/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 13:56:59,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 13:56:59,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 13:56:59,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 13:56:59,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 13:56:59,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 13:56:59,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 13:56:59,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 13:56:59,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 13:56:59,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 13:56:59,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 13:56:59,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 13:56:59,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 13:56:59,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 13:56:59,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 13:56:59,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 13:56:59,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 13:56:59,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 13:56:59,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 13:56:59,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 13:56:59,238 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 13:56:59,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 13:56:59,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 13:56:59,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 13:56:59,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 13:56:59,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 13:56:59,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 13:56:59,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 13:56:59,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 13:56:59,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 13:56:59,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-06 13:56:59,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 13:56:59,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 13:56:59,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 13:56:59,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-06 13:56:59,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 13:56:59,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 13:56:59,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-06 13:56:59,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-06 13:56:59,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-06 13:56:59,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-06 13:56:59,278 INFO L138 SettingsManager]: * Use SBE=true [2022-04-06 13:56:59,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 13:56:59,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 13:56:59,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 13:56:59,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 13:56:59,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 13:56:59,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:56:59,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 13:56:59,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-06 13:56:59,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-06 13:56:59,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 13:56:59,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-06 13:56:59,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 13:56:59,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-06 13:56:59,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-06 13:56:59,282 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 13:56:59,282 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 13:56:59,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 13:56:59,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 13:56:59,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 13:56:59,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 13:56:59,495 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 13:56:59,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-04-06 13:56:59,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/408de1268/5c0d8539f2674081964548373eb21e12/FLAGad86590b6 [2022-04-06 13:57:00,020 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 13:57:00,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-04-06 13:57:00,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/408de1268/5c0d8539f2674081964548373eb21e12/FLAGad86590b6 [2022-04-06 13:57:00,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/408de1268/5c0d8539f2674081964548373eb21e12 [2022-04-06 13:57:00,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 13:57:00,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 13:57:00,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 13:57:00,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 13:57:00,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 13:57:00,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:57:00" (1/1) ... [2022-04-06 13:57:00,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a37e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:00, skipping insertion in model container [2022-04-06 13:57:00,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:57:00" (1/1) ... [2022-04-06 13:57:00,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 13:57:00,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 13:57:00,854 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.11.i.cil-2.c[74369,74382] [2022-04-06 13:57:00,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:57:00,868 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 13:57:00,988 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.11.i.cil-2.c[74369,74382] [2022-04-06 13:57:00,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:57:01,007 INFO L208 MainTranslator]: Completed translation [2022-04-06 13:57:01,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01 WrapperNode [2022-04-06 13:57:01,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 13:57:01,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 13:57:01,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 13:57:01,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 13:57:01,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 13:57:01,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 13:57:01,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 13:57:01,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 13:57:01,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (1/1) ... [2022-04-06 13:57:01,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:57:01,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:57:01,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 13:57:01,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 13:57:01,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 13:57:01,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 13:57:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 13:57:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 13:57:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 13:57:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 13:57:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 13:57:01,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 13:57:01,242 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 13:57:01,242 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 13:57:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 13:57:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 13:57:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 13:57:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 13:57:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 13:57:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 13:57:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 13:57:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 13:57:01,414 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 13:57:01,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 13:57:02,371 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 13:57:02,784 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 13:57:02,784 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 13:57:02,792 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 13:57:02,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 13:57:02,800 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 13:57:02,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:57:02 BoogieIcfgContainer [2022-04-06 13:57:02,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 13:57:02,802 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 13:57:02,802 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 13:57:02,803 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 13:57:02,805 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:57:02" (1/1) ... [2022-04-06 13:57:02,807 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-06 13:57:02,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:57:02 BasicIcfg [2022-04-06 13:57:02,849 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 13:57:02,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 13:57:02,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 13:57:02,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 13:57:02,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 01:57:00" (1/4) ... [2022-04-06 13:57:02,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5866c524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:57:02, skipping insertion in model container [2022-04-06 13:57:02,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:57:01" (2/4) ... [2022-04-06 13:57:02,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5866c524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:57:02, skipping insertion in model container [2022-04-06 13:57:02,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:57:02" (3/4) ... [2022-04-06 13:57:02,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5866c524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 01:57:02, skipping insertion in model container [2022-04-06 13:57:02,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:57:02" (4/4) ... [2022-04-06 13:57:02,856 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-2.cqvasr [2022-04-06 13:57:02,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-06 13:57:02,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 13:57:02,904 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 13:57:02,914 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 13:57:02,914 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 13:57:02,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 13:57:02,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-06 13:57:02,942 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:02,942 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] [2022-04-06 13:57:02,942 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:02,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:02,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-04-06 13:57:02,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:02,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437669488] [2022-04-06 13:57:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:02,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:03,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:03,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:57:03,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:03,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437669488] [2022-04-06 13:57:03,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437669488] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:03,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:03,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:03,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065910977] [2022-04-06 13:57:03,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:03,379 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:03,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:03,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:03,398 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:06,122 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-04-06 13:57:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:06,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 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 42 [2022-04-06 13:57:06,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:06,134 INFO L225 Difference]: With dead ends: 430 [2022-04-06 13:57:06,134 INFO L226 Difference]: Without dead ends: 261 [2022-04-06 13:57:06,139 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:06,142 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:06,142 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-06 13:57:06,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-04-06 13:57:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-04-06 13:57:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-04-06 13:57:06,188 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-04-06 13:57:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:06,188 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-04-06 13:57:06,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-04-06 13:57:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-04-06 13:57:06,190 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:06,190 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] [2022-04-06 13:57:06,190 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 13:57:06,190 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:06,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1744879992, now seen corresponding path program 1 times [2022-04-06 13:57:06,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:06,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679245368] [2022-04-06 13:57:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:57:06,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679245368] [2022-04-06 13:57:06,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679245368] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:06,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:06,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:06,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614449224] [2022-04-06 13:57:06,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:06,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:06,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:06,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:06,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:06,386 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:08,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:08,868 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-04-06 13:57:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 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 43 [2022-04-06 13:57:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:08,870 INFO L225 Difference]: With dead ends: 444 [2022-04-06 13:57:08,870 INFO L226 Difference]: Without dead ends: 289 [2022-04-06 13:57:08,871 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:08,872 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:08,872 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:57:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-04-06 13:57:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-04-06 13:57:08,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:08,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-04-06 13:57:08,887 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-04-06 13:57:08,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:08,887 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-04-06 13:57:08,887 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:08,887 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-04-06 13:57:08,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-06 13:57:08,893 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:08,893 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] [2022-04-06 13:57:08,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 13:57:08,894 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:08,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1748954430, now seen corresponding path program 1 times [2022-04-06 13:57:08,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:08,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95966898] [2022-04-06 13:57:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:57:09,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:09,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95966898] [2022-04-06 13:57:09,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95966898] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:09,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:09,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:09,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188553871] [2022-04-06 13:57:09,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:09,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:09,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:09,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:09,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:09,065 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:11,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:11,624 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-04-06 13:57:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:11,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 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 49 [2022-04-06 13:57:11,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:11,626 INFO L225 Difference]: With dead ends: 503 [2022-04-06 13:57:11,626 INFO L226 Difference]: Without dead ends: 319 [2022-04-06 13:57:11,627 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:11,628 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:11,628 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:57:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-04-06 13:57:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-04-06 13:57:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:11,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-04-06 13:57:11,637 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 49 [2022-04-06 13:57:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:11,638 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-04-06 13:57:11,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-04-06 13:57:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-06 13:57:11,639 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:11,639 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] [2022-04-06 13:57:11,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 13:57:11,639 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:11,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:11,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1646418066, now seen corresponding path program 1 times [2022-04-06 13:57:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:11,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074591730] [2022-04-06 13:57:11,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:11,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:57:11,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:11,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074591730] [2022-04-06 13:57:11,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074591730] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:11,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:11,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:11,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965323972] [2022-04-06 13:57:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:11,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:11,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:11,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:11,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:11,737 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. 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) [2022-04-06 13:57:14,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:15,867 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-04-06 13:57:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:15,868 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 [2022-04-06 13:57:15,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:15,869 INFO L225 Difference]: With dead ends: 553 [2022-04-06 13:57:15,869 INFO L226 Difference]: Without dead ends: 329 [2022-04-06 13:57:15,870 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:15,871 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:15,871 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 364 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 13:57:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-04-06 13:57:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-04-06 13:57:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:15,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-04-06 13:57:15,878 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 50 [2022-04-06 13:57:15,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:15,879 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-04-06 13:57:15,879 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) [2022-04-06 13:57:15,879 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-04-06 13:57:15,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-06 13:57:15,880 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:15,880 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:15,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 13:57:15,880 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:15,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1803301705, now seen corresponding path program 1 times [2022-04-06 13:57:15,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:15,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410345403] [2022-04-06 13:57:15,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:15,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-04-06 13:57:15,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:15,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410345403] [2022-04-06 13:57:15,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410345403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:15,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:15,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:15,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469735413] [2022-04-06 13:57:15,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:15,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:15,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:15,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:15,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:15,973 INFO L87 Difference]: Start difference. First operand 250 states and 409 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) [2022-04-06 13:57:17,040 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 [] [2022-04-06 13:57:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:18,549 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-04-06 13:57:18,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:18,549 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 70 [2022-04-06 13:57:18,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:18,550 INFO L225 Difference]: With dead ends: 513 [2022-04-06 13:57:18,550 INFO L226 Difference]: Without dead ends: 278 [2022-04-06 13:57:18,551 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:18,551 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:18,552 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 13:57:18,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-04-06 13:57:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-04-06 13:57:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:18,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-04-06 13:57:18,558 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-04-06 13:57:18,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:18,558 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-04-06 13:57:18,558 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) [2022-04-06 13:57:18,558 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-04-06 13:57:18,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 13:57:18,559 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:18,559 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:18,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 13:57:18,563 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:18,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:18,563 INFO L85 PathProgramCache]: Analyzing trace with hash 63867932, now seen corresponding path program 1 times [2022-04-06 13:57:18,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:18,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485252914] [2022-04-06 13:57:18,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:18,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:18,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:18,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485252914] [2022-04-06 13:57:18,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485252914] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:18,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:18,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:18,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718049121] [2022-04-06 13:57:18,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:18,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:18,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:18,699 INFO L87 Difference]: Start difference. First operand 261 states and 428 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) [2022-04-06 13:57:21,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:22,144 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-04-06 13:57:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:22,145 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 83 [2022-04-06 13:57:22,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:22,146 INFO L225 Difference]: With dead ends: 513 [2022-04-06 13:57:22,146 INFO L226 Difference]: Without dead ends: 278 [2022-04-06 13:57:22,147 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:22,147 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:22,148 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 13:57:22,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-04-06 13:57:22,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-04-06 13:57:22,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:22,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-04-06 13:57:22,153 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-04-06 13:57:22,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:22,153 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-04-06 13:57:22,154 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) [2022-04-06 13:57:22,154 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-04-06 13:57:22,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-06 13:57:22,154 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:22,154 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2022-04-06 13:57:22,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 13:57:22,155 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:22,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:22,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1024321373, now seen corresponding path program 1 times [2022-04-06 13:57:22,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:22,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407605191] [2022-04-06 13:57:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:22,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:22,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:22,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407605191] [2022-04-06 13:57:22,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407605191] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:22,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:22,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:22,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722954064] [2022-04-06 13:57:22,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:22,277 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:22,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:22,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:22,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:22,277 INFO L87 Difference]: Start difference. First operand 261 states and 427 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) [2022-04-06 13:57:24,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:26,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:28,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:28,900 INFO L93 Difference]: Finished difference Result 574 states and 927 transitions. [2022-04-06 13:57:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:28,900 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 84 [2022-04-06 13:57:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:28,902 INFO L225 Difference]: With dead ends: 574 [2022-04-06 13:57:28,902 INFO L226 Difference]: Without dead ends: 339 [2022-04-06 13:57:28,902 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:28,903 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 150 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:28,903 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 366 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 13:57:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-04-06 13:57:28,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-04-06 13:57:28,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-04-06 13:57:28,909 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-04-06 13:57:28,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:28,909 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-04-06 13:57:28,909 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) [2022-04-06 13:57:28,909 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-04-06 13:57:28,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-06 13:57:28,910 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:28,910 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:28,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 13:57:28,910 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:28,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 992055491, now seen corresponding path program 1 times [2022-04-06 13:57:28,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:28,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853262643] [2022-04-06 13:57:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:28,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:29,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:29,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:29,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853262643] [2022-04-06 13:57:29,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853262643] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:29,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:29,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:29,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085515181] [2022-04-06 13:57:29,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:29,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:29,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:29,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:29,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:29,015 INFO L87 Difference]: Start difference. First operand 261 states and 423 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) [2022-04-06 13:57:31,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:33,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:34,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:34,161 INFO L93 Difference]: Finished difference Result 512 states and 830 transitions. [2022-04-06 13:57:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:34,161 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 84 [2022-04-06 13:57:34,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:34,162 INFO L225 Difference]: With dead ends: 512 [2022-04-06 13:57:34,162 INFO L226 Difference]: Without dead ends: 277 [2022-04-06 13:57:34,163 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:34,164 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:34,164 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 13:57:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-04-06 13:57:34,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 261. [2022-04-06 13:57:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6328125) internal successors, (418), 256 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 422 transitions. [2022-04-06 13:57:34,169 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 422 transitions. Word has length 84 [2022-04-06 13:57:34,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:34,169 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 422 transitions. [2022-04-06 13:57:34,169 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) [2022-04-06 13:57:34,169 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 422 transitions. [2022-04-06 13:57:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-06 13:57:34,170 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:34,170 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-06 13:57:34,170 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 13:57:34,170 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:34,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1577446659, now seen corresponding path program 1 times [2022-04-06 13:57:34,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:34,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763631356] [2022-04-06 13:57:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:34,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:34,266 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:34,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:34,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763631356] [2022-04-06 13:57:34,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763631356] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:34,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:34,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:34,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091593359] [2022-04-06 