transitions. [2022-03-20 02:53:12,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:12,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 455 [2022-03-20 02:53:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:12,861 INFO L225 Difference]: With dead ends: 9336 [2022-03-20 02:53:12,862 INFO L226 Difference]: Without dead ends: 4914 [2022-03-20 02:53:12,865 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:12,867 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 82 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:12,867 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 647 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:53:12,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4914 states. [2022-03-20 02:53:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4914 to 4450. [2022-03-20 02:53:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 4445 states have (on average 1.523734533183352) internal successors, (6773), 4445 states have internal predecessors, (6773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 6777 transitions. [2022-03-20 02:53:12,936 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 6777 transitions. Word has length 455 [2022-03-20 02:53:12,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:12,937 INFO L478 AbstractCegarLoop]: Abstraction has 4450 states and 6777 transitions. [2022-03-20 02:53:12,937 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:12,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 6777 transitions. [2022-03-20 02:53:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-03-20 02:53:12,945 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:12,945 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:12,945 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:53:12,945 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:12,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:12,945 INFO L85 PathProgramCache]: Analyzing trace with hash 524462704, now seen corresponding path program 1 times [2022-03-20 02:53:12,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:12,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382572912] [2022-03-20 02:53:12,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:12,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:13,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1184 proven. 46 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2022-03-20 02:53:13,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:13,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382572912] [2022-03-20 02:53:13,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382572912] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:13,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15137462] [2022-03-20 02:53:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:13,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:53:13,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:53:13,161 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) [2022-03-20 02:53:13,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 02:53:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:13,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 2134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 02:53:13,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:53:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1286 proven. 0 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2022-03-20 02:53:14,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 02:53:14,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15137462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:14,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 02:53:14,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-03-20 02:53:14,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151112588] [2022-03-20 02:53:14,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:14,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 02:53:14,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:14,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 02:53:14,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:53:14,495 INFO L87 Difference]: Start difference. First operand 4450 states and 6777 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:14,581 INFO L93 Difference]: Finished difference Result 9545 states and 14555 transitions. [2022-03-20 02:53:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 02:53:14,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 456 [2022-03-20 02:53:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:14,589 INFO L225 Difference]: With dead ends: 9545 [2022-03-20 02:53:14,589 INFO L226 Difference]: Without dead ends: 5123 [2022-03-20 02:53:14,595 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-20 02:53:14,595 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 148 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:14,595 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 384 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 02:53:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2022-03-20 02:53:14,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 5123. [2022-03-20 02:53:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5118 states have (on average 1.5248143806174286) internal successors, (7804), 5118 states have internal predecessors, (7804), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 7808 transitions. [2022-03-20 02:53:14,687 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 7808 transitions. Word has length 456 [2022-03-20 02:53:14,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:14,687 INFO L478 AbstractCegarLoop]: Abstraction has 5123 states and 7808 transitions. [2022-03-20 02:53:14,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 7808 transitions. [2022-03-20 02:53:14,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-03-20 02:53:14,696 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:14,696 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:14,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-20 02:53:14,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-03-20 02:53:14,911 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1836974553, now seen corresponding path program 1 times [2022-03-20 02:53:14,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:14,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451163920] [2022-03-20 02:53:14,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:14,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1238 proven. 46 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2022-03-20 02:53:15,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:15,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451163920] [2022-03-20 02:53:15,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451163920] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:15,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370186617] [2022-03-20 02:53:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:15,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:53:15,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:53:15,153 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) [2022-03-20 02:53:15,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 02:53:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:15,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 02:53:15,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:53:16,011 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:53:16,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:53:16,055 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:53:16,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:53:16,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 02:53:16,257 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:53:16,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:53:16,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:53:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1233 proven. 