/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 16:41:44,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 16:41:44,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 16:41:44,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 16:41:44,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 16:41:44,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 16:41:44,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 16:41:44,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 16:41:44,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 16:41:44,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 16:41:44,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 16:41:44,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 16:41:44,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 16:41:44,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 16:41:44,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 16:41:44,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 16:41:44,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 16:41:44,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 16:41:44,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 16:41:44,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 16:41:44,488 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 16:41:44,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 16:41:44,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 16:41:44,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 16:41:44,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 16:41:44,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 16:41:44,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 16:41:44,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 16:41:44,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 16:41:44,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 16:41:44,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 16:41:44,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 16:41:44,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 16:41:44,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 16:41:44,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 16:41:44,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 16:41:44,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 16:41:44,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 16:41:44,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 16:41:44,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 16:41:44,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 16:41:44,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 16:41:44,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-18 16:41:44,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 16:41:44,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 16:41:44,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 16:41:44,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 16:41:44,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 16:41:44,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 16:41:44,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 16:41:44,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 16:41:44,530 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 16:41:44,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 16:41:44,531 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 16:41:44,532 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 16:41:44,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 16:41:44,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 16:41:44,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 16:41:44,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 16:41:44,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:41:44,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 16:41:44,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 16:41:44,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 16:41:44,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 16:41:44,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 16:41:44,534 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 16:41:44,534 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 16:41:44,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 16:41:44,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 16:41:44,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 16:41:44,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 16:41:44,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 16:41:44,720 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 16:41:44,721 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 16:41:44,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-18 16:41:44,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab0f31294/1f288aea437c4bd8a4b5e3ed1c3d0f9a/FLAG113c4a311 [2022-03-18 16:41:45,187 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 16:41:45,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-18 16:41:45,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab0f31294/1f288aea437c4bd8a4b5e3ed1c3d0f9a/FLAG113c4a311 [2022-03-18 16:41:45,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab0f31294/1f288aea437c4bd8a4b5e3ed1c3d0f9a [2022-03-18 16:41:45,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 16:41:45,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 16:41:45,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 16:41:45,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 16:41:45,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 16:41:45,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:41:45" (1/1) ... [2022-03-18 16:41:45,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db4a8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:45, skipping insertion in model container [2022-03-18 16:41:45,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:41:45" (1/1) ... [2022-03-18 16:41:45,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 16:41:45,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 16:41:45,890 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.16.i.cil-2.c[77660,77673] [2022-03-18 16:41:45,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:41:45,908 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 16:41:46,059 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.16.i.cil-2.c[77660,77673] [2022-03-18 16:41:46,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:41:46,080 INFO L208 MainTranslator]: Completed translation [2022-03-18 16:41:46,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46 WrapperNode [2022-03-18 16:41:46,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 16:41:46,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 16:41:46,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 16:41:46,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 16:41:46,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 16:41:46,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 16:41:46,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 16:41:46,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 16:41:46,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (1/1) ... [2022-03-18 16:41:46,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:41:46,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:41:46,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 16:41:46,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 16:41:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 16:41:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 16:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 16:41:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 16:41:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 16:41:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 16:41:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 16:41:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 16:41:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 16:41:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 16:41:46,435 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 16:41:46,436 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 16:41:47,081 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 16:41:47,448 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 16:41:47,448 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 16:41:47,460 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 16:41:47,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 16:41:47,471 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 16:41:47,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:41:47 BoogieIcfgContainer [2022-03-18 16:41:47,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 16:41:47,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 16:41:47,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 16:41:47,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 16:41:47,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 04:41:45" (1/3) ... [2022-03-18 16:41:47,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fcb292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:41:47, skipping insertion in model container [2022-03-18 16:41:47,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:41:46" (2/3) ... [2022-03-18 16:41:47,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fcb292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:41:47, skipping insertion in model container [2022-03-18 16:41:47,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:41:47" (3/3) ... [2022-03-18 16:41:47,481 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.c [2022-03-18 16:41:47,488 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 16:41:47,488 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 16:41:47,524 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 16:41:47,529 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 16:41:47,529 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 16:41:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 16:41:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-18 16:41:47,554 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:41:47,555 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:41:47,555 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:41:47,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:41:47,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2779566, now seen corresponding path program 1 times [2022-03-18 16:41:47,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:41:47,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512431031] [2022-03-18 16:41:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:41:47,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:41:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:48,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:41:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:48,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:41:48,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:41:48,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512431031] [2022-03-18 16:41:48,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512431031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:41:48,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:41:48,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:41:48,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603343882] [2022-03-18 16:41:48,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:41:48,049 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:41:48,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:41:48,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:41:48,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:41:48,072 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:41:50,633 INFO L93 Difference]: Finished difference Result 456 states and 778 transitions. [2022-03-18 16:41:50,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:41:50,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-18 16:41:50,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:41:50,647 INFO L225 Difference]: With dead ends: 456 [2022-03-18 16:41:50,647 INFO L226 Difference]: Without dead ends: 278 [2022-03-18 16:41:50,653 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:41:50,657 INFO L912 BasicCegarLoop]: 176 mSDtfsCounter, 170 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:41:50,661 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 517 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:41:50,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-18 16:41:50,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 191. [2022-03-18 16:41:50,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.6236559139784945) internal successors, (302), 186 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:50,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 306 transitions. [2022-03-18 16:41:50,723 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 306 transitions. Word has length 51 [2022-03-18 16:41:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:41:50,724 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 306 transitions. [2022-03-18 16:41:50,724 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 306 transitions. [2022-03-18 16:41:50,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-18 16:41:50,732 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:41:50,733 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:41:50,733 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 16:41:50,733 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:41:50,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:41:50,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1115524430, now seen corresponding path program 1 times [2022-03-18 16:41:50,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:41:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705587288] [2022-03-18 16:41:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:41:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:41:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:50,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:41:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:41:50,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:41:50,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705587288] [2022-03-18 16:41:50,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705587288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:41:51,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:41:51,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:41:51,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794082711] [2022-03-18 