13:57:34,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:34,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:34,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:34,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:34,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:34,268 INFO L87 Difference]: Start difference. First operand 261 states and 422 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) [2022-04-06 13:57:36,157 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 [] [2022-04-06 13:57:38,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:40,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:40,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:40,569 INFO L93 Difference]: Finished difference Result 574 states and 919 transitions. [2022-04-06 13:57:40,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:40,569 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 84 [2022-04-06 13:57:40,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:40,570 INFO L225 Difference]: With dead ends: 574 [2022-04-06 13:57:40,570 INFO L226 Difference]: Without dead ends: 339 [2022-04-06 13:57:40,571 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:40,571 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 143 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:40,571 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 366 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 13:57:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-04-06 13:57:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-04-06 13:57:40,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:40,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-04-06 13:57:40,577 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-04-06 13:57:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:40,577 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-04-06 13:57:40,577 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) [2022-04-06 13:57:40,577 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-04-06 13:57:40,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-06 13:57:40,578 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:40,578 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-06 13:57:40,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 13:57:40,578 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:40,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1333437405, now seen corresponding path program 1 times [2022-04-06 13:57:40,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:40,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625218125] [2022-04-06 13:57:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:40,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:40,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:40,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:40,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625218125] [2022-04-06 13:57:40,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625218125] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:40,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:40,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:40,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268003548] [2022-04-06 13:57:40,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:40,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:40,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:40,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:40,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:40,684 INFO L87 Difference]: Start difference. First operand 261 states and 418 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) [2022-04-06 13:57:41,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:43,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:45,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:46,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:47,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:47,278 INFO L93 Difference]: Finished difference Result 573 states and 911 transitions. [2022-04-06 13:57:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:47,279 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 84 [2022-04-06 13:57:47,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:47,280 INFO L225 Difference]: With dead ends: 573 [2022-04-06 13:57:47,280 INFO L226 Difference]: Without dead ends: 338 [2022-04-06 13:57:47,281 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:47,281 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 141 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:47,281 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 13:57:47,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-06 13:57:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-04-06 13:57:47,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:47,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-04-06 13:57:47,287 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-04-06 13:57:47,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:47,287 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-04-06 13:57:47,287 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) [2022-04-06 13:57:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-04-06 13:57:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-06 13:57:47,289 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:47,289 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-06 13:57:47,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 13:57:47,290 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash -628613252, now seen corresponding path program 1 times [2022-04-06 13:57:47,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:47,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479947535] [2022-04-06 13:57:47,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:47,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:47,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:47,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479947535] [2022-04-06 13:57:47,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479947535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:47,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:47,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:47,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831123434] [2022-04-06 13:57:47,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:47,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:47,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:47,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:47,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:47,403 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:50,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:50,832 INFO L93 Difference]: Finished difference Result 573 states and 904 transitions. [2022-04-06 13:57:50,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:50,833 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 85 [2022-04-06 13:57:50,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:50,834 INFO L225 Difference]: With dead ends: 573 [2022-04-06 13:57:50,834 INFO L226 Difference]: Without dead ends: 338 [2022-04-06 13:57:50,834 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:50,835 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 145 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:50,835 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 13:57:50,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-06 13:57:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-04-06 13:57:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5859375) internal successors, (406), 256 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:50,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 410 transitions. [2022-04-06 13:57:50,843 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 410 transitions. Word has length 85 [2022-04-06 13:57:50,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:50,844 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 410 transitions. [2022-04-06 13:57:50,844 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:50,844 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 410 transitions. [2022-04-06 13:57:50,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-06 13:57:50,844 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:50,844 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2022-04-06 13:57:50,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 13:57:50,845 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:50,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:50,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1762044185, now seen corresponding path program 1 times [2022-04-06 13:57:50,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:50,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044807774] [2022-04-06 13:57:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:50,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:51,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:51,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044807774] [2022-04-06 13:57:51,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044807774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:51,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:51,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:51,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794359101] [2022-04-06 13:57:51,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:51,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:51,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:51,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:51,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:51,012 INFO L87 Difference]: Start difference. First operand 261 states and 410 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:52,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:54,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:56,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:57:57,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:57:57,318 INFO L93 Difference]: Finished difference Result 573 states and 897 transitions. [2022-04-06 13:57:57,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:57:57,318 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 86 [2022-04-06 13:57:57,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:57:57,320 INFO L225 Difference]: With dead ends: 573 [2022-04-06 13:57:57,320 INFO L226 Difference]: Without dead ends: 338 [2022-04-06 13:57:57,320 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:57:57,321 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 143 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:57:57,321 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 13:57:57,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-06 13:57:57,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-04-06 13:57:57,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:57,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 406 transitions. [2022-04-06 13:57:57,326 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 406 transitions. Word has length 86 [2022-04-06 13:57:57,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:57:57,326 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 406 transitions. [2022-04-06 13:57:57,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:57:57,327 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 406 transitions. [2022-04-06 13:57:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-06 13:57:57,329 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:57:57,329 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:57:57,329 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 13:57:57,329 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:57:57,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:57:57,329 INFO L85 PathProgramCache]: Analyzing trace with hash -67928033, now seen corresponding path program 1 times [2022-04-06 13:57:57,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:57:57,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301395002] [2022-04-06 13:57:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:57:57,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:57:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:57,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:57:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:57:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:57:57,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:57:57,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301395002] [2022-04-06 13:57:57,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301395002] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:57:57,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:57:57,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:57:57,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240941619] [2022-04-06 13:57:57,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:57:57,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:57:57,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:57:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:57:57,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:57:57,432 INFO L87 Difference]: Start difference. First operand 261 states and 406 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:00,031 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 [] [2022-04-06 13:58:02,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:04,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:04,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:04,392 INFO L93 Difference]: Finished difference Result 499 states and 785 transitions. [2022-04-06 13:58:04,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:04,393 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 87 [2022-04-06 13:58:04,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:04,394 INFO L225 Difference]: With dead ends: 499 [2022-04-06 13:58:04,394 INFO L226 Difference]: Without dead ends: 264 [2022-04-06 13:58:04,394 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:04,395 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:04,395 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 13:58:04,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-04-06 13:58:04,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-04-06 13:58:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 405 transitions. [2022-04-06 13:58:04,399 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 405 transitions. Word has length 87 [2022-04-06 13:58:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:04,400 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 405 transitions. [2022-04-06 13:58:04,400 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:04,400 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2022-04-06 13:58:04,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-06 13:58:04,400 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:04,400 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:04,400 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 13:58:04,401 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:04,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:04,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1151267150, now seen corresponding path program 1 times [2022-04-06 13:58:04,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:04,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300370891] [2022-04-06 13:58:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:04,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-06 13:58:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:04,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300370891] [2022-04-06 13:58:04,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300370891] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:04,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:04,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:04,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488279865] [2022-04-06 13:58:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:04,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:04,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:04,484 INFO L87 Difference]: Start difference. First operand 261 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:06,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:08,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:10,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:11,055 INFO L93 Difference]: Finished difference Result 537 states and 839 transitions. [2022-04-06 13:58:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:11,056 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 87 [2022-04-06 13:58:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:11,057 INFO L225 Difference]: With dead ends: 537 [2022-04-06 13:58:11,057 INFO L226 Difference]: Without dead ends: 302 [2022-04-06 13:58:11,058 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:11,058 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:11,058 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 13:58:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-04-06 13:58:11,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-04-06 13:58:11,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-04-06 13:58:11,063 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 87 [2022-04-06 13:58:11,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:11,063 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-04-06 13:58:11,063 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:11,064 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-04-06 13:58:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-04-06 13:58:11,064 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:11,064 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:11,064 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 13:58:11,065 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:11,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:11,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1763344841, now seen corresponding path program 1 times [2022-04-06 13:58:11,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:11,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107066563] [2022-04-06 13:58:11,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:11,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:58:11,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:11,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107066563] [2022-04-06 13:58:11,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107066563] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:11,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:11,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:11,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150799814] [2022-04-06 13:58:11,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:11,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:11,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:11,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:11,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:11,149 INFO L87 Difference]: Start difference. First operand 283 states and 438 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) [2022-04-06 13:58:12,564 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 [] [2022-04-06 13:58:14,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:16,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:17,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:17,573 INFO L93 Difference]: Finished difference Result 557 states and 869 transitions. [2022-04-06 13:58:17,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:17,574 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 100 [2022-04-06 13:58:17,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:17,575 INFO L225 Difference]: With dead ends: 557 [2022-04-06 13:58:17,575 INFO L226 Difference]: Without dead ends: 300 [2022-04-06 13:58:17,575 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:17,576 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 34 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:17,576 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 387 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 13:58:17,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-04-06 13:58:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-04-06 13:58:17,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-04-06 13:58:17,582 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 100 [2022-04-06 13:58:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:17,583 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-04-06 13:58:17,583 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) [2022-04-06 13:58:17,583 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-04-06 13:58:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-04-06 13:58:17,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:17,584 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-04-06 13:58:17,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 13:58:17,584 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 183034376, now seen corresponding path program 1 times [2022-04-06 13:58:17,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:17,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074883074] [2022-04-06 13:58:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:17,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-04-06 13:58:17,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:17,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074883074] [2022-04-06 13:58:17,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074883074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:17,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:17,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:17,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623582022] [2022-04-06 13:58:17,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:17,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:17,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:17,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:17,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:17,686 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:20,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:21,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:21,886 INFO L93 Difference]: Finished difference Result 568 states and 883 transitions. [2022-04-06 13:58:21,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:21,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-04-06 13:58:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:21,887 INFO L225 Difference]: With dead ends: 568 [2022-04-06 13:58:21,887 INFO L226 Difference]: Without dead ends: 311 [2022-04-06 13:58:21,888 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:21,888 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:21,888 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 13:58:21,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-04-06 13:58:21,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-04-06 13:58:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 294 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:21,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2022-04-06 13:58:21,893 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 101 [2022-04-06 13:58:21,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:21,893 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2022-04-06 13:58:21,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2022-04-06 13:58:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-04-06 13:58:21,894 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:21,894 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2022-04-06 13:58:21,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 13:58:21,894 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:21,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:21,895 INFO L85 PathProgramCache]: Analyzing trace with hash 332221618, now seen corresponding path program 1 times [2022-04-06 13:58:21,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:21,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810549035] [2022-04-06 13:58:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:21,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:21,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:58:21,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:21,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810549035] [2022-04-06 13:58:21,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810549035] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:21,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:21,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956828183] [2022-04-06 13:58:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:21,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:21,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:21,995 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:24,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:24,433 INFO L93 Difference]: Finished difference Result 649 states and 999 transitions. [2022-04-06 13:58:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-04-06 13:58:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:24,434 INFO L225 Difference]: With dead ends: 649 [2022-04-06 13:58:24,434 INFO L226 Difference]: Without dead ends: 376 [2022-04-06 13:58:24,435 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:24,435 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 145 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:24,436 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 368 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:58:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-04-06 13:58:24,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 299. [2022-04-06 13:58:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:24,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-04-06 13:58:24,441 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 102 [2022-04-06 13:58:24,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:24,441 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-04-06 13:58:24,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:24,441 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-04-06 13:58:24,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-04-06 13:58:24,441 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:24,442 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2022-04-06 13:58:24,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 13:58:24,442 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:24,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:24,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1369020480, now seen corresponding path program 1 times [2022-04-06 13:58:24,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:24,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146939548] [2022-04-06 13:58:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-06 13:58:24,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:24,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146939548] [2022-04-06 13:58:24,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146939548] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:24,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:24,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:24,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950442375] [2022-04-06 13:58:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:24,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:24,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:24,580 INFO L87 Difference]: Start difference. First operand 299 states and 455 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) [2022-04-06 13:58:26,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:26,987 INFO L93 Difference]: Finished difference Result 639 states and 976 transitions. [2022-04-06 13:58:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:26,987 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 105 [2022-04-06 13:58:26,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:26,989 INFO L225 Difference]: With dead ends: 639 [2022-04-06 13:58:26,989 INFO L226 Difference]: Without dead ends: 366 [2022-04-06 13:58:26,989 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:26,990 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 134 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:26,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 382 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:58:26,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-04-06 13:58:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 299. [2022-04-06 13:58:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 294 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:26,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2022-04-06 13:58:26,997 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 105 [2022-04-06 13:58:26,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:26,997 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2022-04-06 13:58:26,997 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) [2022-04-06 13:58:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2022-04-06 13:58:26,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-06 13:58:26,998 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:26,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:26,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 13:58:26,998 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:26,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:26,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1497476783, now seen corresponding path program 1 times [2022-04-06 13:58:26,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:26,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021010469] [2022-04-06 13:58:27,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:27,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:58:27,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:27,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021010469] [2022-04-06 13:58:27,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021010469] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:27,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:27,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:27,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228999392] [2022-04-06 13:58:27,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:27,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:27,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:27,149 INFO L87 Difference]: Start difference. First operand 299 states and 450 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:30,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:32,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:32,903 INFO L93 Difference]: Finished difference Result 651 states and 985 transitions. [2022-04-06 13:58:32,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:32,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 109 [2022-04-06 13:58:32,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:32,905 INFO L225 Difference]: With dead ends: 651 [2022-04-06 13:58:32,905 INFO L226 Difference]: Without dead ends: 378 [2022-04-06 13:58:32,906 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:32,907 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:32,907 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 503 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 13:58:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-04-06 13:58:32,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 327. [2022-04-06 13:58:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.5124223602484472) internal successors, (487), 322 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 491 transitions. [2022-04-06 13:58:32,915 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 491 transitions. Word has length 109 [2022-04-06 13:58:32,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:32,915 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 491 transitions. [2022-04-06 13:58:32,916 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 491 transitions. [2022-04-06 13:58:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-06 13:58:32,916 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:32,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:32,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 13:58:32,917 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:32,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash 330780464, now seen corresponding path program 1 times [2022-04-06 13:58:32,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:32,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181062850] [2022-04-06 13:58:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:32,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:58:33,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:33,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181062850] [2022-04-06 13:58:33,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181062850] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:33,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:33,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:33,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313103584] [2022-04-06 13:58:33,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:33,019 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:33,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:33,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:33,019 INFO L87 Difference]: Start difference. First operand 327 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:34,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:36,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:38,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:40,217 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 [] [2022-04-06 13:58:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:40,622 INFO L93 Difference]: Finished difference Result 735 states and 1112 transitions. [2022-04-06 13:58:40,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:40,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 109 [2022-04-06 13:58:40,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:40,623 INFO L225 Difference]: With dead ends: 735 [2022-04-06 13:58:40,624 INFO L226 Difference]: Without dead ends: 434 [2022-04-06 13:58:40,624 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:40,625 INFO L913 BasicCegarLoop]: 155 mSDtfsCounter, 122 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:40,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 