126 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-03-20 02:53:16,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:53:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1254 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-03-20 02:53:17,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370186617] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:17,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:53:17,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-20 02:53:17,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576627895] [2022-03-20 02:53:17,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:17,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:53:17,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:17,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:53:17,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:53:17,080 INFO L87 Difference]: Start difference. First operand 5123 states and 7808 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:18,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:18,112 INFO L93 Difference]: Finished difference Result 11659 states and 17688 transitions. [2022-03-20 02:53:18,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:53:18,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 472 [2022-03-20 02:53:18,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:18,122 INFO L225 Difference]: With dead ends: 11659 [2022-03-20 02:53:18,122 INFO L226 Difference]: Without dead ends: 6564 [2022-03-20 02:53:18,128 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:53:18,130 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 105 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:18,130 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 584 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-20 02:53:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2022-03-20 02:53:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 5703. [2022-03-20 02:53:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5703 states, 5698 states have (on average 1.5293085293085293) internal successors, (8714), 5698 states have internal predecessors, (8714), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 8718 transitions. [2022-03-20 02:53:18,239 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 8718 transitions. Word has length 472 [2022-03-20 02:53:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:18,240 INFO L478 AbstractCegarLoop]: Abstraction has 5703 states and 8718 transitions. [2022-03-20 02:53:18,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:18,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 8718 transitions. [2022-03-20 02:53:18,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-03-20 02:53:18,250 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:18,251 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:18,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-20 02:53:18,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-03-20 02:53:18,471 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:18,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash -935256423, now seen corresponding path program 1 times [2022-03-20 02:53:18,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:18,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074365458] [2022-03-20 02:53:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1127 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-03-20 02:53:18,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:18,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074365458] [2022-03-20 02:53:18,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074365458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:18,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:18,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:18,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160400410] [2022-03-20 02:53:18,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:18,669 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:18,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:18,670 INFO L87 Difference]: Start difference. First operand 5703 states and 8718 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:20,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:21,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:23,746 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 [] [2022-03-20 02:53:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:24,292 INFO L93 Difference]: Finished difference Result 11853 states and 18042 transitions. [2022-03-20 02:53:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:24,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 472 [2022-03-20 02:53:24,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:24,300 INFO L225 Difference]: With dead ends: 11853 [2022-03-20 02:53:24,300 INFO L226 Difference]: Without dead ends: 6178 [2022-03-20 02:53:24,305 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:24,305 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 76 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:24,305 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 639 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 02:53:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2022-03-20 02:53:24,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 5703. [2022-03-20 02:53:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5703 states, 5698 states have (on average 1.5266760266760266) internal successors, (8699), 5698 states have internal predecessors, (8699), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 8703 transitions. [2022-03-20 02:53:24,385 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 8703 transitions. Word has length 472 [2022-03-20 02:53:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:24,385 INFO L478 AbstractCegarLoop]: Abstraction has 5703 states and 8703 transitions. [2022-03-20 02:53:24,386 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 8703 transitions. [2022-03-20 02:53:24,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-03-20 02:53:24,393 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:24,393 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:24,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:53:24,394 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:24,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:24,394 INFO L85 PathProgramCache]: Analyzing trace with hash -483188081, now seen corresponding path program 1 times [2022-03-20 02:53:24,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:24,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048332438] [2022-03-20 02:53:24,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:24,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:24,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 1185 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2022-03-20 02:53:24,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:24,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048332438] [2022-03-20 02:53:24,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048332438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:24,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:24,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:24,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940007490] [2022-03-20 02:53:24,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:24,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:24,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:24,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:24,567 INFO L87 Difference]: Start difference. First operand 5703 states and 8703 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:25,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:27,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:29,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:30,621 INFO L93 Difference]: Finished difference Result 11965 states and 18206 transitions. [2022-03-20 02:53:30,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:30,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-03-20 02:53:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:30,630 INFO L225 Difference]: With dead ends: 11965 [2022-03-20 02:53:30,630 INFO L226 Difference]: Without dead ends: 6290 [2022-03-20 02:53:30,637 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:30,638 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 27 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:30,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 591 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 02:53:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6290 states. [2022-03-20 02:53:30,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6290 to 6093. [2022-03-20 02:53:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6093 states, 6088 states have (on average 1.5200394218134035) internal successors, (9254), 6088 states have internal predecessors, (9254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 9258 transitions. [2022-03-20 02:53:30,776 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 9258 transitions. Word has length 474 [2022-03-20 02:53:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:30,776 INFO L478 AbstractCegarLoop]: Abstraction has 6093 states and 9258 transitions. [2022-03-20 02:53:30,776 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 9258 transitions. [2022-03-20 02:53:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-03-20 02:53:30,786 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:30,786 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:30,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:53:30,786 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:30,786 INFO L85 PathProgramCache]: Analyzing trace with hash 396948881, now seen corresponding path program 1 times [2022-03-20 02:53:30,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:30,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173802397] [2022-03-20 02:53:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:30,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2067 backedges. 