16:41:51,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:41:51,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:41:51,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:41:51,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:41:51,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:41:51,010 INFO L87 Difference]: Start difference. First operand 191 states and 306 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:41:53,341 INFO L93 Difference]: Finished difference Result 395 states and 634 transitions. [2022-03-18 16:41:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:41:53,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-18 16:41:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:41:53,343 INFO L225 Difference]: With dead ends: 395 [2022-03-18 16:41:53,343 INFO L226 Difference]: Without dead ends: 219 [2022-03-18 16:41:53,344 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:41:53,345 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 22 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:41:53,346 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 535 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:41:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-18 16:41:53,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2022-03-18 16:41:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.6294416243654823) internal successors, (321), 197 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 325 transitions. [2022-03-18 16:41:53,356 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 325 transitions. Word has length 52 [2022-03-18 16:41:53,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:41:53,356 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 325 transitions. [2022-03-18 16:41:53,356 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:53,356 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 325 transitions. [2022-03-18 16:41:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 16:41:53,358 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:41:53,358 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:41:53,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 16:41:53,358 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:41:53,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:41:53,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1097885013, now seen corresponding path program 1 times [2022-03-18 16:41:53,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:41:53,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720585023] [2022-03-18 16:41:53,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:41:53,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:41:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:53,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:41:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:41:53,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:41:53,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720585023] [2022-03-18 16:41:53,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720585023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:41:53,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:41:53,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:41:53,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101671278] [2022-03-18 16:41:53,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:41:53,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:41:53,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:41:53,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:41:53,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:41:53,503 INFO L87 Difference]: Start difference. First operand 202 states and 325 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:56,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:41:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:41:57,348 INFO L93 Difference]: Finished difference Result 395 states and 633 transitions. [2022-03-18 16:41:57,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:41:57,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-18 16:41:57,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:41:57,350 INFO L225 Difference]: With dead ends: 395 [2022-03-18 16:41:57,350 INFO L226 Difference]: Without dead ends: 219 [2022-03-18 16:41:57,351 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:41:57,352 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 24 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:41:57,352 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 537 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 16:41:57,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-18 16:41:57,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2022-03-18 16:41:57,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.6243654822335025) internal successors, (320), 197 states have internal predecessors, (320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 324 transitions. [2022-03-18 16:41:57,362 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 324 transitions. Word has length 65 [2022-03-18 16:41:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:41:57,362 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 324 transitions. [2022-03-18 16:41:57,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 324 transitions. [2022-03-18 16:41:57,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:41:57,364 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:41:57,364 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:41:57,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 16:41:57,364 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:41:57,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:41:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1516154789, now seen corresponding path program 1 times [2022-03-18 16:41:57,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:41:57,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72490738] [2022-03-18 16:41:57,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:41:57,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:41:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:57,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:41:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:41:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:41:57,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:41:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72490738] [2022-03-18 16:41:57,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72490738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:41:57,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:41:57,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:41:57,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662602338] [2022-03-18 16:41:57,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:41:57,511 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:41:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:41:57,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:41:57,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:41:57,512 INFO L87 Difference]: Start difference. First operand 202 states and 324 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:59,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:41:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:41:59,948 INFO L93 Difference]: Finished difference Result 394 states and 631 transitions. [2022-03-18 16:41:59,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:41:59,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:41:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:41:59,950 INFO L225 Difference]: With dead ends: 394 [2022-03-18 16:41:59,950 INFO L226 Difference]: Without dead ends: 218 [2022-03-18 16:41:59,951 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:41:59,952 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 28 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:41:59,952 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 539 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:41:59,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-18 16:41:59,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2022-03-18 16:41:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.619289340101523) internal successors, (319), 197 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:59,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 323 transitions. [2022-03-18 16:41:59,961 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 323 transitions. Word has length 66 [2022-03-18 16:41:59,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:41:59,961 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 323 transitions. [2022-03-18 16:41:59,961 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:41:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 323 transitions. [2022-03-18 16:41:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:41:59,963 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:41:59,963 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:41:59,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 16:41:59,963 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:41:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:41:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash -678144017, now seen corresponding path program 1 times [2022-03-18 16:41:59,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:41:59,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490385972] [2022-03-18 16:41:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:41:59,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:00,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:00,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:00,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490385972] [2022-03-18 16:42:00,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490385972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:00,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:00,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:00,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92359708] [2022-03-18 16:42:00,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:00,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:00,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:00,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:00,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:00,112 INFO L87 Difference]: Start difference. First operand 202 states and 323 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:04,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:04,713 INFO L93 Difference]: Finished difference Result 504 states and 810 transitions. [2022-03-18 16:42:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:04,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:42:04,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:04,715 INFO L225 Difference]: With dead ends: 504 [2022-03-18 16:42:04,715 INFO L226 Difference]: Without dead ends: 328 [2022-03-18 16:42:04,716 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:04,717 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 165 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:04,717 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 16:42:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-03-18 16:42:04,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 214. [2022-03-18 16:42:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.6028708133971292) internal successors, (335), 209 states have internal predecessors, (335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 339 transitions. [2022-03-18 16:42:04,727 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 339 transitions. Word has length 66 [2022-03-18 16:42:04,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:04,727 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 339 transitions. [2022-03-18 16:42:04,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 339 transitions. [2022-03-18 16:42:04,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:42:04,729 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:04,729 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:04,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 16:42:04,729 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:04,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:04,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1396571558, now seen corresponding path program 1 times [2022-03-18 16:42:04,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:04,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292152346] [2022-03-18 16:42:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:04,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:04,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:04,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292152346] [2022-03-18 16:42:04,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292152346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:04,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:04,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:04,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634466076] [2022-03-18 16:42:04,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:04,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:04,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:04,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:04,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:04,844 INFO L87 Difference]: Start difference. First operand 214 states and 339 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:08,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:09,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:09,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:09,836 INFO L93 Difference]: Finished difference Result 516 states and 824 transitions. [2022-03-18 16:42:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:42:09,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:09,838 INFO L225 Difference]: With dead ends: 516 [2022-03-18 16:42:09,839 INFO L226 Difference]: Without dead ends: 328 [2022-03-18 16:42:09,839 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:09,840 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 159 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:09,840 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 398 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 16:42:09,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-03-18 16:42:09,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 219. [2022-03-18 