418 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-04-06 13:58:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-04-06 13:58:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 325. [2022-04-06 13:58:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.509375) internal successors, (483), 320 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 487 transitions. [2022-04-06 13:58:40,640 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 487 transitions. Word has length 109 [2022-04-06 13:58:40,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:40,640 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 487 transitions. [2022-04-06 13:58:40,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 487 transitions. [2022-04-06 13:58:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-06 13:58:40,641 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:40,642 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:40,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 13:58:40,642 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:40,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:40,642 INFO L85 PathProgramCache]: Analyzing trace with hash 399122611, now seen corresponding path program 1 times [2022-04-06 13:58:40,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:40,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346478556] [2022-04-06 13:58:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:40,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:40,781 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:58:40,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:40,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346478556] [2022-04-06 13:58:40,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346478556] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:40,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:40,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:40,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075545869] [2022-04-06 13:58:40,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:40,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:40,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:40,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:40,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:40,783 INFO L87 Difference]: Start difference. First operand 325 states and 487 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:42,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:44,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:45,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:46,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:47,079 INFO L93 Difference]: Finished difference Result 767 states and 1162 transitions. [2022-04-06 13:58:47,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:47,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-06 13:58:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:47,081 INFO L225 Difference]: With dead ends: 767 [2022-04-06 13:58:47,081 INFO L226 Difference]: Without dead ends: 468 [2022-04-06 13:58:47,081 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:47,082 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:47,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 372 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 13:58:47,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-04-06 13:58:47,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 389. [2022-04-06 13:58:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5078125) internal successors, (579), 384 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:47,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 583 transitions. [2022-04-06 13:58:47,088 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 583 transitions. Word has length 110 [2022-04-06 13:58:47,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:47,088 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 583 transitions. [2022-04-06 13:58:47,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 583 transitions. [2022-04-06 13:58:47,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-06 13:58:47,089 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:47,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:47,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 13:58:47,089 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:47,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:47,090 INFO L85 PathProgramCache]: Analyzing trace with hash -314587267, now seen corresponding path program 1 times [2022-04-06 13:58:47,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:47,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315718203] [2022-04-06 13:58:47,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:47,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:47,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:47,177 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:58:47,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:47,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315718203] [2022-04-06 13:58:47,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315718203] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:47,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:47,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:47,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332850885] [2022-04-06 13:58:47,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:47,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:47,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:47,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:47,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:47,178 INFO L87 Difference]: Start difference. First operand 389 states and 583 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:50,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:52,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:52,566 INFO L93 Difference]: Finished difference Result 826 states and 1242 transitions. [2022-04-06 13:58:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:52,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-06 13:58:52,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:52,568 INFO L225 Difference]: With dead ends: 826 [2022-04-06 13:58:52,568 INFO L226 Difference]: Without dead ends: 463 [2022-04-06 13:58:52,569 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:52,569 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 67 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:52,569 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 509 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 13:58:52,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-04-06 13:58:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 418. [2022-04-06 13:58:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 1.5036319612590798) internal successors, (621), 413 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 625 transitions. [2022-04-06 13:58:52,576 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 625 transitions. Word has length 110 [2022-04-06 13:58:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:52,576 INFO L478 AbstractCegarLoop]: Abstraction has 418 states and 625 transitions. [2022-04-06 13:58:52,576 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 625 transitions. [2022-04-06 13:58:52,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-06 13:58:52,577 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:52,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:52,577 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 13:58:52,577 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:52,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:52,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2122434788, now seen corresponding path program 1 times [2022-04-06 13:58:52,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:52,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564519659] [2022-04-06 13:58:52,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:52,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:52,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-04-06 13:58:52,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:52,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564519659] [2022-04-06 13:58:52,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564519659] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:52,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:52,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:52,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546780315] [2022-04-06 13:58:52,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:52,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:52,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:52,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:52,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:52,667 INFO L87 Difference]: Start difference. First operand 418 states and 625 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:55,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:58:57,660 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 [] [2022-04-06 13:58:58,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:58:58,049 INFO L93 Difference]: Finished difference Result 848 states and 1275 transitions. [2022-04-06 13:58:58,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:58:58,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-06 13:58:58,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:58:58,052 INFO L225 Difference]: With dead ends: 848 [2022-04-06 13:58:58,052 INFO L226 Difference]: Without dead ends: 456 [2022-04-06 13:58:58,071 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:58:58,072 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 28 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:58:58,072 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 13:58:58,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-04-06 13:58:58,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2022-04-06 13:58:58,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 437 states have (on average 1.5011441647597255) internal successors, (656), 437 states have internal predecessors, (656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:58,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 660 transitions. [2022-04-06 13:58:58,079 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 660 transitions. Word has length 110 [2022-04-06 13:58:58,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:58:58,079 INFO L478 AbstractCegarLoop]: Abstraction has 442 states and 660 transitions. [2022-04-06 13:58:58,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:58:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 660 transitions. [2022-04-06 13:58:58,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 13:58:58,080 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:58:58,080 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:58:58,080 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 13:58:58,081 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:58:58,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:58:58,081 INFO L85 PathProgramCache]: Analyzing trace with hash -555835195, now seen corresponding path program 1 times [2022-04-06 13:58:58,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:58:58,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648166633] [2022-04-06 13:58:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:58:58,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:58:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:58,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:58:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:58:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:58:58,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:58:58,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648166633] [2022-04-06 13:58:58,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648166633] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:58:58,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:58:58,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:58:58,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143427474] [2022-04-06 13:58:58,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:58:58,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:58:58,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:58:58,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:58:58,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:58:58,207 INFO L87 Difference]: Start difference. First operand 442 states and 660 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:00,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:02,213 INFO L93 Difference]: Finished difference Result 965 states and 1448 transitions. [2022-04-06 13:59:02,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:02,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 13:59:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:02,215 INFO L225 Difference]: With dead ends: 965 [2022-04-06 13:59:02,215 INFO L226 Difference]: Without dead ends: 549 [2022-04-06 13:59:02,216 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:02,216 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 111 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:02,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 396 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 13:59:02,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-04-06 13:59:02,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 479. [2022-04-06 13:59:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5021097046413503) internal successors, (712), 474 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 716 transitions. [2022-04-06 13:59:02,224 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 716 transitions. Word has length 122 [2022-04-06 13:59:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:02,224 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 716 transitions. [2022-04-06 13:59:02,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 716 transitions. [2022-04-06 13:59:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 13:59:02,225 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:02,225 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 13:59:02,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 13:59:02,225 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:02,226 INFO L85 PathProgramCache]: Analyzing trace with hash -380141108, now seen corresponding path program 1 times [2022-04-06 13:59:02,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:02,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386724679] [2022-04-06 13:59:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:02,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:02,314 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-04-06 13:59:02,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:02,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386724679] [2022-04-06 13:59:02,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386724679] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:02,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:02,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:02,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582840589] [2022-04-06 13:59:02,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:02,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:02,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:02,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:02,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:02,315 INFO L87 Difference]: Start difference. First operand 479 states and 716 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:03,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:04,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:06,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:06,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:06,873 INFO L93 Difference]: Finished difference Result 975 states and 1462 transitions. [2022-04-06 13:59:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:06,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 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 123 [2022-04-06 13:59:06,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:06,874 INFO L225 Difference]: With dead ends: 975 [2022-04-06 13:59:06,874 INFO L226 Difference]: Without dead ends: 522 [2022-04-06 13:59:06,875 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:06,875 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 76 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:06,876 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 511 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-04-06 13:59:06,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-04-06 13:59:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 479. [2022-04-06 13:59:06,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5) internal successors, (711), 474 states have internal predecessors, (711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 715 transitions. [2022-04-06 13:59:06,883 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 715 transitions. Word has length 123 [2022-04-06 13:59:06,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:06,883 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 715 transitions. [2022-04-06 13:59:06,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 715 transitions. [2022-04-06 13:59:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 13:59:06,884 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:06,884 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:06,884 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 13:59:06,884 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:06,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1463132130, now seen corresponding path program 1 times [2022-04-06 13:59:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:06,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288254784] [2022-04-06 13:59:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:07,006 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:59:07,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:07,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288254784] [2022-04-06 13:59:07,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288254784] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:07,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:07,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:07,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910935607] [2022-04-06 13:59:07,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:07,007 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:07,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:07,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:07,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:07,008 INFO L87 Difference]: Start difference. First operand 479 states and 715 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:09,977 INFO L93 Difference]: Finished difference Result 973 states and 1458 transitions. [2022-04-06 13:59:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:09,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 13:59:09,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:09,979 INFO L225 Difference]: With dead ends: 973 [2022-04-06 13:59:09,979 INFO L226 Difference]: Without dead ends: 520 [2022-04-06 13:59:09,980 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:09,980 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 52 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:09,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 515 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-06 13:59:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-04-06 13:59:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 490. [2022-04-06 13:59:09,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5010309278350515) internal successors, (728), 485 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 732 transitions. [2022-04-06 13:59:09,987 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 732 transitions. Word has length 123 [2022-04-06 13:59:09,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:09,987 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 732 transitions. [2022-04-06 13:59:09,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:09,987 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 732 transitions. [2022-04-06 13:59:09,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 13:59:09,988 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:09,988 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 13:59:09,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 13:59:09,988 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:09,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:09,988 INFO L85 PathProgramCache]: Analyzing trace with hash 486911117, now seen corresponding path program 1 times [2022-04-06 13:59:09,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:09,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645405590] [2022-04-06 13:59:09,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:09,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-04-06 13:59:10,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:10,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645405590] [2022-04-06 13:59:10,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645405590] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:10,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:10,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:10,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270871603] [2022-04-06 13:59:10,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:10,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:10,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:10,078 INFO L87 Difference]: Start difference. First operand 490 states and 732 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:11,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:13,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:15,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:17,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:17,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:17,836 INFO L93 Difference]: Finished difference Result 1019 states and 1528 transitions. [2022-04-06 13:59:17,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:17,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 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 123 [2022-04-06 13:59:17,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:17,837 INFO L225 Difference]: With dead ends: 1019 [2022-04-06 13:59:17,838 INFO L226 Difference]: Without dead ends: 555 [2022-04-06 13:59:17,838 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:17,838 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 132 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:17,839 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 364 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 453 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-04-06 13:59:17,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-04-06 13:59:17,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 490. [2022-04-06 13:59:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.4845360824742269) internal successors, (720), 485 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 724 transitions. [2022-04-06 13:59:17,845 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 724 transitions. Word has length 123 [2022-04-06 13:59:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:17,846 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 724 transitions. [2022-04-06 13:59:17,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:17,846 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 724 transitions. [2022-04-06 13:59:17,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 13:59:17,846 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:17,847 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:17,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 13:59:17,847 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:17,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:17,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1679933841, now seen corresponding path program 1 times [2022-04-06 13:59:17,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:17,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246070115] [2022-04-06 13:59:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:17,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-04-06 13:59:17,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:17,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246070115] [2022-04-06 13:59:17,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246070115] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:17,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:17,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:17,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882601580] [2022-04-06 13:59:17,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:17,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:17,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:17,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:17,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:17,939 INFO L87 Difference]: Start difference. First operand 490 states and 724 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:19,777 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 [] [2022-04-06 13:59:21,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:23,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:24,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:24,003 INFO L93 Difference]: Finished difference Result 1021 states and 1514 transitions. [2022-04-06 13:59:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 13:59:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:24,004 INFO L225 Difference]: With dead ends: 1021 [2022-04-06 13:59:24,005 INFO L226 Difference]: Without dead ends: 557 [2022-04-06 13:59:24,005 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:24,006 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 124 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:24,006 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 380 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 13:59:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-04-06 13:59:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 490. [2022-04-06 13:59:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.468041237113402) internal successors, (712), 485 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 716 transitions. [2022-04-06 13:59:24,013 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 716 transitions. Word has length 131 [2022-04-06 13:59:24,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:24,013 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 716 transitions. [2022-04-06 13:59:24,013 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:24,013 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 716 transitions. [2022-04-06 13:59:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 13:59:24,014 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:24,014 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:24,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 13:59:24,014 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:24,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:24,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1091438265, now seen corresponding path program 1 times [2022-04-06 13:59:24,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:24,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492486176] [2022-04-06 13:59:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:24,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:59:24,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:24,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492486176] [2022-04-06 13:59:24,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492486176] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:24,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:24,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:24,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502118289] [2022-04-06 13:59:24,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:24,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:24,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:24,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:24,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:24,139 INFO L87 Difference]: Start difference. First operand 490 states and 716 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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) [2022-04-06 13:59:27,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:27,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:27,957 INFO L93 Difference]: Finished difference Result 978 states and 1433 transitions. [2022-04-06 13:59:27,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:27,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 131 [2022-04-06 13:59:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:27,961 INFO L225 Difference]: With dead ends: 978 [2022-04-06 13:59:27,961 INFO L226 Difference]: Without dead ends: 514 [2022-04-06 13:59:27,962 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 [2022-04-06 13:59:27,963 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:27,963 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 535 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-04-06 13:59:27,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-04-06 13:59:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 493. [2022-04-06 13:59:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 488 states have (on average 1.4651639344262295) internal successors, (715), 488 states have internal predecessors, (715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 719 transitions. [2022-04-06 13:59:27,981 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 719 transitions. Word has length 131 [2022-04-06 13:59:27,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:27,981 INFO L478 AbstractCegarLoop]: Abstraction has 493 states and 719 transitions. [2022-04-06 13:59:27,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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) [2022-04-06 13:59:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 719 transitions. [2022-04-06 13:59:27,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 13:59:27,982 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:27,982 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:27,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 13:59:27,982 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:27,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash 194878290, now seen corresponding path program 1 times [2022-04-06 13:59:27,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:27,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071327513] [2022-04-06 13:59:27,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:27,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:28,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-04-06 13:59:28,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:28,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071327513] [2022-04-06 13:59:28,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071327513] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:28,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:28,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:28,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658773714] [2022-04-06 13:59:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:28,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:28,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:28,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:28,120 INFO L87 Difference]: Start difference. First operand 493 states and 719 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-04-06 13:59:30,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:30,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:30,415 INFO L93 Difference]: Finished difference Result 1422 states and 2093 transitions. [2022-04-06 13:59:30,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:30,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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 131 [2022-04-06 13:59:30,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:30,418 INFO L225 Difference]: With dead ends: 1422 [2022-04-06 13:59:30,418 INFO L226 Difference]: Without dead ends: 955 [2022-04-06 13:59:30,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:30,419 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:30,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:59:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-04-06 13:59:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2022-04-06 13:59:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 950 states have (on average 1.4631578947368422) internal successors, (1390), 950 states have internal predecessors, (1390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1394 transitions. [2022-04-06 13:59:30,431 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1394 transitions. Word has length 131 [2022-04-06 13:59:30,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:30,431 INFO L478 AbstractCegarLoop]: Abstraction has 955 states and 1394 transitions. [2022-04-06 13:59:30,431 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-04-06 13:59:30,431 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1394 transitions. [2022-04-06 13:59:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 13:59:30,432 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:30,432 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:30,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 13:59:30,433 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:30,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:30,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1014363949, now seen corresponding path program 1 times [2022-04-06 13:59:30,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:30,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124142534] [2022-04-06 13:59:30,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:30,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-04-06 13:59:30,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:30,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124142534] [2022-04-06 