1237 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-03-20 02:53:31,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:31,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173802397] [2022-03-20 02:53:31,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173802397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:31,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:31,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:31,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783062164] [2022-03-20 02:53:31,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:31,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:31,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:31,026 INFO L87 Difference]: Start difference. First operand 6093 states and 9258 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:32,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:34,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:35,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:36,236 INFO L93 Difference]: Finished difference Result 12583 states and 19111 transitions. [2022-03-20 02:53:36,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:36,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 478 [2022-03-20 02:53:36,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:36,243 INFO L225 Difference]: With dead ends: 12583 [2022-03-20 02:53:36,243 INFO L226 Difference]: Without dead ends: 6518 [2022-03-20 02:53:36,249 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:36,250 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 41 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:36,250 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 609 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 02:53:36,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2022-03-20 02:53:36,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 6333. [2022-03-20 02:53:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6333 states, 6328 states have (on average 1.5192793931731985) internal successors, (9614), 6328 states have internal predecessors, (9614), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6333 states to 6333 states and 9618 transitions. [2022-03-20 02:53:36,346 INFO L78 Accepts]: Start accepts. Automaton has 6333 states and 9618 transitions. Word has length 478 [2022-03-20 02:53:36,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:36,346 INFO L478 AbstractCegarLoop]: Abstraction has 6333 states and 9618 transitions. [2022-03-20 02:53:36,346 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 6333 states and 9618 transitions. [2022-03-20 02:53:36,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-03-20 02:53:36,356 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:36,356 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:36,356 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:53:36,356 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:36,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1495588317, now seen corresponding path program 1 times [2022-03-20 02:53:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:36,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027338041] [2022-03-20 02:53:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:36,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 1269 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-03-20 02:53:36,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:36,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027338041] [2022-03-20 02:53:36,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027338041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:36,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:36,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:36,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559148030] [2022-03-20 02:53:36,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:36,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:36,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:36,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:36,582 INFO L87 Difference]: Start difference. First operand 6333 states and 9618 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:39,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:41,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:41,928 INFO L93 Difference]: Finished difference Result 13510 states and 20501 transitions. [2022-03-20 02:53:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 482 [2022-03-20 02:53:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:41,936 INFO L225 Difference]: With dead ends: 13510 [2022-03-20 02:53:41,936 INFO L226 Difference]: Without dead ends: 7205 [2022-03-20 02:53:41,942 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:41,943 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 44 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:41,943 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 611 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 517 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 02:53:41,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7205 states. [2022-03-20 02:53:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7205 to 6813. [2022-03-20 02:53:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6813 states, 6808 states have (on average 1.520123384253819) internal successors, (10349), 6808 states have internal predecessors, (10349), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6813 states to 6813 states and 10353 transitions. [2022-03-20 02:53:42,082 INFO L78 Accepts]: Start accepts. Automaton has 6813 states and 10353 transitions. Word has length 482 [2022-03-20 02:53:42,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:42,082 INFO L478 AbstractCegarLoop]: Abstraction has 6813 states and 10353 transitions. [2022-03-20 02:53:42,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 6813 states and 10353 transitions. [2022-03-20 02:53:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-20 02:53:42,091 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:42,091 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:42,091 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:53:42,091 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:42,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:42,092 INFO L85 PathProgramCache]: Analyzing trace with hash 271747641, now seen corresponding path program 1 times [2022-03-20 02:53:42,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:42,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395901832] [2022-03-20 02:53:42,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:42,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:42,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1234 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-03-20 02:53:42,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:42,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395901832] [2022-03-20 02:53:42,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395901832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:42,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:42,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:42,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940286106] [2022-03-20 02:53:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:42,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:42,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:42,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:42,246 INFO L87 Difference]: Start difference. First operand 6813 states and 10353 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:45,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:46,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:46,594 INFO L93 Difference]: Finished difference Result 14028 states and 21252 transitions. [2022-03-20 02:53:46,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:46,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-03-20 02:53:46,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:46,602 INFO L225 Difference]: With dead ends: 14028 [2022-03-20 02:53:46,602 INFO L226 Difference]: Without dead ends: 7243 [2022-03-20 02:53:46,611 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:46,611 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 65 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:46,612 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 635 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 02:53:46,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-03-20 