16:42:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5981308411214954) internal successors, (342), 214 states have internal predecessors, (342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:09,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 346 transitions. [2022-03-18 16:42:09,847 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 346 transitions. Word has length 66 [2022-03-18 16:42:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:09,848 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 346 transitions. [2022-03-18 16:42:09,848 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:09,848 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 346 transitions. [2022-03-18 16:42:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:42:09,849 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:09,849 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:09,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 16:42:09,849 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:09,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1897223079, now seen corresponding path program 1 times [2022-03-18 16:42:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:09,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391663980] [2022-03-18 16:42:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:09,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:09,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:09,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:09,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391663980] [2022-03-18 16:42:09,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391663980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:09,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:09,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:09,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752798532] [2022-03-18 16:42:09,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:09,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:09,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:09,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:09,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:09,952 INFO L87 Difference]: Start difference. First operand 219 states and 346 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:11,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:12,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:13,548 INFO L93 Difference]: Finished difference Result 520 states and 828 transitions. [2022-03-18 16:42:13,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:13,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:42:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:13,552 INFO L225 Difference]: With dead ends: 520 [2022-03-18 16:42:13,553 INFO L226 Difference]: Without dead ends: 327 [2022-03-18 16:42:13,553 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:13,554 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 157 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:13,554 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 16:42:13,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-18 16:42:13,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 220. [2022-03-18 16:42:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.586046511627907) internal successors, (341), 215 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:13,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 345 transitions. [2022-03-18 16:42:13,565 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 345 transitions. Word has length 66 [2022-03-18 16:42:13,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:13,565 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 345 transitions. [2022-03-18 16:42:13,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:13,565 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 345 transitions. [2022-03-18 16:42:13,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 16:42:13,567 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:13,568 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:13,568 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 16:42:13,568 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash -941565164, now seen corresponding path program 1 times [2022-03-18 16:42:13,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:13,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510671246] [2022-03-18 16:42:13,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:13,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:13,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:13,695 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:13,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:13,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510671246] [2022-03-18 16:42:13,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510671246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:13,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:13,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:13,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217629860] [2022-03-18 16:42:13,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:13,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:13,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:13,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:13,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:13,697 INFO L87 Difference]: Start difference. First operand 220 states and 345 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:15,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:16,612 INFO L93 Difference]: Finished difference Result 521 states and 825 transitions. [2022-03-18 16:42:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:16,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-18 16:42:16,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:16,615 INFO L225 Difference]: With dead ends: 521 [2022-03-18 16:42:16,615 INFO L226 Difference]: Without dead ends: 327 [2022-03-18 16:42:16,615 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:16,616 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 161 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:16,616 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 16:42:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-18 16:42:16,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 220. [2022-03-18 16:42:16,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.572093023255814) internal successors, (338), 215 states have internal predecessors, (338), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 342 transitions. [2022-03-18 16:42:16,622 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 342 transitions. Word has length 67 [2022-03-18 16:42:16,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:16,623 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 342 transitions. [2022-03-18 16:42:16,623 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 342 transitions. [2022-03-18 16:42:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 16:42:16,624 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:16,624 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:16,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 16:42:16,624 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash -556482924, now seen corresponding path program 1 times [2022-03-18 16:42:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:16,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286020140] [2022-03-18 16:42:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:16,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:16,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286020140] [2022-03-18 16:42:16,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286020140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:16,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:16,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:16,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722685264] [2022-03-18 16:42:16,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:16,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:16,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:16,734 INFO L87 Difference]: Start difference. First operand 220 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:20,045 INFO L93 Difference]: Finished difference Result 427 states and 669 transitions. [2022-03-18 16:42:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-18 16:42:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:20,047 INFO L225 Difference]: With dead ends: 427 [2022-03-18 16:42:20,047 INFO L226 Difference]: Without dead ends: 233 [2022-03-18 16:42:20,048 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:20,048 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:20,049 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 16:42:20,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-03-18 16:42:20,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 220. [2022-03-18 16:42:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.5674418604651164) internal successors, (337), 215 states have internal predecessors, (337), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 341 transitions. [2022-03-18 16:42:20,054 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 341 transitions. Word has length 68 [2022-03-18 16:42:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:20,055 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 341 transitions. [2022-03-18 16:42:20,055 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:20,055 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 341 transitions. [2022-03-18 16:42:20,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-18 16:42:20,056 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:20,056 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:20,056 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 16:42:20,056 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1542632167, now seen corresponding path program 1 times [2022-03-18 16:42:20,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:20,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998213992] [2022-03-18 16:42:20,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:20,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:20,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:20,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:20,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998213992] [2022-03-18 16:42:20,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998213992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:20,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:20,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:20,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639673899] [2022-03-18 16:42:20,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:20,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:20,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:20,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:20,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:20,181 INFO L87 Difference]: Start difference. First operand 220 states and 341 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:21,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:21,953 INFO L93 Difference]: Finished difference Result 521 states and 819 transitions. [2022-03-18 16:42:21,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:21,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-18 16:42:21,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:21,956 INFO L225 Difference]: With dead ends: 521 [2022-03-18 16:42:21,956 INFO L226 Difference]: Without dead ends: 327 [2022-03-18 16:42:21,956 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:21,957 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 158 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:21,957 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-18 16:42:21,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-18 16:42:21,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 220. [2022-03-18 16:42:21,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.5534883720930233) internal successors, (334), 215 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 338 transitions. [2022-03-18 16:42:21,964 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 338 transitions. Word has length 69 [2022-03-18 16:42:21,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:21,964 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 338 transitions. [2022-03-18 16:42:21,964 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:21,965 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 338 transitions. [2022-03-18 16:42:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-18 16:42:21,965 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:21,965 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:21,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 16:42:21,966 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:21,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:21,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1451746050, now seen corresponding path program 1 times [2022-03-18 16:42:21,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:21,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490820179] [2022-03-18 16:42:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:21,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:22,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:22,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490820179] [2022-03-18 16:42:22,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490820179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:22,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:22,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:22,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040385381] [2022-03-18 16:42:22,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:22,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:22,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:22,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:22,075 INFO L87 Difference]: Start difference. First operand 220 states and 338 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:23,984 INFO L93 Difference]: Finished difference Result 456 states and 706 transitions. [2022-03-18 16:42:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:23,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-18 16:42:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:23,986 INFO L225 Difference]: With dead ends: 456 [2022-03-18 16:42:23,986 INFO