13:59:30,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124142534] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:30,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:30,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:30,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546985951] [2022-04-06 13:59:30,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:30,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:30,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:30,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:30,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:30,507 INFO L87 Difference]: Start difference. First operand 955 states and 1394 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 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) [2022-04-06 13:59:33,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:33,957 INFO L93 Difference]: Finished difference Result 1911 states and 2795 transitions. [2022-04-06 13:59:33,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:33,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 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 131 [2022-04-06 13:59:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:33,960 INFO L225 Difference]: With dead ends: 1911 [2022-04-06 13:59:33,960 INFO L226 Difference]: Without dead ends: 982 [2022-04-06 13:59:33,961 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:33,962 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:33,962 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 13:59:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-04-06 13:59:33,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 982. [2022-04-06 13:59:33,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 977 states have (on average 1.458546571136131) internal successors, (1425), 977 states have internal predecessors, (1425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1429 transitions. [2022-04-06 13:59:33,973 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1429 transitions. Word has length 131 [2022-04-06 13:59:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:33,973 INFO L478 AbstractCegarLoop]: Abstraction has 982 states and 1429 transitions. [2022-04-06 13:59:33,973 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 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) [2022-04-06 13:59:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1429 transitions. [2022-04-06 13:59:33,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 13:59:33,975 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:33,975 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:33,975 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 13:59:33,975 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:33,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:33,976 INFO L85 PathProgramCache]: Analyzing trace with hash -955143212, now seen corresponding path program 1 times [2022-04-06 13:59:33,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:33,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210098026] [2022-04-06 13:59:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:33,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-04-06 13:59:34,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:34,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210098026] [2022-04-06 13:59:34,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210098026] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:34,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:34,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:34,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123191926] [2022-04-06 13:59:34,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:34,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:34,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:34,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:34,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:34,052 INFO L87 Difference]: Start difference. First operand 982 states and 1429 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:36,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:38,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:39,204 INFO L93 Difference]: Finished difference Result 1940 states and 2831 transitions. [2022-04-06 13:59:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:39,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 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 [2022-04-06 13:59:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:39,207 INFO L225 Difference]: With dead ends: 1940 [2022-04-06 13:59:39,207 INFO L226 Difference]: Without dead ends: 984 [2022-04-06 13:59:39,208 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:39,214 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:39,215 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 13:59:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-04-06 13:59:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 984. [2022-04-06 13:59:39,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 979 states have (on average 1.4576098059244127) internal successors, (1427), 979 states have internal predecessors, (1427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1431 transitions. [2022-04-06 13:59:39,227 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1431 transitions. Word has length 131 [2022-04-06 13:59:39,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:39,227 INFO L478 AbstractCegarLoop]: Abstraction has 984 states and 1431 transitions. [2022-04-06 13:59:39,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:39,227 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1431 transitions. [2022-04-06 13:59:39,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-06 13:59:39,229 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:39,229 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:39,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 13:59:39,229 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:39,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:39,229 INFO L85 PathProgramCache]: Analyzing trace with hash -763774951, now seen corresponding path program 1 times [2022-04-06 13:59:39,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:39,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330159641] [2022-04-06 13:59:39,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:39,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 13:59:39,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:39,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330159641] [2022-04-06 13:59:39,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330159641] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:39,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:39,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957619156] [2022-04-06 13:59:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:39,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:39,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:39,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:39,317 INFO L87 Difference]: Start difference. First operand 984 states and 1431 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:41,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:41,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:41,589 INFO L93 Difference]: Finished difference Result 2407 states and 3519 transitions. [2022-04-06 13:59:41,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:41,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-06 13:59:41,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:41,593 INFO L225 Difference]: With dead ends: 2407 [2022-04-06 13:59:41,593 INFO L226 Difference]: Without dead ends: 1451 [2022-04-06 13:59:41,594 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:41,594 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:41,594 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 244 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:59:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-04-06 13:59:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1449. [2022-04-06 13:59:41,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1444 states have (on average 1.4632963988919667) internal successors, (2113), 1444 states have internal predecessors, (2113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:41,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2117 transitions. [2022-04-06 13:59:41,615 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2117 transitions. Word has length 133 [2022-04-06 13:59:41,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:41,615 INFO L478 AbstractCegarLoop]: Abstraction has 1449 states and 2117 transitions. [2022-04-06 13:59:41,616 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2117 transitions. [2022-04-06 13:59:41,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-06 13:59:41,617 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:41,617 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:41,617 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 13:59:41,617 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:41,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:41,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-04-06 13:59:41,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:41,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774828836] [2022-04-06 13:59:41,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:41,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 13:59:41,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:41,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774828836] [2022-04-06 13:59:41,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774828836] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:41,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:41,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:41,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213729930] [2022-04-06 13:59:41,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:41,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:41,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:41,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:41,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:41,719 INFO L87 Difference]: Start difference. First operand 1449 states and 2117 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:43,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:43,989 INFO L93 Difference]: Finished difference Result 1918 states and 2807 transitions. [2022-04-06 13:59:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:43,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 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 134 [2022-04-06 13:59:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:43,994 INFO L225 Difference]: With dead ends: 1918 [2022-04-06 13:59:43,994 INFO L226 Difference]: Without dead ends: 1916 [2022-04-06 13:59:43,995 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:43,996 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:43,996 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 13:59:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-04-06 13:59:44,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2022-04-06 13:59:44,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1909 states have (on average 1.466736511262441) internal successors, (2800), 1909 states have internal predecessors, (2800), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2804 transitions. [2022-04-06 13:59:44,021 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2804 transitions. Word has length 134 [2022-04-06 13:59:44,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:44,021 INFO L478 AbstractCegarLoop]: Abstraction has 1914 states and 2804 transitions. [2022-04-06 13:59:44,021 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:44,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2804 transitions. [2022-04-06 13:59:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 13:59:44,024 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:44,024 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:44,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 13:59:44,024 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:44,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash 973334476, now seen corresponding path program 1 times [2022-04-06 13:59:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:44,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107864367] [2022-04-06 13:59:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:44,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:44,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:59:44,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:44,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107864367] [2022-04-06 13:59:44,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107864367] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:44,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:44,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:59:44,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445390284] [2022-04-06 13:59:44,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:44,145 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:59:44,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:44,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:59:44,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:59:44,145 INFO L87 Difference]: Start difference. First operand 1914 states and 2804 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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) [2022-04-06 13:59:46,944 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 [] [2022-04-06 13:59:47,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:47,364 INFO L93 Difference]: Finished difference Result 4062 states and 5945 transitions. [2022-04-06 13:59:47,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:59:47,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 147 [2022-04-06 13:59:47,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:47,369 INFO L225 Difference]: With dead ends: 4062 [2022-04-06 13:59:47,369 INFO L226 Difference]: Without dead ends: 2176 [2022-04-06 13:59:47,371 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:59:47,371 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 110 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:47,372 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 382 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-06 13:59:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2022-04-06 13:59:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 1914. [2022-04-06 13:59:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1909 states have (on average 1.462545835515977) internal successors, (2792), 1909 states have internal predecessors, (2792), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2796 transitions. [2022-04-06 13:59:47,398 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2796 transitions. Word has length 147 [2022-04-06 13:59:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:47,399 INFO L478 AbstractCegarLoop]: Abstraction has 1914 states and 2796 transitions. [2022-04-06 13:59:47,399 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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) [2022-04-06 13:59:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2796 transitions. [2022-04-06 13:59:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 13:59:47,401 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:47,401 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:59:47,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 13:59:47,401 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:47,402 INFO L85 PathProgramCache]: Analyzing trace with hash -147667805, now seen corresponding path program 1 times [2022-04-06 13:59:47,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:47,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965384275] [2022-04-06 13:59:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:47,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:59:47,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:47,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965384275] [2022-04-06 13:59:47,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965384275] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:47,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:47,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:47,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428527334] [2022-04-06 13:59:47,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:47,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:47,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:47,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:47,519 INFO L87 Difference]: Start difference. First operand 1914 states and 2796 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:50,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:50,948 INFO L93 Difference]: Finished difference Result 4267 states and 6245 transitions. [2022-04-06 13:59:50,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:50,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 13:59:50,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:50,954 INFO L225 Difference]: With dead ends: 4267 [2022-04-06 13:59:50,954 INFO L226 Difference]: Without dead ends: 2381 [2022-04-06 13:59:50,956 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:50,956 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:50,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 13:59:50,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-04-06 13:59:50,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2379. [2022-04-06 13:59:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2374 states have (on average 1.4553496208930077) internal successors, (3455), 2374 states have internal predecessors, (3455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3459 transitions. [2022-04-06 13:59:50,989 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3459 transitions. Word has length 155 [2022-04-06 13:59:50,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:50,990 INFO L478 AbstractCegarLoop]: Abstraction has 2379 states and 3459 transitions. [2022-04-06 13:59:50,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:50,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3459 transitions. [2022-04-06 13:59:50,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 13:59:50,993 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:50,993 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] [2022-04-06 13:59:50,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 13:59:50,993 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:50,995 INFO L85 PathProgramCache]: Analyzing trace with hash 45595843, now seen corresponding path program 1 times [2022-04-06 13:59:50,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:50,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616656348] [2022-04-06 13:59:50,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:50,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-06 13:59:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:51,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616656348] [2022-04-06 13:59:51,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616656348] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:51,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:51,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:51,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954970307] [2022-04-06 13:59:51,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:51,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:51,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:51,131 INFO L87 Difference]: Start difference. First operand 2379 states and 3459 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:52,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:55,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:59:55,528 INFO L93 Difference]: Finished difference Result 5189 states and 7562 transitions. [2022-04-06 13:59:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:59:55,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-06 13:59:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:59:55,535 INFO L225 Difference]: With dead ends: 5189 [2022-04-06 13:59:55,535 INFO L226 Difference]: Without dead ends: 2838 [2022-04-06 13:59:55,538 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:55,538 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:59:55,538 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 576 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 13:59:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2022-04-06 13:59:55,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2838. [2022-04-06 13:59:55,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2833 states have (on average 1.4557006706671374) internal successors, (4124), 2833 states have internal predecessors, (4124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 4128 transitions. [2022-04-06 13:59:55,575 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 4128 transitions. Word has length 172 [2022-04-06 13:59:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:59:55,575 INFO L478 AbstractCegarLoop]: Abstraction has 2838 states and 4128 transitions. [2022-04-06 13:59:55,575 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 4128 transitions. [2022-04-06 13:59:55,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 13:59:55,578 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:59:55,578 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] [2022-04-06 13:59:55,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 13:59:55,578 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:59:55,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:59:55,579 INFO L85 PathProgramCache]: Analyzing trace with hash 169669090, now seen corresponding path program 1 times [2022-04-06 13:59:55,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:59:55,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393429465] [2022-04-06 13:59:55,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:59:55,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:59:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:55,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:59:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:59:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:59:55,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:59:55,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393429465] [2022-04-06 13:59:55,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393429465] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:59:55,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:59:55,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:59:55,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979862813] [2022-04-06 13:59:55,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:59:55,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:59:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:59:55,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:59:55,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:59:55,734 INFO L87 Difference]: Start difference. First operand 2838 states and 4128 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:59:58,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:59:59,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:00,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:00,394 INFO L93 Difference]: Finished difference Result 6077 states and 8856 transitions. [2022-04-06 14:00:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:00:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-06 14:00:00,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:00,407 INFO L225 Difference]: With dead ends: 6077 [2022-04-06 14:00:00,407 INFO L226 Difference]: Without dead ends: 3267 [2022-04-06 14:00:00,410 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:00:00,411 INFO L913 BasicCegarLoop]: 380 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:00,412 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 574 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 14:00:00,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-04-06 14:00:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3267. [2022-04-06 14:00:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 3262 states have (on average 1.4555487431023912) internal successors, (4748), 3262 states have internal predecessors, (4748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 4752 transitions. [2022-04-06 14:00:00,482 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 4752 transitions. Word has length 172 [2022-04-06 14:00:00,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:00,482 INFO L478 AbstractCegarLoop]: Abstraction has 3267 states and 4752 transitions. [2022-04-06 14:00:00,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:00,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 4752 transitions. [2022-04-06 14:00:00,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-04-06 14:00:00,494 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:00,494 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:00,495 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 14:00:00,495 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:00,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:00,495 INFO L85 PathProgramCache]: Analyzing trace with hash -961852132, now seen corresponding path program 1 times [2022-04-06 14:00:00,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:00,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499017246] [2022-04-06 14:00:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:00,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:00,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-04-06 14:00:00,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:00,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499017246] [2022-04-06 14:00:00,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499017246] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:00,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:00,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:00,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157004561] [2022-04-06 14:00:00,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:00,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:00,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:00,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:00,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:00,642 INFO L87 Difference]: Start difference. First operand 3267 states and 4752 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:02,364 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 [] [2022-04-06 14:00:04,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:06,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:06,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:06,968 INFO L93 Difference]: Finished difference Result 7198 states and 10430 transitions. [2022-04-06 14:00:06,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:06,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-04-06 14:00:06,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:07,002 INFO L225 Difference]: With dead ends: 7198 [2022-04-06 14:00:07,006 INFO L226 Difference]: Without dead ends: 3959 [2022-04-06 14:00:07,010 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:07,010 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 103 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:07,011 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 385 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 14:00:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2022-04-06 14:00:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3528. [2022-04-06 14:00:07,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3523 states have (on average 1.4564291796764122) internal successors, (5131), 3523 states have internal predecessors, (5131), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5135 transitions. [2022-04-06 14:00:07,118 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5135 transitions. Word has length 247 [2022-04-06 14:00:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:07,119 INFO L478 AbstractCegarLoop]: Abstraction has 3528 states and 5135 transitions. [2022-04-06 14:00:07,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5135 transitions. [2022-04-06 14:00:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-04-06 14:00:07,125 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:07,125 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:07,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 14:00:07,125 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash -731922663, now seen corresponding path program 1 times [2022-04-06 14:00:07,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:07,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452133734] [2022-04-06 14:00:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:07,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:07,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-06 14:00:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:07,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452133734] [2022-04-06 14:00:07,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452133734] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:07,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:07,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:07,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515022816] [2022-04-06 14:00:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:07,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:07,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:07,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:07,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:07,251 INFO L87 Difference]: Start difference. First operand 3528 states and 5135 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:09,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:12,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:12,393 INFO L93 Difference]: Finished difference Result 7182 states and 10451 transitions. [2022-04-06 14:00:12,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:12,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-04-06 14:00:12,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:12,399 INFO L225 Difference]: With dead ends: 7182 [2022-04-06 14:00:12,399 INFO L226 Difference]: Without dead ends: 3682 [2022-04-06 14:00:12,403 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:12,403 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 39 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:12,403 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 572 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 14:00:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2022-04-06 14:00:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3528. [2022-04-06 14:00:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3523 states have (on average 1.4544422367300596) internal successors, (5124), 3523 states have internal predecessors, (5124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5128 transitions. [2022-04-06 14:00:12,454 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5128 transitions. Word has length 248 [2022-04-06 14:00:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:12,454 INFO L478 AbstractCegarLoop]: Abstraction has 3528 states and 5128 transitions. [2022-04-06 14:00:12,454 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5128 transitions. [2022-04-06 14:00:12,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-04-06 14:00:12,460 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:12,460 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, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:12,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 14:00:12,460 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:12,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:12,461 INFO L85 PathProgramCache]: Analyzing trace with hash 353970598, now seen corresponding path program 1 times [2022-04-06 14:00:12,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:12,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006086087] [2022-04-06 14:00:12,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:12,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-06 14:00:12,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:12,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006086087] [2022-04-06 14:00:12,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006086087] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:12,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:12,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376042797] [2022-04-06 14:00:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:12,608 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:12,609 INFO L87 Difference]: Start difference. First operand 3528 states and 5128 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:15,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:15,297 INFO L93 Difference]: Finished difference Result 7497 states and 10864 transitions. [2022-04-06 14:00:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:15,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-04-06 14:00:15,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:15,303 INFO L225 Difference]: With dead ends: 7497 [2022-04-06 14:00:15,303 INFO L226 Difference]: Without dead ends: 3983 [2022-04-06 14:00:15,307 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:15,307 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 43 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:15,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 616 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 14:00:15,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2022-04-06 14:00:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3822. [2022-04-06 14:00:15,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4542834686926907) internal successors, (5551), 3817 states have internal predecessors, (5551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:15,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5555 transitions. [2022-04-06 14:00:15,391 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5555 transitions. Word has length 255 [2022-04-06 14:00:15,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:15,391 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5555 