02:53:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 6813. [2022-03-20 02:53:46,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6813 states, 6808 states have (on average 1.5179200940070505) internal successors, (10334), 6808 states have internal predecessors, (10334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6813 states to 6813 states and 10338 transitions. [2022-03-20 02:53:46,728 INFO L78 Accepts]: Start accepts. Automaton has 6813 states and 10338 transitions. Word has length 484 [2022-03-20 02:53:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:46,728 INFO L478 AbstractCegarLoop]: Abstraction has 6813 states and 10338 transitions. [2022-03-20 02:53:46,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 6813 states and 10338 transitions. [2022-03-20 02:53:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-20 02:53:46,736 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:46,736 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:46,736 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 02:53:46,736 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:46,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash 52555033, now seen corresponding path program 1 times [2022-03-20 02:53:46,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:46,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403879777] [2022-03-20 02:53:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 1210 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2022-03-20 02:53:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:46,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403879777] [2022-03-20 02:53:46,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403879777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:46,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:46,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:46,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625350737] [2022-03-20 02:53:46,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:46,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:46,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:46,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:46,930 INFO L87 Difference]: Start difference. First operand 6813 states and 10338 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:49,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:50,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:50,953 INFO L93 Difference]: Finished difference Result 14335 states and 21731 transitions. [2022-03-20 02:53:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:50,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-03-20 02:53:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:50,961 INFO L225 Difference]: With dead ends: 14335 [2022-03-20 02:53:50,961 INFO L226 Difference]: Without dead ends: 7550 [2022-03-20 02:53:50,967 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:50,967 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 38 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:50,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 603 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 02:53:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7550 states. [2022-03-20 02:53:51,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7550 to 7233. [2022-03-20 02:53:51,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7233 states, 7228 states have (on average 1.514803541781959) internal successors, (10949), 7228 states have internal predecessors, (10949), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 10953 transitions. [2022-03-20 02:53:51,080 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 10953 transitions. Word has length 484 [2022-03-20 02:53:51,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:51,081 INFO L478 AbstractCegarLoop]: Abstraction has 7233 states and 10953 transitions. [2022-03-20 02:53:51,081 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:51,081 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 10953 transitions. [2022-03-20 02:53:51,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-20 02:53:51,118 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:51,118 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:51,118 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 02:53:51,118 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:51,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:51,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1050995749, now seen corresponding path program 1 times [2022-03-20 02:53:51,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:51,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751219770] [2022-03-20 02:53:51,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:54,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 32 proven. 2067 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-03-20 02:53:54,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:54,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751219770] [2022-03-20 02:53:54,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751219770] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:54,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829210402] [2022-03-20 02:53:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:54,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:53:54,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:53:54,449 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) [2022-03-20 02:53:54,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 02:53:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:55,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-20 02:53:55,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:53:55,458 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:53:55,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:53:55,566 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 02:53:55,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 02:53:55,654 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 9 treesize of output 3 [2022-03-20 02:53:55,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 02:53:55,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 02:53:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:55,940 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 45 treesize of output 44 [2022-03-20 02:53:55,969 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 02:53:55,970 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 41 treesize of output 60 [2022-03-20 02:53:55,978 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:53:55,978 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 85 treesize of output 72 [2022-03-20 02:53:56,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:56,540 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 64 treesize of output 57 [2022-03-20 02:53:56,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:56,544 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 64 treesize of output 57 [2022-03-20 02:53:56,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:56,560 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 02:53:56,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 02:53:56,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:56,655 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 02:53:56,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 02:53:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:56,659 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 80 treesize of output 67 [2022-03-20 02:53:56,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:56,663 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 80 treesize of output 67 [2022-03-20 02:53:57,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:57,261 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 02:53:57,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 02:53:57,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:53:57,295 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 02:53:57,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 02:53:57,336 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 02:53:57,336 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 40 treesize of output 73 [2022-03-20 02:54:04,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 180 [2022-03-20 02:54:04,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 180 [2022-03-20 02:54:04,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:04,083 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-03-20 02:54:04,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 208 [2022-03-20 02:54:08,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 261 [2022-03-20 02:54:08,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 279 [2022-03-20 02:54:08,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,606 