L226 Difference]: Without dead ends: 262 [2022-03-18 16:42:23,987 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:23,988 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 29 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:23,988 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 559 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:42:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-18 16:42:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 242. [2022-03-18 16:42:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.5485232067510548) internal successors, (367), 237 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 371 transitions. [2022-03-18 16:42:23,994 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 371 transitions. Word has length 69 [2022-03-18 16:42:23,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:23,994 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 371 transitions. [2022-03-18 16:42:23,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:23,995 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 371 transitions. [2022-03-18 16:42:23,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-18 16:42:23,995 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:23,995 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:23,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 16:42:23,996 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:23,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2125015415, now seen corresponding path program 1 times [2022-03-18 16:42:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:23,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638161577] [2022-03-18 16:42:23,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:23,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:24,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:24,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638161577] [2022-03-18 16:42:24,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638161577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:24,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:24,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:24,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659590364] [2022-03-18 16:42:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:24,126 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:24,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:24,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:24,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:24,127 INFO L87 Difference]: Start difference. First operand 242 states and 371 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) [2022-03-18 16:42:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:25,515 INFO L93 Difference]: Finished difference Result 476 states and 736 transitions. [2022-03-18 16:42:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:25,516 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 82 [2022-03-18 16:42:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:25,517 INFO L225 Difference]: With dead ends: 476 [2022-03-18 16:42:25,517 INFO L226 Difference]: Without dead ends: 260 [2022-03-18 16:42:25,518 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:25,519 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 34 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:25,519 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 563 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-18 16:42:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-18 16:42:25,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 242. [2022-03-18 16:42:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.5443037974683544) internal successors, (366), 237 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 370 transitions. [2022-03-18 16:42:25,525 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 370 transitions. Word has length 82 [2022-03-18 16:42:25,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:25,525 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 370 transitions. [2022-03-18 16:42:25,525 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) [2022-03-18 16:42:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 370 transitions. [2022-03-18 16:42:25,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-18 16:42:25,526 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:25,526 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:25,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 16:42:25,527 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:25,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash -390489329, now seen corresponding path program 1 times [2022-03-18 16:42:25,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:25,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575320510] [2022-03-18 16:42:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:25,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:25,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:42:25,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:25,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575320510] [2022-03-18 16:42:25,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575320510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:25,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:25,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:25,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375841171] [2022-03-18 16:42:25,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:25,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:25,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:25,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:25,636 INFO L87 Difference]: Start difference. First operand 242 states and 370 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:27,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:28,955 INFO L93 Difference]: Finished difference Result 487 states and 750 transitions. [2022-03-18 16:42:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-18 16:42:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:28,957 INFO L225 Difference]: With dead ends: 487 [2022-03-18 16:42:28,957 INFO L226 Difference]: Without dead ends: 271 [2022-03-18 16:42:28,957 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:28,958 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 19 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:28,958 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 622 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 16:42:28,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-18 16:42:28,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 258. [2022-03-18 16:42:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5375494071146245) internal successors, (389), 253 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 393 transitions. [2022-03-18 16:42:28,965 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 393 transitions. Word has length 83 [2022-03-18 16:42:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:28,965 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 393 transitions. [2022-03-18 16:42:28,965 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 393 transitions. [2022-03-18 16:42:28,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:42:28,966 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:28,966 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:28,966 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 16:42:28,966 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:28,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1441438536, now seen corresponding path program 1 times [2022-03-18 16:42:28,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:28,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723258941] [2022-03-18 16:42:28,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:28,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-18 16:42:29,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:29,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723258941] [2022-03-18 16:42:29,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723258941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:29,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:29,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 16:42:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404311253] [2022-03-18 16:42:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:29,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:42:29,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:42:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:29,090 INFO L87 Difference]: Start difference. First operand 258 states and 393 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:31,635 INFO L93 Difference]: Finished difference Result 499 states and 768 transitions. [2022-03-18 16:42:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 16:42:31,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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 84 [2022-03-18 16:42:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:31,637 INFO L225 Difference]: With dead ends: 499 [2022-03-18 16:42:31,637 INFO L226 Difference]: Without dead ends: 267 [2022-03-18 16:42:31,638 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:42:31,638 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 3 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:31,638 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 705 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:42:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-18 16:42:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-03-18 16:42:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 262 states have (on average 1.5267175572519085) internal successors, (400), 262 states have internal predecessors, (400), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:31,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 404 transitions. [2022-03-18 16:42:31,645 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 404 transitions. Word has length 84 [2022-03-18 16:42:31,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:31,645 INFO L478 AbstractCegarLoop]: Abstraction has 267 states and 404 transitions. [2022-03-18 16:42:31,645 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 404 transitions. [2022-03-18 16:42:31,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-18 16:42:31,646 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:31,646 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:31,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 16:42:31,646 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:31,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:31,647 INFO L85 PathProgramCache]: Analyzing trace with hash 185676079, now seen corresponding path program 1 times [2022-03-18 16:42:31,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:31,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048122172] [2022-03-18 16:42:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:31,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:42:31,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:31,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048122172] [2022-03-18 16:42:31,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048122172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:31,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:31,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:31,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125866412] [2022-03-18 16:42:31,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:31,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:31,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:31,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:31,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:31,749 INFO L87 Difference]: Start difference. First operand 267 states and 404 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:34,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:35,885 INFO L93 Difference]: Finished difference Result 525 states and 800 transitions. [2022-03-18 16:42:35,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:35,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-18 16:42:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:35,887 INFO L225 Difference]: With dead ends: 525 [2022-03-18 16:42:35,887 INFO L226 Difference]: Without dead ends: 284 [2022-03-18 16:42:35,888 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:35,888 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 34 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:35,888 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 565 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 16:42:35,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-03-18 16:42:35,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 267. [2022-03-18 16:42:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 262 states have (on average 1.5229007633587786) internal successors, (399), 262 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 403 transitions. [2022-03-18 16:42:35,895 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 403 transitions. Word has length 86 [2022-03-18 16:42:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:35,895 INFO L478 AbstractCegarLoop]: Abstraction has 267 states and 403 transitions. [2022-03-18 16:42:35,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 403 transitions. [2022-03-18 16:42:35,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-18 16:42:35,896 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:35,896 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:35,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 16:42:35,897 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash 706337034, now seen corresponding path program 1 times [2022-03-18 16:42:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:35,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947856327] [2022-03-18 16:42:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:35,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:42:36,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947856327] [2022-03-18 16:42:36,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947856327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:36,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:36,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:36,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134054429] [2022-03-18 16:42:36,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:36,021 