transitions. [2022-04-06 14:00:15,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:15,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5555 transitions. [2022-04-06 14:00:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-04-06 14:00:15,396 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:15,396 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:15,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 14:00:15,396 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:15,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:15,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2107997919, now seen corresponding path program 1 times [2022-04-06 14:00:15,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:15,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291686051] [2022-04-06 14:00:15,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:15,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-04-06 14:00:15,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:15,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291686051] [2022-04-06 14:00:15,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291686051] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:15,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:15,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:15,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581974692] [2022-04-06 14:00:15,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:15,532 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:15,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:15,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:15,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:15,532 INFO L87 Difference]: Start difference. First operand 3822 states and 5555 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:17,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:19,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:19,900 INFO L93 Difference]: Finished difference Result 7763 states and 11249 transitions. [2022-04-06 14:00:19,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:19,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 264 [2022-04-06 14:00:19,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:19,920 INFO L225 Difference]: With dead ends: 7763 [2022-04-06 14:00:19,920 INFO L226 Difference]: Without dead ends: 3969 [2022-04-06 14:00:19,924 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:19,925 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 55 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:19,925 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 613 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 14:00:19,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2022-04-06 14:00:19,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3822. [2022-04-06 14:00:19,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4524495677233429) internal successors, (5544), 3817 states have internal predecessors, (5544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5548 transitions. [2022-04-06 14:00:19,978 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5548 transitions. Word has length 264 [2022-04-06 14:00:19,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:19,978 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5548 transitions. [2022-04-06 14:00:19,979 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:19,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5548 transitions. [2022-04-06 14:00:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-04-06 14:00:19,984 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:19,984 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, 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, 1, 1] [2022-04-06 14:00:19,984 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 14:00:19,984 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1439825937, now seen corresponding path program 1 times [2022-04-06 14:00:19,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:19,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351415371] [2022-04-06 14:00:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-04-06 14:00:20,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:20,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351415371] [2022-04-06 14:00:20,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351415371] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:20,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:20,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:20,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799576758] [2022-04-06 14:00:20,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:20,143 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:20,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:20,144 INFO L87 Difference]: Start difference. First operand 3822 states and 5548 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:22,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:22,244 INFO L93 Difference]: Finished difference Result 7763 states and 11235 transitions. [2022-04-06 14:00:22,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-04-06 14:00:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:22,248 INFO L225 Difference]: With dead ends: 7763 [2022-04-06 14:00:22,249 INFO L226 Difference]: Without dead ends: 3969 [2022-04-06 14:00:22,251 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:22,252 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 51 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:22,252 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 611 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-06 14:00:22,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2022-04-06 14:00:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3822. [2022-04-06 14:00:22,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4506156667539953) internal successors, (5537), 3817 states have internal predecessors, (5537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5541 transitions. [2022-04-06 14:00:22,304 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5541 transitions. Word has length 267 [2022-04-06 14:00:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:22,306 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5541 transitions. [2022-04-06 14:00:22,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5541 transitions. [2022-04-06 14:00:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-04-06 14:00:22,311 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:22,311 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, 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, 1, 1] [2022-04-06 14:00:22,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 14:00:22,312 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:22,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:22,312 INFO L85 PathProgramCache]: Analyzing trace with hash 911460336, now seen corresponding path program 1 times [2022-04-06 14:00:22,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:22,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798297664] [2022-04-06 14:00:22,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:22,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 393 proven. 23 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-04-06 14:00:22,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798297664] [2022-04-06 14:00:22,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798297664] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393083366] [2022-04-06 14:00:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:22,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:22,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:00:22,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:00:22,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 14:00:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:23,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 25 conjunts are in the unsatisfiable core [2022-04-06 14:00:23,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:00:23,499 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:23,499 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 [2022-04-06 14:00:23,557 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:00:23,557 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 [2022-04-06 14:00:23,659 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 [2022-04-06 14:00:23,762 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 [2022-04-06 14:00:23,782 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:23,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 14:00:23,853 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 [2022-04-06 14:00:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 388 proven. 87 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-04-06 14:00:23,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:00:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-04-06 14:00:24,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393083366] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:24,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 14:00:24,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-06 14:00:24,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415068078] [2022-04-06 14:00:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:24,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:00:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:24,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:00:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:00:24,309 INFO L87 Difference]: Start difference. First operand 3822 states and 5541 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2022-04-06 14:00:26,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:26,526 INFO L93 Difference]: Finished difference Result 8366 states and 12095 transitions. [2022-04-06 14:00:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:00:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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 267 [2022-04-06 14:00:26,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:26,532 INFO L225 Difference]: With dead ends: 8366 [2022-04-06 14:00:26,532 INFO L226 Difference]: Without dead ends: 4572 [2022-04-06 14:00:26,536 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 14:00:26,536 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 117 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:26,537 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 392 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-06 14:00:26,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-04-06 14:00:26,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4032. [2022-04-06 14:00:26,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4380432083436803) internal successors, (5791), 4027 states have internal predecessors, (5791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5795 transitions. [2022-04-06 14:00:26,596 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5795 transitions. Word has length 267 [2022-04-06 14:00:26,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:26,596 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5795 transitions. [2022-04-06 14:00:26,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2022-04-06 14:00:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5795 transitions. [2022-04-06 14:00:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-04-06 14:00:26,601 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:26,602 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, 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, 1, 1] [2022-04-06 14:00:26,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-06 14:00:26,819 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,SelfDestructingSolverStorable43 [2022-04-06 14:00:26,820 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:26,820 INFO L85 PathProgramCache]: Analyzing trace with hash 2045348045, now seen corresponding path program 1 times [2022-04-06 14:00:26,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:26,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440014974] [2022-04-06 14:00:26,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:26,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-04-06 14:00:26,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:26,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440014974] [2022-04-06 14:00:26,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440014974] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:26,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:26,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:26,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134717802] [2022-04-06 14:00:26,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:26,968 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:26,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:26,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:26,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:26,968 INFO L87 Difference]: Start difference. First operand 4032 states and 5795 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:28,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:29,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:30,430 INFO L93 Difference]: Finished difference Result 8169 states and 11715 transitions. [2022-04-06 14:00:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:30,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-04-06 14:00:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:30,434 INFO L225 Difference]: With dead ends: 8169 [2022-04-06 14:00:30,434 INFO L226 Difference]: Without dead ends: 4165 [2022-04-06 14:00:30,438 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:30,440 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 48 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:30,440 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 607 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 14:00:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-04-06 14:00:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4032. [2022-04-06 14:00:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4363049416439035) internal successors, (5784), 4027 states have internal predecessors, (5784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:30,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5788 transitions. [2022-04-06 14:00:30,529 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5788 transitions. Word has length 268 [2022-04-06 14:00:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:30,529 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5788 transitions. [2022-04-06 14:00:30,529 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5788 transitions. [2022-04-06 14:00:30,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-04-06 14:00:30,534 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:30,534 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, 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, 1, 1] [2022-04-06 14:00:30,534 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 14:00:30,534 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:30,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:30,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1449083698, now seen corresponding path program 1 times [2022-04-06 14:00:30,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:30,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132419259] [2022-04-06 14:00:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:30,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 401 proven. 78 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-04-06 14:00:30,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:30,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132419259] [2022-04-06 14:00:30,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132419259] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:30,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087967828] [2022-04-06 14:00:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:30,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:30,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:00:30,677 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) [2022-04-06 14:00:30,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 14:00:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:31,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 25 conjunts are in the unsatisfiable core [2022-04-06 14:00:31,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:00:31,633 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:31,633 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 [2022-04-06 14:00:31,671 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:00:31,672 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 [2022-04-06 14:00:31,728 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 [2022-04-06 14:00:31,845 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 [2022-04-06 14:00:31,872 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:31,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 14:00:31,925 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 [2022-04-06 14:00:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 393 proven. 85 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-04-06 14:00:32,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:00:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-04-06 14:00:32,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087967828] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:32,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 14:00:32,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-06 14:00:32,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404114563] [2022-04-06 14:00:32,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:32,324 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:00:32,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:00:32,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:00:32,324 INFO L87 Difference]: Start difference. First operand 4032 states and 5788 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2022-04-06 14:00:33,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:33,726 INFO L93 Difference]: Finished difference Result 8485 states and 12148 transitions. [2022-04-06 14:00:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:00:33,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 268 [2022-04-06 14:00:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:33,730 INFO L225 Difference]: With dead ends: 8485 [2022-04-06 14:00:33,730 INFO L226 Difference]: Without dead ends: 4481 [2022-04-06 14:00:33,733 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 14:00:33,733 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 116 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:33,734 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 372 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-06 14:00:33,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2022-04-06 14:00:33,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4032. [2022-04-06 14:00:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4246337223739756) internal successors, (5737), 4027 states have internal predecessors, (5737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5741 transitions. [2022-04-06 14:00:33,789 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5741 transitions. Word has length 268 [2022-04-06 14:00:33,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:33,789 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5741 transitions. [2022-04-06 14:00:33,789 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2022-04-06 14:00:33,789 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5741 transitions. [2022-04-06 14:00:33,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-04-06 14:00:33,794 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:33,794 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, 5, 5, 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, 1, 1] [2022-04-06 14:00:33,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-06 14:00:34,007 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,SelfDestructingSolverStorable45 [2022-04-06 14:00:34,007 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash -530631723, now seen corresponding path program 1 times [2022-04-06 14:00:34,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:34,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714074025] [2022-04-06 14:00:34,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:34,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 14:00:34,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:34,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714074025] [2022-04-06 14:00:34,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714074025] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:34,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:34,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:34,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757512497] [2022-04-06 14:00:34,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:34,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:34,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:34,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:34,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:34,168 INFO L87 Difference]: Start difference. First operand 4032 states and 5741 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:35,370 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 [] [2022-04-06 14:00:37,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:39,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:41,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:41,470 INFO L93 Difference]: Finished difference Result 8169 states and 11607 transitions. [2022-04-06 14:00:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:41,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-04-06 14:00:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:41,474 INFO L225 Difference]: With dead ends: 8169 [2022-04-06 14:00:41,474 INFO L226 Difference]: Without dead ends: 4165 [2022-04-06 14:00:41,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:41,478 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 43 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:41,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 605 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 501 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-06 14:00:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-04-06 14:00:41,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4032. [2022-04-06 14:00:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.422895455674199) internal successors, (5730), 4027 states have internal predecessors, (5730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:41,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5734 transitions. [2022-04-06 14:00:41,546 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5734 transitions. Word has length 277 [2022-04-06 14:00:41,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:41,547 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5734 transitions. [2022-04-06 14:00:41,547 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:41,547 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5734 transitions. [2022-04-06 14:00:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-04-06 14:00:41,551 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:41,552 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, 5, 5, 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, 1, 1] [2022-04-06 14:00:41,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 14:00:41,552 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:41,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1305211124, now seen corresponding path program 1 times [2022-04-06 14:00:41,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:41,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001584477] [2022-04-06 14:00:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:41,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:41,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 432 proven. 90 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-04-06 14:00:41,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:41,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001584477] [2022-04-06 14:00:41,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001584477] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:41,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410348184] [2022-04-06 14:00:41,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:41,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:41,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:00:41,736 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) [2022-04-06 14:00:41,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 14:00:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:42,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 25 conjunts are in the unsatisfiable core [2022-04-06 14:00:42,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:00:42,588 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:42,589 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 [2022-04-06 14:00:42,634 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:00:42,634 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 [2022-04-06 14:00:42,738 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 [2022-04-06 14:00:42,860 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 [2022-04-06 14:00:42,873 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:42,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 14:00:42,928 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 [2022-04-06 14:00:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 428 proven. 77 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-04-06 14:00:42,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:00:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 14:00:43,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410348184] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:43,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 14:00:43,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-06 14:00:43,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408671408] [2022-04-06 14:00:43,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:43,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:00:43,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:43,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:00:43,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:00:43,308 INFO L87 Difference]: Start difference. First operand 4032 states and 5734 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2022-04-06 14:00:45,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:45,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:45,781 INFO L93 Difference]: Finished difference Result 8786 states and 12467 transitions. [2022-04-06 14:00:45,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:00:45,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 277 [2022-04-06 14:00:45,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:45,786 INFO L225 Difference]: With dead ends: 8786 [2022-04-06 14:00:45,786 INFO L226 Difference]: Without dead ends: 4782 [2022-04-06 14:00:45,789 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 14:00:45,790 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 111 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:45,790 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 372 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:00:45,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2022-04-06 14:00:45,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 4277. [2022-04-06 14:00:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4152621722846441) internal successors, (6046), 4272 states have internal predecessors, (6046), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:45,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6050 transitions. [2022-04-06 14:00:45,850 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6050 transitions. Word has length 277 [2022-04-06 14:00:45,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:45,850 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6050 transitions. [2022-04-06 14:00:45,850 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2022-04-06 14:00:45,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6050 transitions. [2022-04-06 14:00:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-04-06 14:00:45,855 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:45,855 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:45,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-04-06 14:00:46,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:46,065 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:46,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:46,066 INFO L85 PathProgramCache]: Analyzing trace with hash -281690015, now seen corresponding path program 1 times [2022-04-06 14:00:46,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:46,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111216095] [2022-04-06 14:00:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:46,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-04-06 14:00:46,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:46,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111216095] [2022-04-06 14:00:46,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111216095] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:46,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:46,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:46,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147199744] [2022-04-06 14:00:46,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:46,261 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:46,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:46,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:46,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:46,261 INFO L87 Difference]: Start difference. First operand 4277 states and 6050 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:48,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:50,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:51,884 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 [] [2022-04-06 14:00:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:52,298 INFO L93 Difference]: Finished difference Result 8624 states and 12190 transitions. [2022-04-06 14:00:52,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:52,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-04-06 14:00:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:52,304 INFO L225 Difference]: With dead ends: 8624 [2022-04-06 14:00:52,304 INFO L226 Difference]: Without dead ends: 4375 [2022-04-06 14:00:52,311 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:52,315 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 29 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:52,317 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 580 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 14:00:52,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4375 states. [2022-04-06 14:00:52,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4375 to 4277. [2022-04-06 14:00:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.413623595505618) internal successors, (6039), 4272 states have internal predecessors, (6039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6043 transitions. [2022-04-06 14:00:52,443 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6043 transitions. Word has length 278 [2022-04-06 14:00:52,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:52,444 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6043 transitions. [2022-04-06 14:00:52,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6043 transitions. [2022-04-06 14:00:52,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-04-06 14:00:52,450 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:52,450 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, 5, 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, 1, 1] [2022-04-06 14:00:52,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 14:00:52,451 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:52,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:52,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1635455745, now seen corresponding path program 1 times [2022-04-06 14:00:52,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:52,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008817838] [2022-04-06 14:00:52,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:52,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:52,572 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 14:00:52,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:52,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008817838] [2022-04-06 14:00:52,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008817838] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:52,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:52,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:52,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908589024] [2022-04-06 14:00:52,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:52,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:52,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:52,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:52,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:52,573 INFO L87 Difference]: Start difference. First operand 4277 states and 6043 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:54,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:56,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:57,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:57,928 INFO L93 Difference]: Finished difference Result 8645 states and 12197 transitions. [2022-04-06 14:00:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:57,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-04-06 14:00:57,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:57,932 INFO L225 Difference]: With dead ends: 8645 [2022-04-06 14:00:57,932 INFO L226 Difference]: Without dead ends: 4396 [2022-04-06 14:00:57,936 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:57,936 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 40 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:57,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 601 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 14:00:57,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2022-04-06 14:00:57,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4277. [2022-04-06 14:00:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4119850187265917) internal successors, (6032), 4272 states have internal predecessors, (6032), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:58,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6036 transitions. [2022-04-06 14:00:58,018 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6036 transitions. Word has length 278 [2022-04-06 14:00:58,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:58,018 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6036 transitions. [2022-04-06 14:00:58,019 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:58,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6036 transitions. [2022-04-06 14:00:58,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-04-06 14:00:58,023 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:58,023 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, 5, 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, 1, 1] [2022-04-06 14:00:58,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-06 14:00:58,024 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:58,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:58,024 INFO L85 PathProgramCache]: Analyzing trace with hash -558902336, now seen corresponding path program 1 times [2022-04-06 14:00:58,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:58,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521455379] [2022-04-06 14:00:58,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:58,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 436 proven. 