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 02:54:08,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 343 treesize of output 337 [2022-03-20 02:54:08,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,873 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 196 treesize of output 136 [2022-03-20 02:54:08,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:54:08,887 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 136 treesize of output 82 [2022-03-20 02:54:08,912 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-20 02:54:08,912 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 101 treesize of output 102 [2022-03-20 02:54:08,980 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 02:54:08,981 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 33 treesize of output 35 [2022-03-20 02:54:09,114 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:54:09,115 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 29 treesize of output 11 [2022-03-20 02:54:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 991 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-03-20 02:54:09,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:54:11,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 02:54:11,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 02:54:11,910 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 262 treesize of output 202 [2022-03-20 02:54:11,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 02:54:11,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 02:54:11,914 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 214 treesize of output 154 [2022-03-20 02:54:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1133 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-03-20 02:54:15,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829210402] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 02:54:15,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 02:54:15,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 20, 13] total 57 [2022-03-20 02:54:15,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254461246] [2022-03-20 02:54:15,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 02:54:15,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-03-20 02:54:15,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:15,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-03-20 02:54:15,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2867, Unknown=0, NotChecked=0, Total=3192 [2022-03-20 02:54:15,169 INFO L87 Difference]: Start difference. First operand 7233 states and 10953 transitions. Second operand has 57 states, 56 states have (on average 14.303571428571429) internal successors, (801), 55 states have internal predecessors, (801), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:18,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:20,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:24,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:28,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:30,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:33,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:34,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:58,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:58,246 INFO L93 Difference]: Finished difference Result 40347 states and 60539 transitions. [2022-03-20 02:54:58,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-03-20 02:54:58,246 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 14.303571428571429) internal successors, (801), 55 states have internal predecessors, (801), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-03-20 02:54:58,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:58,294 INFO L225 Difference]: With dead ends: 40347 [2022-03-20 02:54:58,294 INFO L226 Difference]: Without dead ends: 33121 [2022-03-20 02:54:58,320 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1013 SyntacticMatches, 21 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8649 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1998, Invalid=21872, Unknown=0, NotChecked=0, Total=23870 [2022-03-20 02:54:58,320 INFO L913 BasicCegarLoop]: 597 mSDtfsCounter, 2824 mSDsluCounter, 13806 mSDsCounter, 0 mSdLazyCounter, 13680 mSolverCounterSat, 437 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 14403 SdHoareTripleChecker+Invalid, 17786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 13680 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 3668 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:58,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2824 Valid, 14403 Invalid, 17786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 13680 Invalid, 1 Unknown, 3668 Unchecked, 32.7s Time] [2022-03-20 02:54:58,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33121 states. [2022-03-20 02:54:58,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33121 to 15284. [2022-03-20 02:54:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15284 states, 15279 states have (on average 1.524052621244846) internal successors, (23286), 15279 states have internal predecessors, (23286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15284 states to 15284 states and 23290 transitions. [2022-03-20 02:54:58,838 INFO L78 Accepts]: Start accepts. Automaton has 15284 states and 23290 transitions. Word has length 484 [2022-03-20 02:54:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:58,839 INFO L478 AbstractCegarLoop]: Abstraction has 15284 states and 23290 transitions. [2022-03-20 02:54:58,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 14.303571428571429) internal successors, (801), 55 states have internal predecessors, (801), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 15284 states and 23290 transitions. [2022-03-20 02:54:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-03-20 02:54:58,887 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:58,887 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:58,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 02:54:59,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:54:59,091 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:59,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:59,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1217231148, now seen corresponding path program 1 times [2022-03-20 02:54:59,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:59,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253933960] [2022-03-20 02:54:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:59,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:59,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-03-20 02:54:59,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:59,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253933960] [2022-03-20 02:54:59,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253933960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:59,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:59,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:54:59,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062525196] [2022-03-20 02:54:59,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:59,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:54:59,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:54:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:54:59,319 INFO L87 Difference]: Start difference. First operand 15284 states and 23290 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:00,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:02,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:04,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:05,129 INFO L93 Difference]: Finished difference Result 38103 states and 57999 transitions. [2022-03-20 02:55:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:55:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 485 [2022-03-20 02:55:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:05,158 INFO L225 Difference]: With dead ends: 38103 [2022-03-20 02:55:05,159 INFO L226 Difference]: Without dead ends: 22847 [2022-03-20 02:55:05,174 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:55:05,175 INFO L913 BasicCegarLoop]: 373 mSDtfsCounter, 136 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:05,175 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 585 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 02:55:05,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22847 states. [2022-03-20 02:55:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22847 to 22831. [2022-03-20 02:55:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22831 states, 22826 states have (on average 1.5198019801980198) internal successors, (34691), 22826 states have internal predecessors, (34691), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:05,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22831 states to 22831 states and 34695 transitions. [2022-03-20 02:55:05,822 INFO L78 Accepts]: Start accepts. Automaton has 22831 states and 34695 transitions. Word has length 485 [2022-03-20 02:55:05,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:05,823 INFO L478 AbstractCegarLoop]: Abstraction has 22831 states and 34695 transitions. [2022-03-20 02:55:05,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 22831 states and 34695 transitions. [2022-03-20 02:55:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-03-20 02:55:05,846 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:05,846 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:55:05,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 02:55:05,846 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:05,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 774453811, now seen corresponding path program 1 times [2022-03-20 02:55:05,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:05,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006760521] [2022-03-20 02:55:05,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:05,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:06,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 1052 proven. 