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:36,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:36,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:36,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:36,021 INFO L87 Difference]: Start difference. First operand 267 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:39,186 INFO L93 Difference]: Finished difference Result 624 states and 955 transitions. [2022-03-18 16:42:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-18 16:42:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:39,188 INFO L225 Difference]: With dead ends: 624 [2022-03-18 16:42:39,188 INFO L226 Difference]: Without dead ends: 383 [2022-03-18 16:42:39,188 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:39,189 INFO L912 BasicCegarLoop]: 150 mSDtfsCounter, 133 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:39,189 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 426 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-18 16:42:39,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-18 16:42:39,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 289. [2022-03-18 16:42:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 284 states have (on average 1.556338028169014) internal successors, (442), 284 states have internal predecessors, (442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 446 transitions. [2022-03-18 16:42:39,196 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 446 transitions. Word has length 91 [2022-03-18 16:42:39,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:39,197 INFO L478 AbstractCegarLoop]: Abstraction has 289 states and 446 transitions. [2022-03-18 16:42:39,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 446 transitions. [2022-03-18 16:42:39,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-18 16:42:39,198 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:39,198 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:39,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 16:42:39,198 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:39,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:39,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1302523982, now seen corresponding path program 1 times [2022-03-18 16:42:39,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:39,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816370199] [2022-03-18 16:42:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:39,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:42:39,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:39,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816370199] [2022-03-18 16:42:39,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816370199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:39,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:39,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:39,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368268589] [2022-03-18 16:42:39,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:39,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:39,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:39,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:39,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:39,313 INFO L87 Difference]: Start difference. First operand 289 states and 446 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:42,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:42,012 INFO L93 Difference]: Finished difference Result 662 states and 1027 transitions. [2022-03-18 16:42:42,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:42,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-18 16:42:42,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:42,014 INFO L225 Difference]: With dead ends: 662 [2022-03-18 16:42:42,014 INFO L226 Difference]: Without dead ends: 399 [2022-03-18 16:42:42,015 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:42,015 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 97 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:42,015 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 561 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:42:42,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-18 16:42:42,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 323. [2022-03-18 16:42:42,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.5628930817610063) internal successors, (497), 318 states have internal predecessors, (497), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:42,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 501 transitions. [2022-03-18 16:42:42,023 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 501 transitions. Word has length 119 [2022-03-18 16:42:42,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:42,023 INFO L478 AbstractCegarLoop]: Abstraction has 323 states and 501 transitions. [2022-03-18 16:42:42,023 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 501 transitions. [2022-03-18 16:42:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-18 16:42:42,024 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:42,024 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:42,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 16:42:42,025 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:42,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:42,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2025092660, now seen corresponding path program 1 times [2022-03-18 16:42:42,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:42,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567501741] [2022-03-18 16:42:42,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:42,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:42,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-18 16:42:42,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:42,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567501741] [2022-03-18 16:42:42,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567501741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:42,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:42,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:42,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984048709] [2022-03-18 16:42:42,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:42,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:42,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:42,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:42,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:42,140 INFO L87 Difference]: Start difference. First operand 323 states and 501 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:44,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:44,045 INFO L93 Difference]: Finished difference Result 678 states and 1054 transitions. [2022-03-18 16:42:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:44,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-18 16:42:44,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:44,047 INFO L225 Difference]: With dead ends: 678 [2022-03-18 16:42:44,047 INFO L226 Difference]: Without dead ends: 381 [2022-03-18 16:42:44,047 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:44,048 INFO L912 BasicCegarLoop]: 264 mSDtfsCounter, 37 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:44,048 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 659 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:42:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-18 16:42:44,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 347. [2022-03-18 16:42:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5614035087719298) internal successors, (534), 342 states have internal predecessors, (534), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 538 transitions. [2022-03-18 16:42:44,057 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 538 transitions. Word has length 119 [2022-03-18 16:42:44,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:44,057 INFO L478 AbstractCegarLoop]: Abstraction has 347 states and 538 transitions. [2022-03-18 16:42:44,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:44,057 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 538 transitions. [2022-03-18 16:42:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-18 16:42:44,058 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:44,059 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:44,059 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 16:42:44,059 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:44,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:44,059 INFO L85 PathProgramCache]: Analyzing trace with hash 806987058, now seen corresponding path program 1 times [2022-03-18 16:42:44,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:44,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823937022] [2022-03-18 16:42:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:44,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-18 16:42:44,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:44,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823937022] [2022-03-18 16:42:44,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823937022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:44,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:44,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:44,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527882512] [2022-03-18 16:42:44,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:44,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:44,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:44,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:44,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:44,164 INFO L87 Difference]: Start difference. First operand 347 states and 538 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:45,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:48,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:48,694 INFO L93 Difference]: Finished difference Result 675 states and 1056 transitions. [2022-03-18 16:42:48,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:48,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-18 16:42:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:48,696 INFO L225 Difference]: With dead ends: 675 [2022-03-18 16:42:48,696 INFO L226 Difference]: Without dead ends: 354 [2022-03-18 16:42:48,697 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:48,698 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 30 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:48,698 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 16:42:48,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-03-18 16:42:48,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 347. [2022-03-18 16:42:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5584795321637428) internal successors, (533), 342 states have internal predecessors, (533), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:48,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 537 transitions. [2022-03-18 16:42:48,706 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 537 transitions. Word has length 124 [2022-03-18 16:42:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:48,706 INFO L478 AbstractCegarLoop]: Abstraction has 347 states and 537 transitions. [2022-03-18 16:42:48,706 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 537 transitions. [2022-03-18 16:42:48,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-18 16:42:48,708 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:48,708 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:48,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 16:42:48,708 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:48,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:48,708 INFO L85 PathProgramCache]: Analyzing trace with hash -532919832, now seen corresponding path program 1 times [2022-03-18 16:42:48,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:48,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331861927] [2022-03-18 16:42:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:48,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:42:48,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:48,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331861927] [2022-03-18 16:42:48,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331861927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:48,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:48,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:48,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575688200] [2022-03-18 16:42:48,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:48,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:48,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:48,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:48,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:48,844 INFO L87 Difference]: Start difference. First operand 347 states and 537 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:50,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:52,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:53,863 INFO L93 Difference]: Finished difference Result 802 states and 1247 transitions. [2022-03-18 16:42:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-18 16:42:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:53,865 INFO L225 Difference]: With dead ends: 802 [2022-03-18 16:42:53,866 INFO L226 Difference]: Without dead ends: 481 [2022-03-18 16:42:53,866 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:53,867 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 135 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:53,867 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 16:42:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-03-18 16:42:53,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 384. [2022-03-18 16:42:53,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5699208443271768) internal successors, (595), 379 states have internal predecessors, (595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:53,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 599 transitions. [2022-03-18 16:42:53,876 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 599 transitions. Word has length 125 [2022-03-18 16:42:53,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:53,876 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 599 transitions. [2022-03-18 16:42:53,876 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 599 transitions. [2022-03-18 16:42:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-18 