93 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-04-06 14:00:58,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:58,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521455379] [2022-04-06 14:00:58,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521455379] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:58,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873391213] [2022-04-06 14:00:58,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:58,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:00:58,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:00:58,171 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) [2022-04-06 14:00:58,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 14:00:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:59,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 25 conjunts are in the unsatisfiable core [2022-04-06 14:00:59,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:00:59,156 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:59,157 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 [2022-04-06 14:00:59,199 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:00:59,199 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 [2022-04-06 14:00:59,266 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 [2022-04-06 14:00:59,376 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 [2022-04-06 14:00:59,391 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:00:59,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 14:00:59,431 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 [2022-04-06 14:00:59,545 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 433 proven. 75 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-04-06 14:00:59,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:00:59,785 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 14:00:59,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873391213] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 14:00:59,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 14:00:59,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-06 14:00:59,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132861295] [2022-04-06 14:00:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:59,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:00:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:59,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:00:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:00:59,786 INFO L87 Difference]: Start difference. First operand 4277 states and 6036 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2022-04-06 14:01:01,453 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 [] [2022-04-06 14:01:01,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:01,727 INFO L93 Difference]: Finished difference Result 8975 states and 12644 transitions. [2022-04-06 14:01:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:01:01,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 278 [2022-04-06 14:01:01,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:01,757 INFO L225 Difference]: With dead ends: 8975 [2022-04-06 14:01:01,757 INFO L226 Difference]: Without dead ends: 4726 [2022-04-06 14:01:01,760 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 14:01:01,763 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 110 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:01,763 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-06 14:01:01,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2022-04-06 14:01:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4277. [2022-04-06 14:01:01,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4040262172284643) internal successors, (5998), 4272 states have internal predecessors, (5998), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6002 transitions. [2022-04-06 14:01:01,826 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6002 transitions. Word has length 278 [2022-04-06 14:01:01,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:01,827 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6002 transitions. [2022-04-06 14:01:01,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2022-04-06 14:01:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6002 transitions. [2022-04-06 14:01:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-04-06 14:01:01,831 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:01,831 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, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:01,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-06 14:01:02,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:01:02,047 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:02,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:02,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1512191379, now seen corresponding path program 1 times [2022-04-06 14:01:02,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:02,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569119671] [2022-04-06 14:01:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:02,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-04-06 14:01:02,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:02,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569119671] [2022-04-06 14:01:02,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569119671] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:02,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:02,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:02,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30866982] [2022-04-06 14:01:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:02,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:02,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:02,355 INFO L87 Difference]: Start difference. First operand 4277 states and 6002 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:04,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:04,714 INFO L93 Difference]: Finished difference Result 8695 states and 12198 transitions. [2022-04-06 14:01:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:04,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-04-06 14:01:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:04,719 INFO L225 Difference]: With dead ends: 8695 [2022-04-06 14:01:04,719 INFO L226 Difference]: Without dead ends: 4446 [2022-04-06 14:01:04,723 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:04,723 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 14 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:04,724 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 565 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 14:01:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-04-06 14:01:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 4424. [2022-04-06 14:01:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.401674587010636) internal successors, (6194), 4419 states have internal predecessors, (6194), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:04,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6198 transitions. [2022-04-06 14:01:04,854 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6198 transitions. Word has length 286 [2022-04-06 14:01:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:04,854 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6198 transitions. [2022-04-06 14:01:04,854 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:04,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6198 transitions. [2022-04-06 14:01:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-04-06 14:01:04,858 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:04,858 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:04,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-06 14:01:04,858 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1869106304, now seen corresponding path program 1 times [2022-04-06 14:01:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:04,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573865056] [2022-04-06 14:01:04,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:04,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:04,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-04-06 14:01:04,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:04,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573865056] [2022-04-06 14:01:04,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573865056] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:04,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:04,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:04,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860822577] [2022-04-06 14:01:04,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:04,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:04,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:04,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:04,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:04,990 INFO L87 Difference]: Start difference. First operand 4424 states and 6198 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:06,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:08,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:11,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:11,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:11,427 INFO L93 Difference]: Finished difference Result 8905 states and 12465 transitions. [2022-04-06 14:01:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:11,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-04-06 14:01:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:11,439 INFO L225 Difference]: With dead ends: 8905 [2022-04-06 14:01:11,439 INFO L226 Difference]: Without dead ends: 4509 [2022-04-06 14:01:11,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:11,443 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 44 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:11,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 589 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 14:01:11,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-04-06 14:01:11,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4424. [2022-04-06 14:01:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.400090518216791) internal successors, (6187), 4419 states have internal predecessors, (6187), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:11,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6191 transitions. [2022-04-06 14:01:11,533 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6191 transitions. Word has length 286 [2022-04-06 14:01:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:11,534 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6191 transitions. [2022-04-06 14:01:11,534 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:11,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6191 transitions. [2022-04-06 14:01:11,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-04-06 14:01:11,538 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:11,538 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:11,542 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-06 14:01:11,542 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:11,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:11,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1217942817, now seen corresponding path program 1 times [2022-04-06 14:01:11,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:11,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893147248] [2022-04-06 14:01:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:11,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-04-06 14:01:11,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:11,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893147248] [2022-04-06 14:01:11,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893147248] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:11,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:11,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:11,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454147070] [2022-04-06 14:01:11,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:11,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:11,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:11,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:11,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:11,746 INFO L87 Difference]: Start difference. First operand 4424 states and 6191 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:12,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:14,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:15,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:16,574 INFO L93 Difference]: Finished difference Result 9269 states and 12954 transitions. [2022-04-06 14:01:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:16,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-04-06 14:01:16,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:16,594 INFO L225 Difference]: With dead ends: 9269 [2022-04-06 14:01:16,594 INFO L226 Difference]: Without dead ends: 4873 [2022-04-06 14:01:16,609 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:16,610 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 120 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:16,610 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 14:01:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2022-04-06 14:01:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4424. [2022-04-06 14:01:16,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.3831183525684545) internal successors, (6112), 4419 states have internal predecessors, (6112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6116 transitions. [2022-04-06 14:01:16,703 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6116 transitions. Word has length 286 [2022-04-06 14:01:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:16,703 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6116 transitions. [2022-04-06 14:01:16,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:16,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6116 transitions. [2022-04-06 14:01:16,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-04-06 14:01:16,707 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:16,707 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, 5, 5, 5, 5, 5, 5, 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] [2022-04-06 14:01:16,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-06 14:01:16,707 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:16,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash 417605834, now seen corresponding path program 1 times [2022-04-06 14:01:16,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:16,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524668289] [2022-04-06 14:01:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:16,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:16,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-04-06 14:01:16,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:16,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524668289] [2022-04-06 14:01:16,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524668289] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:16,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:16,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:16,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183964562] [2022-04-06 14:01:16,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:16,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:16,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:16,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:16,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:16,826 INFO L87 Difference]: Start difference. First operand 4424 states and 6116 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:19,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:21,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:22,343 INFO L93 Difference]: Finished difference Result 8926 states and 12329 transitions. [2022-04-06 14:01:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:22,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 287 [2022-04-06 14:01:22,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:22,364 INFO L225 Difference]: With dead ends: 8926 [2022-04-06 14:01:22,364 INFO L226 Difference]: Without dead ends: 4530 [2022-04-06 14:01:22,368 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:22,368 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 29 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:22,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 584 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 14:01:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4530 states. [2022-04-06 14:01:22,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4530 to 4424. [2022-04-06 14:01:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.3815342837746096) internal successors, (6105), 4419 states have internal predecessors, (6105), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6109 transitions. [2022-04-06 14:01:22,457 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6109 transitions. Word has length 287 [2022-04-06 14:01:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:22,458 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6109 transitions. [2022-04-06 14:01:22,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6109 transitions. [2022-04-06 14:01:22,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-04-06 14:01:22,463 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:22,463 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] [2022-04-06 14:01:22,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-06 14:01:22,463 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:22,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:22,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1220275380, now seen corresponding path program 1 times [2022-04-06 14:01:22,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:22,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699364286] [2022-04-06 14:01:22,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:22,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-04-06 14:01:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:22,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699364286] [2022-04-06 14:01:22,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699364286] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:01:22,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061259616] [2022-04-06 14:01:22,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:22,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:01:22,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:01:22,622 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) [2022-04-06 14:01:22,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 14:01:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:23,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 18 conjunts are in the unsatisfiable core [2022-04-06 14:01:23,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:01:23,669 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:01:23,669 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 [2022-04-06 14:01:23,710 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:01:23,710 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 [2022-04-06 14:01:23,867 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 [2022-04-06 14:01:23,885 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:01:23,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 14:01:23,958 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 [2022-04-06 14:01:24,056 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 477 proven. 64 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-04-06 14:01:24,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:01:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-06 14:01:24,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061259616] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 14:01:24,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 14:01:24,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-04-06 14:01:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784149579] [2022-04-06 14:01:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:24,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:01:24,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:01:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 14:01:24,371 INFO L87 Difference]: Start difference. First operand 4424 states and 6109 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2022-04-06 14:01:25,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:26,324 INFO L93 Difference]: Finished difference Result 9269 states and 12790 transitions. [2022-04-06 14:01:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:01:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 295 [2022-04-06 14:01:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:26,329 INFO L225 Difference]: With dead ends: 9269 [2022-04-06 14:01:26,329 INFO L226 Difference]: Without dead ends: 4873 [2022-04-06 14:01:26,332 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 14:01:26,333 INFO L913 BasicCegarLoop]: 163 mSDtfsCounter, 103 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:26,333 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 431 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-06 14:01:26,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2022-04-06 14:01:26,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4430. [2022-04-06 14:01:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4430 states, 4425 states have (on average 1.3778531073446327) internal successors, (6097), 4425 states have internal predecessors, (6097), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:26,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 6101 transitions. [2022-04-06 14:01:26,402 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 6101 transitions. Word has length 295 [2022-04-06 14:01:26,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:26,403 INFO L478 AbstractCegarLoop]: Abstraction has 4430 states and 6101 transitions. [2022-04-06 14:01:26,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2022-04-06 14:01:26,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 6101 transitions. [2022-04-06 14:01:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-04-06 14:01:26,407 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:26,407 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] [2022-04-06 14:01:26,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-06 14:01:26,619 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,SelfDestructingSolverStorable55 [2022-04-06 14:01:26,620 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:26,620 INFO L85 PathProgramCache]: Analyzing trace with hash -746756437, now seen corresponding path program 1 times [2022-04-06 14:01:26,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:26,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740717991] [2022-04-06 14:01:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:26,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:26,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-04-06 14:01:26,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:26,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740717991] [2022-04-06 14:01:26,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740717991] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:26,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:26,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-06 14:01:26,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354525000] [2022-04-06 14:01:26,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:26,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-06 14:01:26,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:26,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-06 14:01:26,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-06 14:01:26,911 INFO L87 Difference]: Start difference. First operand 4430 states and 6101 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:28,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:30,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:30,132 INFO L93 Difference]: Finished difference Result 12719 states and 17556 transitions. [2022-04-06 14:01:30,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-06 14:01:30,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 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 295 [2022-04-06 14:01:30,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:30,140 INFO L225 Difference]: With dead ends: 12719 [2022-04-06 14:01:30,141 INFO L226 Difference]: Without dead ends: 8317 [2022-04-06 14:01:30,145 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-06 14:01:30,145 INFO L913 BasicCegarLoop]: 320 mSDtfsCounter, 413 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 102 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:30,145 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1118 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1201 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-04-06 14:01:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2022-04-06 14:01:30,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 8041. [2022-04-06 14:01:30,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8041 states, 8036 states have (on average 1.3885017421602788) internal successors, (11158), 8036 states have internal predecessors, (11158), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8041 states to 8041 states and 11162 transitions. [2022-04-06 14:01:30,318 INFO L78 Accepts]: Start accepts. Automaton has 8041 states and 11162 transitions. Word has length 295 [2022-04-06 14:01:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:30,318 INFO L478 AbstractCegarLoop]: Abstraction has 8041 states and 11162 transitions. [2022-04-06 14:01:30,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8041 states and 11162 transitions. [2022-04-06 14:01:30,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-04-06 14:01:30,326 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:30,326 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, 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] [2022-04-06 14:01:30,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-06 14:01:30,326 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:30,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1814109237, now seen corresponding path program 1 times [2022-04-06 14:01:30,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:30,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222387894] [2022-04-06 14:01:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:30,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-06 14:01:30,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:30,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222387894] [2022-04-06 14:01:30,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222387894] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:30,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:30,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:30,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409403333] [2022-04-06 14:01:30,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:30,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:30,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:30,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:30,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:30,464 INFO L87 Difference]: Start difference. First operand 8041 states and 11162 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) [2022-04-06 14:01:33,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:35,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:36,825 INFO L93 Difference]: Finished difference Result 16210 states and 22480 transitions. [2022-04-06 14:01:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:36,825 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 296 [2022-04-06 14:01:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:36,833 INFO L225 Difference]: With dead ends: 16210 [2022-04-06 14:01:36,833 INFO L226 Difference]: Without dead ends: 8141 [2022-04-06 14:01:36,840 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:36,840 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 26 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:36,841 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 585 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 14:01:36,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-04-06 14:01:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7985. [2022-04-06 14:01:36,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3894736842105264) internal successors, (11088), 7980 states have internal predecessors, (11088), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11092 transitions. [2022-04-06 14:01:36,987 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11092 transitions. Word has length 296 [2022-04-06 14:01:36,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:36,987 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11092 transitions. [2022-04-06 14:01:36,987 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) [2022-04-06 14:01:36,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11092 transitions. [2022-04-06 14:01:36,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-04-06 14:01:36,995 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:36,995 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:36,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-06 14:01:36,995 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:36,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:36,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1877890307, now seen corresponding path program 1 times [2022-04-06 14:01:36,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:36,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202323971] [2022-04-06 14:01:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:36,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:37,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-04-06 14:01:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:37,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202323971] [2022-04-06 14:01:37,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202323971] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:37,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:37,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:37,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869325519] [2022-04-06 14:01:37,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:37,133 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:37,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:37,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:37,133 INFO L87 Difference]: Start difference. First operand 7985 states and 11092 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:39,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:41,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:41,860 INFO L93 Difference]: Finished difference Result 16098 states and 22340 transitions. [2022-04-06 14:01:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:41,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-04-06 14:01:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:41,869 INFO L225 Difference]: With dead ends: 16098 [2022-04-06 14:01:41,869 INFO L226 Difference]: Without dead ends: 8141 [2022-04-06 14:01:41,889 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:41,889 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 25 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:41,889 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 583 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 14:01:41,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-04-06 14:01:42,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7985. [2022-04-06 14:01:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3877192982456141) internal successors, (11074), 7980 states have internal predecessors, (11074), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11078 transitions. [2022-04-06 14:01:42,036 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11078 transitions. Word has length 296 [2022-04-06 14:01:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:42,038 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11078 transitions. [2022-04-06 14:01:42,038 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11078 transitions. [2022-04-06 14:01:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-04-06 14:01:42,071 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:42,071 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:42,071 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-06 14:01:42,071 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1068402850, now seen corresponding path