261 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2022-03-20 02:55:06,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:06,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006760521] [2022-03-20 02:55:06,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006760521] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:55:06,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311278342] [2022-03-20 02:55:06,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:06,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:55:06,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:55:06,749 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:55:06,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 02:55:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:07,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 2245 conjuncts, 145 conjunts are in the unsatisfiable core [2022-03-20 02:55:07,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:55:07,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:07,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:55:08,027 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 [2022-03-20 02:55:08,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,032 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:08,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 02:55:08,074 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 [2022-03-20 02:55:08,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,079 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:08,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-03-20 02:55:08,247 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 02:55:08,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-20 02:55:08,262 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-20 02:55:08,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-20 02:55:08,278 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-20 02:55:08,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2022-03-20 02:55:08,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-20 02:55:08,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-20 02:55:08,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-03-20 02:55:08,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-20 02:55:08,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-20 02:55:08,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-03-20 02:55:08,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,832 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 02:55:08,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-03-20 02:55:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,863 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 02:55:08,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-03-20 02:55:08,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:08,894 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-20 02:55:08,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-03-20 02:55:09,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-03-20 02:55:09,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 185 [2022-03-20 02:55:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:09,078 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-20 02:55:09,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 213 treesize of output 231 [2022-03-20 02:55:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 226 [2022-03-20 02:55:11,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,236 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-03-20 02:55:11,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 262 treesize of output 260 [2022-03-20 02:55:11,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:11,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 242 [2022-03-20 02:55:13,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:13,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:13,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:13,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:13,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:13,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:13,664 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-03-20 02:55:13,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 271 treesize of output 259 [2022-03-20 02:55:14,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-03-20 02:55:14,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,162 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:14,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-03-20 02:55:14,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-03-20 02:55:14,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:14,198 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:14,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-03-20 02:55:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,214 INFO L356 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2022-03-20 02:55:15,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 144 [2022-03-20 02:55:15,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,231 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-03-20 02:55:15,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-03-20 02:55:15,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 113 [2022-03-20 02:55:15,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:15,368 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:15,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 125 [2022-03-20 02:55:16,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-03-20 02:55:16,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,597 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:16,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-03-20 02:55:16,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,664 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-03-20 02:55:16,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 179 [2022-03-20 02:55:16,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-03-20 02:55:16,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,696 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-03-20 02:55:16,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 157 [2022-03-20 02:55:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 165 [2022-03-20 02:55:16,869 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-20 02:55:16,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 02:55:16,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:16,878 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:16,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 153 [2022-03-20 02:55:18,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:18,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:18,240 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:18,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 224 treesize of output 190 [2022-03-20 02:55:18,254 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-20 02:55:18,254 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 53 treesize of output 34 [2022-03-20 02:55:18,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:18,257 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 186 treesize of output 132 [2022-03-20 02:55:22,685 INFO L356 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-03-20 02:55:22,685 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 40 treesize of output 10 [2022-03-20 02:55:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 1125 proven. 874 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:55:22,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:55:23,252 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 1212 treesize of output 1064