16:42:53,877 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:53,877 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:53,878 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 16:42:53,878 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:53,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:53,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1088367856, now seen corresponding path program 1 times [2022-03-18 16:42:53,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:53,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934016498] [2022-03-18 16:42:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:53,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:42:53,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:53,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934016498] [2022-03-18 16:42:53,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934016498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:53,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:53,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:53,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662269970] [2022-03-18 16:42:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:53,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:53,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:53,990 INFO L87 Difference]: Start difference. First operand 384 states and 599 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:55,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:42:56,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:56,439 INFO L93 Difference]: Finished difference Result 815 states and 1272 transitions. [2022-03-18 16:42:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:56,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-18 16:42:56,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:56,441 INFO L225 Difference]: With dead ends: 815 [2022-03-18 16:42:56,441 INFO L226 Difference]: Without dead ends: 457 [2022-03-18 16:42:56,442 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:56,442 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 86 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:56,443 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 525 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:42:56,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-03-18 16:42:56,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 390. [2022-03-18 16:42:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.5714285714285714) internal successors, (605), 385 states have internal predecessors, (605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 609 transitions. [2022-03-18 16:42:56,451 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 609 transitions. Word has length 126 [2022-03-18 16:42:56,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:56,451 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 609 transitions. [2022-03-18 16:42:56,452 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:56,452 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 609 transitions. [2022-03-18 16:42:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 16:42:56,453 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:56,453 INFO L500 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:56,453 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 16:42:56,453 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:56,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:56,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1486691735, now seen corresponding path program 1 times [2022-03-18 16:42:56,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:56,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071022040] [2022-03-18 16:42:56,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:56,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:56,562 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:42:56,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:56,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071022040] [2022-03-18 16:42:56,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071022040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:56,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:56,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:56,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322314569] [2022-03-18 16:42:56,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:56,563 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:56,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:56,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:56,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:56,564 INFO L87 Difference]: Start difference. First operand 390 states and 609 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:42:59,118 INFO L93 Difference]: Finished difference Result 819 states and 1279 transitions. [2022-03-18 16:42:59,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:42:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-18 16:42:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:42:59,120 INFO L225 Difference]: With dead ends: 819 [2022-03-18 16:42:59,120 INFO L226 Difference]: Without dead ends: 455 [2022-03-18 16:42:59,121 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:42:59,122 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 107 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:42:59,122 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 527 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:42:59,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-03-18 16:42:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 390. [2022-03-18 16:42:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.568831168831169) internal successors, (604), 385 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 608 transitions. [2022-03-18 16:42:59,130 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 608 transitions. Word has length 132 [2022-03-18 16:42:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:42:59,130 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 608 transitions. [2022-03-18 16:42:59,130 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:42:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 608 transitions. [2022-03-18 16:42:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 16:42:59,131 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:42:59,132 INFO L500 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:42:59,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 16:42:59,132 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:42:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:42:59,132 INFO L85 PathProgramCache]: Analyzing trace with hash -392439211, now seen corresponding path program 1 times [2022-03-18 16:42:59,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:42:59,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100404854] [2022-03-18 16:42:59,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:42:59,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:42:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:42:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:42:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:42:59,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:42:59,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100404854] [2022-03-18 16:42:59,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100404854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:42:59,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:42:59,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:42:59,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853725994] [2022-03-18 16:42:59,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:42:59,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:42:59,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:42:59,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:42:59,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:42:59,250 INFO L87 Difference]: Start difference. First operand 390 states and 608 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:01,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:01,438 INFO L93 Difference]: Finished difference Result 846 states and 1319 transitions. [2022-03-18 16:43:01,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:01,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-18 16:43:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:01,440 INFO L225 Difference]: With dead ends: 846 [2022-03-18 16:43:01,440 INFO L226 Difference]: Without dead ends: 482 [2022-03-18 16:43:01,441 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:01,441 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 156 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:01,442 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 402 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:43:01,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-03-18 16:43:01,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 390. [2022-03-18 16:43:01,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.5584415584415585) internal successors, (600), 385 states have internal predecessors, (600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 604 transitions. [2022-03-18 16:43:01,450 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 604 transitions. Word has length 132 [2022-03-18 16:43:01,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:01,450 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 604 transitions. [2022-03-18 16:43:01,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 604 transitions. [2022-03-18 16:43:01,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 16:43:01,452 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:01,452 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:01,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 16:43:01,452 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:01,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:01,452 INFO L85 PathProgramCache]: Analyzing trace with hash 706398648, now seen corresponding path program 1 times [2022-03-18 16:43:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:01,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171219840] [2022-03-18 16:43:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:01,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:43:01,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:01,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171219840] [2022-03-18 16:43:01,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171219840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:01,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:01,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:01,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320307011] [2022-03-18 16:43:01,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:01,584 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:01,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:01,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:01,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:01,584 INFO L87 Difference]: Start difference. First operand 390 states and 604 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:04,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:05,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:05,742 INFO L93 Difference]: Finished difference Result 811 states and 1256 transitions. [2022-03-18 16:43:05,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:05,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-18 16:43:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:05,744 INFO L225 Difference]: With dead ends: 811 [2022-03-18 16:43:05,744 INFO L226 Difference]: Without dead ends: 447 [2022-03-18 16:43:05,745 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:05,745 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 69 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:05,746 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 535 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 16:43:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-03-18 16:43:05,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 393. [2022-03-18 16:43:05,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5541237113402062) internal successors, (603), 388 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 607 transitions. [2022-03-18 16:43:05,754 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 607 transitions. Word has length 133 [2022-03-18 16:43:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:05,754 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 607 transitions. [2022-03-18 16:43:05,754 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 607 transitions. [2022-03-18 16:43:05,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-18 16:43:05,755 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:05,755 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:05,755 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 16:43:05,756 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:05,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:05,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1808704847, now seen corresponding path program 1 times [2022-03-18 16:43:05,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:05,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198671438] [2022-03-18 16:43:05,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:05,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:05,882 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:43:05,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:05,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198671438] [2022-03-18 16:43:05,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198671438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:05,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:05,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:05,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28206164] [2022-03-18 16:43:05,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:05,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:05,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:05,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:05,883 INFO L87 Difference]: Start difference. First operand 393 states and 607 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) [2022-03-18 16:43:09,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:10,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:11,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:11,247 