program 1 times [2022-04-06 14:01:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211075796] [2022-04-06 14:01:42,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:42,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-04-06 14:01:42,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:42,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211075796] [2022-04-06 14:01:42,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211075796] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:42,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:42,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:42,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022161946] [2022-04-06 14:01:42,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:42,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:42,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:42,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:42,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:42,279 INFO L87 Difference]: Start difference. First operand 7985 states and 11078 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:43,999 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 [] [2022-04-06 14:01:46,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:48,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:48,826 INFO L93 Difference]: Finished difference Result 16105 states and 22319 transitions. [2022-04-06 14:01:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:48,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-04-06 14:01:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:48,836 INFO L225 Difference]: With dead ends: 16105 [2022-04-06 14:01:48,836 INFO L226 Difference]: Without dead ends: 8148 [2022-04-06 14:01:48,844 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:48,844 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 33 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:48,845 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 14:01:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-04-06 14:01:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 7985. [2022-04-06 14:01:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3859649122807018) internal successors, (11060), 7980 states have internal predecessors, (11060), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11064 transitions. [2022-04-06 14:01:49,016 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11064 transitions. Word has length 296 [2022-04-06 14:01:49,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:49,016 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11064 transitions. [2022-04-06 14:01:49,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11064 transitions. [2022-04-06 14:01:49,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-06 14:01:49,024 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:49,025 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:49,025 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-06 14:01:49,025 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:49,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:49,025 INFO L85 PathProgramCache]: Analyzing trace with hash -481303524, now seen corresponding path program 1 times [2022-04-06 14:01:49,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:49,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86910587] [2022-04-06 14:01:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:49,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-04-06 14:01:49,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:49,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86910587] [2022-04-06 14:01:49,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86910587] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:49,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:49,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:49,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599392216] [2022-04-06 14:01:49,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:49,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:49,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:49,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:49,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:49,157 INFO L87 Difference]: Start difference. First operand 7985 states and 11064 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:52,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:53,329 INFO L93 Difference]: Finished difference Result 16042 states and 22214 transitions. [2022-04-06 14:01:53,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:53,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 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 297 [2022-04-06 14:01:53,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:53,337 INFO L225 Difference]: With dead ends: 16042 [2022-04-06 14:01:53,337 INFO L226 Difference]: Without dead ends: 7931 [2022-04-06 14:01:53,343 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:53,344 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:53,344 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 575 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 14:01:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2022-04-06 14:01:53,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7831. [2022-04-06 14:01:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7831 states, 7826 states have (on average 1.3917710196779964) internal successors, (10892), 7826 states have internal predecessors, (10892), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7831 states to 7831 states and 10896 transitions. [2022-04-06 14:01:53,486 INFO L78 Accepts]: Start accepts. Automaton has 7831 states and 10896 transitions. Word has length 297 [2022-04-06 14:01:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:53,486 INFO L478 AbstractCegarLoop]: Abstraction has 7831 states and 10896 transitions. [2022-04-06 14:01:53,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7831 states and 10896 transitions. [2022-04-06 14:01:53,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-06 14:01:53,494 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:53,494 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:53,494 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-06 14:01:53,494 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:53,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:53,494 INFO L85 PathProgramCache]: Analyzing trace with hash 194389085, now seen corresponding path program 1 times [2022-04-06 14:01:53,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:53,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15156478] [2022-04-06 14:01:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:53,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-04-06 14:01:53,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:53,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15156478] [2022-04-06 14:01:53,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15156478] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:53,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:53,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:53,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93267424] [2022-04-06 14:01:53,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:53,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:53,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:53,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:53,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:53,653 INFO L87 Difference]: Start difference. First operand 7831 states and 10896 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:54,854 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 [] [2022-04-06 14:01:56,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:58,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:00,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:01,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:01,534 INFO L93 Difference]: Finished difference Result 16471 states and 22878 transitions. [2022-04-06 14:02:01,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:01,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 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 297 [2022-04-06 14:02:01,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:01,544 INFO L225 Difference]: With dead ends: 16471 [2022-04-06 14:02:01,544 INFO L226 Difference]: Without dead ends: 8668 [2022-04-06 14:02:01,551 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:01,552 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 110 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:01,552 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 376 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-04-06 14:02:01,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2022-04-06 14:02:01,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 7754. [2022-04-06 14:02:01,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.385856239514776) internal successors, (10739), 7749 states have internal predecessors, (10739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 10743 transitions. [2022-04-06 14:02:01,767 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 10743 transitions. Word has length 297 [2022-04-06 14:02:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:01,767 INFO L478 AbstractCegarLoop]: Abstraction has 7754 states and 10743 transitions. [2022-04-06 14:02:01,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:01,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 10743 transitions. [2022-04-06 14:02:01,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-04-06 14:02:01,775 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:01,775 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:01,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-06 14:02:01,775 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:01,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1713213843, now seen corresponding path program 1 times [2022-04-06 14:02:01,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:01,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490698315] [2022-04-06 14:02:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:01,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:01,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-04-06 14:02:01,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:01,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490698315] [2022-04-06 14:02:01,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490698315] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:01,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:01,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:01,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264255914] [2022-04-06 14:02:01,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:01,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:01,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:01,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:01,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:01,918 INFO L87 Difference]: Start difference. First operand 7754 states and 10743 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:03,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:05,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:06,719 INFO L93 Difference]: Finished difference Result 15590 states and 21592 transitions. [2022-04-06 14:02:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:06,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 305 [2022-04-06 14:02:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:06,728 INFO L225 Difference]: With dead ends: 15590 [2022-04-06 14:02:06,728 INFO L226 Difference]: Without dead ends: 7864 [2022-04-06 14:02:06,732 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:06,732 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 47 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:06,732 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 566 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 14:02:06,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7864 states. [2022-04-06 14:02:06,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7864 to 7754. [2022-04-06 14:02:06,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.3850819460575559) internal successors, (10733), 7749 states have internal predecessors, (10733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 10737 transitions. [2022-04-06 14:02:06,878 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 10737 transitions. Word has length 305 [2022-04-06 14:02:06,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:06,878 INFO L478 AbstractCegarLoop]: Abstraction has 7754 states and 10737 transitions. [2022-04-06 14:02:06,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:06,878 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 10737 transitions. [2022-04-06 14:02:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-04-06 14:02:06,885 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:06,885 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:06,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-06 14:02:06,886 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash -738379758, now seen corresponding path program 1 times [2022-04-06 14:02:06,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:06,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433595668] [2022-04-06 14:02:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:06,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:07,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-04-06 14:02:07,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:07,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433595668] [2022-04-06 14:02:07,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433595668] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:07,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:07,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 14:02:07,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316238310] [2022-04-06 14:02:07,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:07,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 14:02:07,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:07,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 14:02:07,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:07,039 INFO L87 Difference]: Start difference. First operand 7754 states and 10737 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:08,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:10,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:12,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:13,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:15,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:16,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:16,396 INFO L93 Difference]: Finished difference Result 16560 states and 22878 transitions. [2022-04-06 14:02:16,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 14:02:16,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 307 [2022-04-06 14:02:16,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:16,406 INFO L225 Difference]: With dead ends: 16560 [2022-04-06 14:02:16,406 INFO L226 Difference]: Without dead ends: 8834 [2022-04-06 14:02:16,414 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-06 14:02:16,414 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 37 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:16,414 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 708 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 607 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2022-04-06 14:02:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8834 states. [2022-04-06 14:02:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8834 to 8231. [2022-04-06 14:02:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8231 states, 8226 states have (on average 1.3836615609044494) internal successors, (11382), 8226 states have internal predecessors, (11382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:16,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8231 states to 8231 states and 11386 transitions. [2022-04-06 14:02:16,579 INFO L78 Accepts]: Start accepts. Automaton has 8231 states and 11386 transitions. Word has length 307 [2022-04-06 14:02:16,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:16,580 INFO L478 AbstractCegarLoop]: Abstraction has 8231 states and 11386 transitions. [2022-04-06 14:02:16,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 8231 states and 11386 transitions. [2022-04-06 14:02:16,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-04-06 14:02:16,587 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:16,587 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:16,587 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-06 14:02:16,588 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:16,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:16,588 INFO L85 PathProgramCache]: Analyzing trace with hash -679159021, now seen corresponding path program 1 times [2022-04-06 14:02:16,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060716140] [2022-04-06 14:02:16,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:16,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-04-06 14:02:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:16,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060716140] [2022-04-06 14:02:16,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060716140] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:16,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:16,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:16,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239998941] [2022-04-06 14:02:16,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:16,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:16,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:16,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:16,762 INFO L87 Difference]: Start difference. First operand 8231 states and 11386 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:21,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:21,955 INFO L93 Difference]: Finished difference Result 16584 states and 22910 transitions. [2022-04-06 14:02:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:21,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 307 [2022-04-06 14:02:21,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:21,964 INFO L225 Difference]: With dead ends: 16584 [2022-04-06 14:02:21,964 INFO L226 Difference]: Without dead ends: 8381 [2022-04-06 14:02:21,971 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:21,972 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 39 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:21,972 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 532 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-06 14:02:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8381 states. [2022-04-06 14:02:22,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8381 to 8231. [2022-04-06 14:02:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8231 states, 8226 states have (on average 1.3812302455628496) internal successors, (11362), 8226 states have internal predecessors, (11362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8231 states to 8231 states and 11366 transitions. [2022-04-06 14:02:22,176 INFO L78 Accepts]: Start accepts. Automaton has 8231 states and 11366 transitions. Word has length 307 [2022-04-06 14:02:22,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:22,176 INFO L478 AbstractCegarLoop]: Abstraction has 8231 states and 11366 transitions. [2022-04-06 14:02:22,176 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8231 states and 11366 transitions. [2022-04-06 14:02:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-04-06 14:02:22,184 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:22,184 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:22,184 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-06 14:02:22,184 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash 459743299, now seen corresponding path program 1 times [2022-04-06 14:02:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:22,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119108863] [2022-04-06 14:02:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-04-06 14:02:22,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:22,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119108863] [2022-04-06 14:02:22,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119108863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:22,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:22,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:22,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305525489] [2022-04-06 14:02:22,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:22,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:22,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:22,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:22,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:22,339 INFO L87 Difference]: Start difference. First operand 8231 states and 11366 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:24,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:26,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:28,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:30,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:30,575 INFO L93 Difference]: Finished difference Result 16504 states and 22773 transitions. [2022-04-06 14:02:30,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:30,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 308 [2022-04-06 14:02:30,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:30,585 INFO L225 Difference]: With dead ends: 16504 [2022-04-06 14:02:30,585 INFO L226 Difference]: Without dead ends: 8301 [2022-04-06 14:02:30,594 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:30,594 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 33 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:30,594 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 527 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 428 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-04-06 14:02:30,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8301 states. [2022-04-06 14:02:30,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8301 to 8205. [2022-04-06 14:02:30,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8205 states, 8200 states have (on average 1.38) internal successors, (11316), 8200 states have internal predecessors, (11316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:30,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8205 states to 8205 states and 11320 transitions. [2022-04-06 14:02:30,789 INFO L78 Accepts]: Start accepts. Automaton has 8205 states and 11320 transitions. Word has length 308 [2022-04-06 14:02:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:30,789 INFO L478 AbstractCegarLoop]: Abstraction has 8205 states and 11320 transitions. [2022-04-06 14:02:30,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:30,790 INFO L276 IsEmpty]: Start isEmpty. Operand 8205 states and 11320 transitions. [2022-04-06 14:02:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-04-06 14:02:30,797 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:30,797 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:30,797 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-06 14:02:30,797 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:30,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:30,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1073414634, now seen corresponding path program 1 times [2022-04-06 14:02:30,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:30,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880264441] [2022-04-06 14:02:30,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:30,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-06 14:02:30,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:30,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880264441] [2022-04-06 14:02:30,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880264441] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:30,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:30,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:30,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643958836] [2022-04-06 14:02:30,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:30,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:30,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:30,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:30,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:30,934 INFO L87 Difference]: Start difference. First operand 8205 states and 11320 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:33,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:35,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:36,198 INFO L93 Difference]: Finished difference Result 16525 states and 22771 transitions. [2022-04-06 14:02:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:36,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 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 317 [2022-04-06 14:02:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:36,260 INFO L225 Difference]: With dead ends: 16525 [2022-04-06 14:02:36,260 INFO L226 Difference]: Without dead ends: 8348 [2022-04-06 14:02:36,263 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:36,264 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 20 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:36,264 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 573 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 14:02:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8348 states. [2022-04-06 14:02:36,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8348 to 8205. [2022-04-06 14:02:36,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8205 states, 8200 states have (on average 1.377560975609756) internal successors, (11296), 8200 states have internal predecessors, (11296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8205 states to 8205 states and 11300 transitions. [2022-04-06 14:02:36,416 INFO L78 Accepts]: Start accepts. Automaton has 8205 states and 11300 transitions. Word has length 317 [2022-04-06 14:02:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:36,416 INFO L478 AbstractCegarLoop]: Abstraction has 8205 states and 11300 transitions. [2022-04-06 14:02:36,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8205 states and 11300 transitions. [2022-04-06 14:02:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-04-06 14:02:36,424 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:36,424 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 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, 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] [2022-04-06 14:02:36,424 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-06 14:02:36,424 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash -531049626, now seen corresponding path program 1 times [2022-04-06 14:02:36,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650061051] [2022-04-06 14:02:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:36,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-06 14:02:36,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:36,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650061051] [2022-04-06 14:02:36,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650061051] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:36,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:36,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:36,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183224221] [2022-04-06 14:02:36,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:36,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:36,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:36,549 INFO L87 Difference]: Start difference. First operand 8205 states and 11300 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:37,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:39,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:41,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:43,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:44,190 INFO L93 Difference]: Finished difference Result 16445 states and 22634 transitions. [2022-04-06 14:02:44,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:44,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 318 [2022-04-06 14:02:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:44,199 INFO L225 Difference]: With dead ends: 16445 [2022-04-06 14:02:44,199 INFO L226 Difference]: Without dead ends: 8228 [2022-04-06 14:02:44,206 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:44,206 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 15 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:44,206 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 565 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 390 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-06 14:02:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8228 states. [2022-04-06 14:02:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8228 to 7871. [2022-04-06 14:02:44,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7871 states, 7866 states have (on average 1.3785914060513602) internal successors, (10844), 7866 states have internal predecessors, (10844), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7871 states to 7871 states and 10848 transitions. [2022-04-06 14:02:44,362 INFO L78 Accepts]: Start accepts. Automaton has 7871 states and 10848 transitions. Word has length 318 [2022-04-06 14:02:44,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:44,362 INFO L478 AbstractCegarLoop]: Abstraction has 7871 states and 10848 transitions. [2022-04-06 14:02:44,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:44,363 INFO L276 IsEmpty]: Start isEmpty. Operand 7871 states and 10848 transitions. [2022-04-06 14:02:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-04-06 14:02:44,369 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:44,395 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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] [2022-04-06 14:02:44,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-04-06 14:02:44,395 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:44,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:44,396 INFO L85 PathProgramCache]: Analyzing trace with hash -176490362, now seen corresponding path program 1 times [2022-04-06 14:02:44,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:44,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599616601] [2022-04-06 14:02:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:44,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:45,092 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 487 proven. 289 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-04-06 14:02:45,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599616601] [2022-04-06 14:02:45,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599616601] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:02:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638817451] [2022-04-06 14:02:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:45,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:02:45,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:02:45,093 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) [2022-04-06 14:02:45,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-06 14:02:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:46,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 27 conjunts are in the unsatisfiable core [2022-04-06 14:02:46,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:02:46,305 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:02:46,305 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 [2022-04-06 14:02:46,356 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:02:46,356 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 [2022-04-06 14:02:46,462 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 [2022-04-06 14:02:46,470 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 [2022-04-06 14:02:46,472 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 [2022-04-06 14:02:46,485 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-06 14:02:46,485 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 [2022-04-06 14:02:46,573 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-04-06 14:02:46,573 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 [2022-04-06 14:02:46,671 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:02:46,671 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 23 [2022-04-06 14:02:48,806 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:02:48,806 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 [2022-04-06 14:02:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 648 proven. 68 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-04-06 14:02:48,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:02:49,357 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 [2022-04-06 14:02:49,361 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 [2022-04-06 14:02:52,899 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 [2022-04-06 14:02:52,911 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 [2022-04-06 14:02:52,913 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 [2022-04-06 14:02:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 671 proven. 