INFO L93 Difference]: Finished difference Result 804 states and 1245 transitions. [2022-03-18 16:43:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:11,247 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 136 [2022-03-18 16:43:11,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:11,248 INFO L225 Difference]: With dead ends: 804 [2022-03-18 16:43:11,248 INFO L226 Difference]: Without dead ends: 437 [2022-03-18 16:43:11,249 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:11,249 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 94 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:11,249 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 537 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 16:43:11,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-03-18 16:43:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 393. [2022-03-18 16:43:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 388 states have internal predecessors, (602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 606 transitions. [2022-03-18 16:43:11,257 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 606 transitions. Word has length 136 [2022-03-18 16:43:11,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:11,258 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 606 transitions. [2022-03-18 16:43:11,258 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) [2022-03-18 16:43:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 606 transitions. [2022-03-18 16:43:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-18 16:43:11,259 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:11,259 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:11,259 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 16:43:11,259 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:11,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash 814011149, now seen corresponding path program 1 times [2022-03-18 16:43:11,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:11,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877964873] [2022-03-18 16:43:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:11,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:43:11,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:11,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877964873] [2022-03-18 16:43:11,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877964873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:11,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:11,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:11,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699796691] [2022-03-18 16:43:11,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:11,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:11,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:11,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:11,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:11,388 INFO L87 Difference]: Start difference. First operand 393 states and 606 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) [2022-03-18 16:43:13,230 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 [] [2022-03-18 16:43:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:15,099 INFO L93 Difference]: Finished difference Result 844 states and 1304 transitions. [2022-03-18 16:43:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:15,099 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 136 [2022-03-18 16:43:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:15,101 INFO L225 Difference]: With dead ends: 844 [2022-03-18 16:43:15,101 INFO L226 Difference]: Without dead ends: 477 [2022-03-18 16:43:15,101 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:15,102 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 157 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:15,102 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 428 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 16:43:15,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-03-18 16:43:15,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 393. [2022-03-18 16:43:15,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.538659793814433) internal successors, (597), 388 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2022-03-18 16:43:15,110 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 136 [2022-03-18 16:43:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:15,110 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2022-03-18 16:43:15,110 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) [2022-03-18 16:43:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2022-03-18 16:43:15,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-18 16:43:15,111 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:15,112 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:15,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 16:43:15,112 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2048612344, now seen corresponding path program 1 times [2022-03-18 16:43:15,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:15,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274940168] [2022-03-18 16:43:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:15,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:15,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:15,239 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:43:15,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:15,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274940168] [2022-03-18 16:43:15,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274940168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:15,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:15,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:15,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572133635] [2022-03-18 16:43:15,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:15,240 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:15,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:15,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:15,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:15,241 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:17,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:19,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:19,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:19,863 INFO L93 Difference]: Finished difference Result 844 states and 1294 transitions. [2022-03-18 16:43:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:19,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2022-03-18 16:43:19,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:19,864 INFO L225 Difference]: With dead ends: 844 [2022-03-18 16:43:19,864 INFO L226 Difference]: Without dead ends: 477 [2022-03-18 16:43:19,865 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:19,865 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 146 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:19,866 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 442 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 16:43:19,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-03-18 16:43:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 393. [2022-03-18 16:43:19,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5283505154639174) internal successors, (593), 388 states have internal predecessors, (593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:19,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 597 transitions. [2022-03-18 16:43:19,873 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 597 transitions. Word has length 141 [2022-03-18 16:43:19,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:19,874 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 597 transitions. [2022-03-18 16:43:19,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 597 transitions. [2022-03-18 16:43:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-18 16:43:19,875 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:19,875 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:19,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 16:43:19,875 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:19,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:19,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1362845962, now seen corresponding path program 1 times [2022-03-18 16:43:19,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:19,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485332661] [2022-03-18 16:43:19,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:19,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:43:19,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:19,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485332661] [2022-03-18 16:43:19,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485332661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:19,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:19,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:19,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138591917] [2022-03-18 16:43:19,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:19,990 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:19,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:19,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:19,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:19,991 INFO L87 Difference]: Start difference. First operand 393 states and 597 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:22,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:23,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:24,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:24,300 INFO L93 Difference]: Finished difference Result 920 states and 1410 transitions. [2022-03-18 16:43:24,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:24,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2022-03-18 16:43:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:24,301 INFO L225 Difference]: With dead ends: 920 [2022-03-18 16:43:24,301 INFO L226 Difference]: Without dead ends: 553 [2022-03-18 16:43:24,302 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:24,302 INFO L912 BasicCegarLoop]: 157 mSDtfsCounter, 137 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:24,302 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 440 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-18 16:43:24,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-18 16:43:24,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 457. [2022-03-18 16:43:24,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 452 states have (on average 1.5309734513274336) internal successors, (692), 452 states have internal predecessors, (692), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:24,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 696 transitions. [2022-03-18 16:43:24,311 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 696 transitions. Word has length 141 [2022-03-18 16:43:24,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:24,311 INFO L478 AbstractCegarLoop]: Abstraction has 457 states and 696 transitions. [2022-03-18 16:43:24,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 696 transitions. [2022-03-18 16:43:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 16:43:24,313 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:24,313 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:24,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 16:43:24,313 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:24,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:24,313 INFO L85 PathProgramCache]: Analyzing trace with hash 717063722, now seen corresponding path program 1 times [2022-03-18 16:43:24,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:24,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421333039] [2022-03-18 16:43:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:24,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:24,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 16:43:24,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:24,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421333039] [2022-03-18 16:43:24,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421333039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:24,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:24,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572865974] [2022-03-18 16:43:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:24,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:24,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:24,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:24,431 INFO L87 Difference]: Start difference. First operand 457 states and 696 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) [2022-03-18 16:43:25,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:27,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:28,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:29,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:29,923 INFO L93 Difference]: Finished difference Result 962 states and 1472 transitions. [2022-03-18 16:43:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:29,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-18 16:43:29,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:29,925 INFO L225 Difference]: With dead ends: 962 [2022-03-18 16:43:29,925 INFO L226 Difference]: Without dead ends: 531 [2022-03-18 16:43:29,926 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:29,926 INFO L912 BasicCegarLoop]: 161 mSDtfsCounter, 153 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:29,926 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 448 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 16:43:29,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-03-18 16:43:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 457. [2022-03-18 16:43:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 452 states have (on average 1.5132743362831858) internal successors, (684), 452 states have internal predecessors, (684), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 688 transitions. [2022-03-18 16:43:29,935 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 688 transitions. Word has length 146 [2022-03-18 16:43:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:29,936 INFO L478 AbstractCegarLoop]: Abstraction has 457 states and 688 transitions. [2022-03-18 16:43:29,936 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) [2022-03-18 16:43:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 688 transitions. [2022-03-18 