27 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-04-06 14:02:53,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638817451] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:02:53,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:02:53,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 7] total 24 [2022-04-06 14:02:53,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453354216] [2022-04-06 14:02:53,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 14:02:53,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-04-06 14:02:53,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:53,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-04-06 14:02:53,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=463, Unknown=2, NotChecked=0, Total=552 [2022-04-06 14:02:53,014 INFO L87 Difference]: Start difference. First operand 7871 states and 10848 transitions. Second operand has 24 states, 24 states have (on average 16.291666666666668) internal successors, (391), 23 states have internal predecessors, (391), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:56,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:58,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:00,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:02,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:04,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:06,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:08,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:10,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:39,464 INFO L93 Difference]: Finished difference Result 65400 states and 90139 transitions. [2022-04-06 14:03:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-04-06 14:03:39,464 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 16.291666666666668) internal successors, (391), 23 states have internal predecessors, (391), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2022-04-06 14:03:39,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:39,541 INFO L225 Difference]: With dead ends: 65400 [2022-04-06 14:03:39,541 INFO L226 Difference]: Without dead ends: 57557 [2022-04-06 14:03:39,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2702 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=1452, Invalid=7659, Unknown=9, NotChecked=0, Total=9120 [2022-04-06 14:03:39,553 INFO L913 BasicCegarLoop]: 840 mSDtfsCounter, 2762 mSDsluCounter, 9503 mSDsCounter, 0 mSdLazyCounter, 9943 mSolverCounterSat, 669 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 10343 SdHoareTripleChecker+Invalid, 11639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 9943 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 1022 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:39,553 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2762 Valid, 10343 Invalid, 11639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [669 Valid, 9943 Invalid, 5 Unknown, 1022 Unchecked, 26.4s Time] [2022-04-06 14:03:39,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57557 states. [2022-04-06 14:03:40,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57557 to 37981. [2022-04-06 14:03:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37981 states, 37976 states have (on average 1.394907309879924) internal successors, (52973), 37976 states have internal predecessors, (52973), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37981 states to 37981 states and 52977 transitions. [2022-04-06 14:03:40,776 INFO L78 Accepts]: Start accepts. Automaton has 37981 states and 52977 transitions. Word has length 324 [2022-04-06 14:03:40,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:40,777 INFO L478 AbstractCegarLoop]: Abstraction has 37981 states and 52977 transitions. [2022-04-06 14:03:40,777 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 16.291666666666668) internal successors, (391), 23 states have internal predecessors, (391), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 37981 states and 52977 transitions. [2022-04-06 14:03:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-04-06 14:03:40,807 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:40,807 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:40,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-06 14:03:41,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:03:41,031 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:41,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash 67046501, now seen corresponding path program 1 times [2022-04-06 14:03:41,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:41,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722462206] [2022-04-06 14:03:41,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:42,394 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 198 proven. 696 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 14:03:42,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:42,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722462206] [2022-04-06 14:03:42,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722462206] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:03:42,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044243289] [2022-04-06 14:03:42,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:42,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:03:42,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:03:42,395 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) [2022-04-06 14:03:42,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-06 14:03:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:43,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 101 conjunts are in the unsatisfiable core [2022-04-06 14:03:43,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:03:43,721 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:03:43,721 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 [2022-04-06 14:03:43,863 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-04-06 14:03:43,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 38 [2022-04-06 14:03:43,908 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-04-06 14:03:43,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 26 [2022-04-06 14:03:43,988 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 [2022-04-06 14:03:43,990 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 [2022-04-06 14:03:44,003 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-06 14:03:44,003 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 [2022-04-06 14:03:44,019 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:03:44,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 14:03:44,057 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 [2022-04-06 14:03:44,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:44,124 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 [2022-04-06 14:03:44,151 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 14:03:44,151 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 [2022-04-06 14:03:44,159 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:03:44,160 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 73 treesize of output 66 [2022-04-06 14:03:44,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:44,730 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 [2022-04-06 14:03:44,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:44,733 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 [2022-04-06 14:03:44,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:44,745 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 14:03:44,745 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 [2022-04-06 14:03:44,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:44,833 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 58 treesize of output 51 [2022-04-06 14:03:44,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:44,837 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 58 treesize of output 51 [2022-04-06 14:03:44,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:44,853 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 14:03:44,853 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 [2022-04-06 14:03:45,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:45,511 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 14:03:45,511 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 [2022-04-06 14:03:45,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:45,549 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 14:03:45,549 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 [2022-04-06 14:03:45,593 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-04-06 14:03:45,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-04-06 14:03:46,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 266 [2022-04-06 14:03:46,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:46,344 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-04-06 14:03:46,344 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 326 treesize of output 363 [2022-04-06 14:03:46,365 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-04-06 14:03:46,366 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 4 case distinctions, treesize of input 372 treesize of output 300 [2022-04-06 14:03:50,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,060 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 321 treesize of output 257 [2022-04-06 14:03:50,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,067 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 321 treesize of output 257 [2022-04-06 14:03:50,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,089 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 14:03:50,090 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 321 treesize of output 333 [2022-04-06 14:03:50,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,425 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 198 treesize of output 144 [2022-04-06 14:03:50,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:50,428 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 144 treesize of output 84 [2022-04-06 14:03:50,449 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-04-06 14:03:50,449 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 103 treesize of output 110 [2022-04-06 14:03:50,520 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 14:03:50,520 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 [2022-04-06 14:03:50,613 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 14:03:50,613 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 [2022-04-06 14:03:50,638 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 358 proven. 499 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-04-06 14:03:50,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:03:53,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:53,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:53,356 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 [2022-04-06 14:03:53,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:53,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:53,360 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 [2022-04-06 14:03:55,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:55,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 14:03:55,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:03:55,456 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-04-06 14:03:55,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 68 treesize of output 1 [2022-04-06 14:03:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 14:03:55,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044243289] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:03:55,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:03:55,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 14] total 52 [2022-04-06 14:03:55,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041536821] [2022-04-06 14:03:55,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 14:03:55,589 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-04-06 14:03:55,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:55,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-04-06 14:03:55,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2321, Unknown=0, NotChecked=0, Total=2652 [2022-04-06 14:03:55,590 INFO L87 Difference]: Start difference. First operand 37981 states and 52977 transitions. Second operand has 52 states, 52 states have (on average 12.5) internal successors, (650), 51 states have internal predecessors, (650), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:57,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:22,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:05:22,463 INFO L93 Difference]: Finished difference Result 330274 states and 450510 transitions. [2022-04-06 14:05:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 517 states. [2022-04-06 14:05:22,463 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 12.5) internal successors, (650), 51 states have internal predecessors, (650), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2022-04-06 14:05:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:05:23,198 INFO L225 Difference]: With dead ends: 330274 [2022-04-06 14:05:23,199 INFO L226 Difference]: Without dead ends: 292321 [2022-04-06 14:05:23,287 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1495 GetRequests, 928 SyntacticMatches, 16 SemanticMatches, 551 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136173 ImplicationChecksByTransitivity, 38.9s TimeCoverageRelationStatistics Valid=27500, Invalid=277756, Unknown=0, NotChecked=0, Total=305256 [2022-04-06 14:05:23,287 INFO L913 BasicCegarLoop]: 1588 mSDtfsCounter, 7508 mSDsluCounter, 32135 mSDsCounter, 0 mSdLazyCounter, 36328 mSolverCounterSat, 1686 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7508 SdHoareTripleChecker+Valid, 33723 SdHoareTripleChecker+Invalid, 49161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1686 IncrementalHoareTripleChecker+Valid, 36328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 11146 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:05:23,287 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7508 Valid, 33723 Invalid, 49161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1686 Valid, 36328 Invalid, 1 Unknown, 11146 Unchecked, 36.1s Time] [2022-04-06 14:05:23,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292321 states. [2022-04-06 14:05:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292321 to 145672. [2022-04-06 14:05:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145672 states, 145667 states have (on average 1.4000082379674188) internal successors, (203935), 145667 states have internal predecessors, (203935), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145672 states to 145672 states and 203939 transitions. [2022-04-06 14:05:29,491 INFO L78 Accepts]: Start accepts. Automaton has 145672 states and 203939 transitions. Word has length 324 [2022-04-06 14:05:29,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:05:29,491 INFO L478 AbstractCegarLoop]: Abstraction has 145672 states and 203939 transitions. [2022-04-06 14:05:29,492 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 12.5) internal successors, (650), 51 states have internal predecessors, (650), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 145672 states and 203939 transitions. [2022-04-06 14:05:29,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-04-06 14:05:29,557 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:05:29,558 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:05:29,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-06 14:05:29,774 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:05:29,775 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:05:29,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:05:29,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1938042449, now seen corresponding path program 1 times [2022-04-06 14:05:29,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:05:29,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060329013] [2022-04-06 14:05:29,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:05:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:05:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:05:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-04-06 14:05:30,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:05:30,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060329013] [2022-04-06 14:05:30,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060329013] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:05:30,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:05:30,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:05:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693964264] [2022-04-06 14:05:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:05:30,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:05:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:05:30,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:05:30,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:05:30,225 INFO L87 Difference]: Start difference. First operand 145672 states and 203939 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:32,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:34,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:36,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:05:42,491 INFO L93 Difference]: Finished difference Result 299320 states and 418195 transitions. [2022-04-06 14:05:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:05:42,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2022-04-06 14:05:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:05:42,719 INFO L225 Difference]: With dead ends: 299320 [2022-04-06 14:05:42,719 INFO L226 Difference]: Without dead ends: 153676 [2022-04-06 14:05:42,913 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:05:42,914 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 116 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:05:42,914 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 413 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 14:05:43,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153676 states. [2022-04-06 14:05:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153676 to 145672. [2022-04-06 14:05:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145672 states, 145667 states have (on average 1.3760357527785978) internal successors, (200443), 145667 states have internal predecessors, (200443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:49,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145672 states to 145672 states and 200447 transitions. [2022-04-06 14:05:49,050 INFO L78 Accepts]: Start accepts. Automaton has 145672 states and 200447 transitions. Word has length 324 [2022-04-06 14:05:49,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:05:49,050 INFO L478 AbstractCegarLoop]: Abstraction has 145672 states and 200447 transitions. [2022-04-06 14:05:49,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 145672 states and 200447 transitions. [2022-04-06 14:05:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-04-06 14:05:49,117 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:05:49,118 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:05:49,118 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-04-06 14:05:49,118 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:05:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:05:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1093355143, now seen corresponding path program 1 times [2022-04-06 14:05:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:05:49,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619994446] [2022-04-06 14:05:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:05:49,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:05:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:05:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:05:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-04-06 14:05:49,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:05:49,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619994446] [2022-04-06 14:05:49,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619994446] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:05:49,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:05:49,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:05:49,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961766203] [2022-04-06 14:05:49,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:05:49,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:05:49,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:05:49,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:05:49,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:05:49,272 INFO L87 Difference]: Start difference. First operand 145672 states and 200447 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:05:51,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:05:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:05:57,655 INFO L93 Difference]: Finished difference Result 299320 states and 411211 transitions. [2022-04-06 14:05:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:05:57,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 325 [2022-04-06 14:05:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:05:57,895 INFO L225 Difference]: With dead ends: 299320 [2022-04-06 14:05:57,895 INFO L226 Difference]: Without dead ends: 153676 [2022-04-06 14:05:58,086 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:05:58,086 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 123 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:05:58,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 376 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:05:58,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153676 states. [2022-04-06 14:06:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153676 to 145672. [2022-04-06 14:06:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145672 states, 145667 states have (on average 1.3520632675897766) internal successors, (196951), 145667 states have internal predecessors, (196951), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145672 states to 145672 states and 196955 transitions. [2022-04-06 14:06:03,928 INFO L78 Accepts]: Start accepts. Automaton has 145672 states and 196955 transitions. Word has length 325 [2022-04-06 14:06:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:06:03,928 INFO L478 AbstractCegarLoop]: Abstraction has 145672 states and 196955 transitions. [2022-04-06 14:06:03,928 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 145672 states and 196955 transitions. [2022-04-06 14:06:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-04-06 14:06:03,989 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:06:03,989 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:06:03,989 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-04-06 14:06:03,989 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:06:03,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:06:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash -476660746, now seen corresponding path program 1 times [2022-04-06 14:06:03,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:06:03,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781616334] [2022-04-06 14:06:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:03,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:06:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:04,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:06:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-04-06 14:06:04,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:06:04,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781616334] [2022-04-06 14:06:04,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781616334] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:06:04,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:06:04,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:06:04,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090310359] [2022-04-06 14:06:04,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:06:04,125 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:06:04,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:06:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:06:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:06:04,125 INFO L87 Difference]: Start difference. First operand 145672 states and 196955 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:05,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:06,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:08,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:11,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:06:16,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:06:16,659 INFO L93 Difference]: Finished difference Result 288878 states and 390928 transitions. [2022-04-06 14:06:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:06:16,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-04-06 14:06:16,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:06:16,864 INFO L225 Difference]: With dead ends: 288878 [2022-04-06 14:06:16,864 INFO L226 Difference]: Without dead ends: 139700 [2022-04-06 14:06:16,956 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:06:16,956 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 122 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:06:16,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 380 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 468 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-04-06 14:06:17,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139700 states. [2022-04-06 14:06:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139700 to 112584. [2022-04-06 14:06:21,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112584 states, 112579 states have (on average 1.3413158759626573) internal successors, (151004), 112579 states have internal predecessors, (151004), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:21,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112584 states to 112584 states and 151008 transitions. [2022-04-06 14:06:21,206 INFO L78 Accepts]: Start accepts. Automaton has 112584 states and 151008 transitions. Word has length 326 [2022-04-06 14:06:21,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:06:21,206 INFO L478 AbstractCegarLoop]: Abstraction has 112584 states and 151008 transitions. [2022-04-06 14:06:21,206 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 112584 states and 151008 transitions. [2022-04-06 14:06:21,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-06 14:06:21,252 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:06:21,253 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1] [2022-04-06 14:06:21,253 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-04-06 14:06:21,253 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:06:21,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:06:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash 143174106, now seen corresponding path program 1 times [2022-04-06 14:06:21,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:06:21,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769883229] [2022-04-06 14:06:21,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:21,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:06:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:22,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:06:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 487 proven. 289 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-04-06 14:06:22,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:06:22,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769883229] [2022-04-06 14:06:22,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769883229] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:06:22,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422274707] [2022-04-06 14:06:22,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:06:22,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:06:22,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:06:22,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:06:22,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-06 14:06:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:06:23,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 31 conjunts are in the unsatisfiable core [2022-04-06 14:06:23,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:06:23,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:06:23,700 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 36 treesize of output 35 [2022-04-06 14:06:23,718 INFO L356 Elim1Store]: treesize reduction 49, result has 46.7 percent of original size [2022-04-06 14:06:23,718 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 36 treesize of output 57 [2022-04-06 14:06:23,726 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 14:06:23,727 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 57 treesize of output 50 [2022-04-06 14:06:23,762 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 66 treesize of output 48 [2022-04-06 14:06:23,764 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 48 treesize of output 30 [2022-04-06 14:06:23,821 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 0 case distinctions, treesize of input 29 treesize of output 13 [2022-04-06 14:06:23,875 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 [2022-04-06 14:06:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 667 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-04-06 14:06:24,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:06:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 667 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-04-06 14:06:24,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422274707] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:06:24,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:06:24,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 8] total 25 [2022-04-06 14:06:24,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873492614] [2022-04-06 14:06:24,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 14:06:24,606 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-04-06 14:06:24,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:06:24,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-04-06 14:06:24,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2022-04-06 14:06:24,607 INFO L87 Difference]: Start difference. First operand 112584 states and 151008 transitions. Second operand has 25 states, 25 states have (on average 15.96) internal successors, (399), 24 states have internal predecessors, (399), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:06:26,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:07:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:07:06,222 INFO L93 Difference]: Finished difference Result 702897 states and 919949 transitions. [2022-04-06 14:07:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-04-06 14:07:06,222 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.96) internal successors, (399), 24 states have internal predecessors, (399), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 328 [2022-04-06 14:07:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:07:07,242 INFO L225 Difference]: With dead ends: 702897 [2022-04-06 14:07:07,242 INFO L226 Difference]: Without dead ends: 590188 [2022-04-06 14:07:07,363 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 693 SyntacticMatches, 1 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8802 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2703, Invalid=22103, Unknown=0, NotChecked=0, Total=24806 [2022-04-06 14:07:07,364 INFO L913 BasicCegarLoop]: 859 mSDtfsCounter, 3236 mSDsluCounter, 10554 mSDsCounter, 0 mSdLazyCounter, 12881 mSolverCounterSat, 923 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 11413 SdHoareTripleChecker+Invalid, 14458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 923 IncrementalHoareTripleChecker+Valid, 12881 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 653 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:07:07,364 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3236 Valid, 11413 Invalid, 14458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [923 Valid, 12881 Invalid, 1 Unknown, 653 Unchecked, 12.8s Time] [2022-04-06 14:07:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590188 states. [2022-04-06 14:07:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590188 to 395807. [2022-04-06 14:07:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395807 states, 395802 states have (on average 1.337375758586364) internal successors, (529336), 395802 states have internal predecessors, (529336), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:07:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395807 states to 395807 states and 529340 transitions. [2022-04-06 14:07:24,593 INFO L78 Accepts]: Start accepts. Automaton has 395807 states and 529340 transitions. Word has length 328 [2022-04-06 14:07:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:07:24,593 INFO L478 AbstractCegarLoop]: Abstraction has 395807 states and 529340 transitions. [2022-04-06 14:07:24,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.96) internal successors, (399), 24 states have internal predecessors, (399), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:07:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 395807 states and 529340 transitions. [2022-04-06 14:07:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-04-06 14:07:24,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:07:24,697 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:07:24,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-04-06 14:07:24,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-04-06 14:07:24,921 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:07:24,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:07:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash 525244343, now seen corresponding path program 1 times [2022-04-06 14:07:24,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:07:24,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873263554] [2022-04-06 14:07:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:07:24,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:07:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:07:25,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:07:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:07:25,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-04-06 14:07:25,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:07:25,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873263554] [2022-04-06 14:07:25,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873263554] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:07:25,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:07:25,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:07:25,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97995545] [2022-04-06 14:07:25,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:07:25,297 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:07:25,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:07:25,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:07:25,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:07:25,298 INFO L87 Difference]: Start difference. First operand 395807 states and 529340 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:07:26,713 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 [] [2022-04-06 14:07:28,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:07:30,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:07:32,303 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 []