16:43:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 16:43:29,937 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:29,937 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:29,937 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 16:43:29,937 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:29,938 INFO L85 PathProgramCache]: Analyzing trace with hash -28401772, now seen corresponding path program 1 times [2022-03-18 16:43:29,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:29,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074064712] [2022-03-18 16:43:29,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:29,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:30,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:43:30,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:30,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074064712] [2022-03-18 16:43:30,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074064712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:30,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:30,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:30,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664994414] [2022-03-18 16:43:30,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:30,049 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:30,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:30,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:30,049 INFO L87 Difference]: Start difference. First operand 457 states and 688 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:31,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:33,477 INFO L93 Difference]: Finished difference Result 1002 states and 1518 transitions. [2022-03-18 16:43:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-18 16:43:33,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:33,479 INFO L225 Difference]: With dead ends: 1002 [2022-03-18 16:43:33,479 INFO L226 Difference]: Without dead ends: 571 [2022-03-18 16:43:33,480 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:33,481 INFO L912 BasicCegarLoop]: 161 mSDtfsCounter, 133 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:33,481 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 448 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 16:43:33,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-03-18 16:43:33,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 487. [2022-03-18 16:43:33,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.5020746887966805) internal successors, (724), 482 states have internal predecessors, (724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 728 transitions. [2022-03-18 16:43:33,490 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 728 transitions. Word has length 146 [2022-03-18 16:43:33,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:33,490 INFO L478 AbstractCegarLoop]: Abstraction has 487 states and 728 transitions. [2022-03-18 16:43:33,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:33,490 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 728 transitions. [2022-03-18 16:43:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-18 16:43:33,492 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:33,492 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:33,492 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 16:43:33,492 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:33,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:33,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1277749095, now seen corresponding path program 1 times [2022-03-18 16:43:33,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:33,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223821896] [2022-03-18 16:43:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:33,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:33,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:43:33,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:33,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223821896] [2022-03-18 16:43:33,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223821896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:33,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:33,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:33,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34769854] [2022-03-18 16:43:33,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:33,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:33,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:33,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:33,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:33,622 INFO L87 Difference]: Start difference. First operand 487 states and 728 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:35,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:36,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:36,368 INFO L93 Difference]: Finished difference Result 980 states and 1473 transitions. [2022-03-18 16:43:36,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:36,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-18 16:43:36,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:36,370 INFO L225 Difference]: With dead ends: 980 [2022-03-18 16:43:36,370 INFO L226 Difference]: Without dead ends: 519 [2022-03-18 16:43:36,370 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:36,371 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 66 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:36,371 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 569 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:43:36,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-03-18 16:43:36,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 487. [2022-03-18 16:43:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.5) internal successors, (723), 482 states have internal predecessors, (723), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 727 transitions. [2022-03-18 16:43:36,380 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 727 transitions. Word has length 147 [2022-03-18 16:43:36,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:36,380 INFO L478 AbstractCegarLoop]: Abstraction has 487 states and 727 transitions. [2022-03-18 16:43:36,380 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:36,380 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 727 transitions. [2022-03-18 16:43:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 16:43:36,382 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:36,382 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:36,382 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 16:43:36,382 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:36,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:36,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1059379048, now seen corresponding path program 1 times [2022-03-18 16:43:36,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:36,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077933804] [2022-03-18 16:43:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:36,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 16:43:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:36,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077933804] [2022-03-18 16:43:36,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077933804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:36,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:36,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:43:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974379853] [2022-03-18 16:43:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:36,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:43:36,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:43:36,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:36,505 INFO L87 Difference]: Start difference. First operand 487 states and 727 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:38,371 INFO L93 Difference]: Finished difference Result 1406 states and 2119 transitions. [2022-03-18 16:43:38,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:43:38,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 16:43:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:38,374 INFO L225 Difference]: With dead ends: 1406 [2022-03-18 16:43:38,375 INFO L226 Difference]: Without dead ends: 945 [2022-03-18 16:43:38,375 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:38,376 INFO L912 BasicCegarLoop]: 256 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:38,376 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 450 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:43:38,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-03-18 16:43:38,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2022-03-18 16:43:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.4882978723404254) internal successors, (1399), 940 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:38,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1403 transitions. [2022-03-18 16:43:38,392 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1403 transitions. Word has length 148 [2022-03-18 16:43:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:38,392 INFO L478 AbstractCegarLoop]: Abstraction has 945 states and 1403 transitions. [2022-03-18 16:43:38,392 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1403 transitions. [2022-03-18 16:43:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 16:43:38,394 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:38,394 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:38,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 16:43:38,395 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:38,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1368879574, now seen corresponding path program 1 times [2022-03-18 16:43:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:38,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820719971] [2022-03-18 16:43:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:38,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:38,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:38,500 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-18 16:43:38,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:38,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820719971] [2022-03-18 16:43:38,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820719971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:38,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:38,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:43:38,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905068734] [2022-03-18 16:43:38,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:38,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:43:38,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:38,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:43:38,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:38,501 INFO L87 Difference]: Start difference. First operand 945 states and 1403 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:40,762 INFO L93 Difference]: Finished difference Result 1891 states and 2813 transitions. [2022-03-18 16:43:40,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:43:40,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 16:43:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:40,765 INFO L225 Difference]: With dead ends: 1891 [2022-03-18 16:43:40,765 INFO L226 Difference]: Without dead ends: 972 [2022-03-18 16:43:40,766 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:40,766 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:40,766 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:43:40,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-03-18 16:43:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 972. [2022-03-18 16:43:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 967 states have (on average 1.482936918304033) internal successors, (1434), 967 states have internal predecessors, (1434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1438 transitions. [2022-03-18 16:43:40,782 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1438 transitions. Word has length 148 [2022-03-18 16:43:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:40,782 INFO L478 AbstractCegarLoop]: Abstraction has 972 states and 1438 transitions. [2022-03-18 16:43:40,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:40,782 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1438 transitions. [2022-03-18 16:43:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 16:43:40,784 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:40,785 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:40,785 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 16:43:40,785 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash -681529324, now seen corresponding path program 1 times [2022-03-18 16:43:40,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:40,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522083691] [2022-03-18 16:43:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:40,882 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-18 16:43:40,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:40,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522083691] [2022-03-18 16:43:40,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522083691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:40,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:40,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:43:40,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66401424] [2022-03-18 16:43:40,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:40,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:43:40,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:40,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:43:40,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:40,884 INFO L87 Difference]: Start difference. First operand 972 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:42,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:43,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:43,202 INFO L93 Difference]: Finished difference Result 1920 states and 2849 transitions. [2022-03-18 16:43:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:43:43,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 16:43:43,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:43,205 INFO L225 Difference]: With dead ends: 1920 [2022-03-18 16:43:43,205 INFO L226 Difference]: Without dead ends: 974 [2022-03-18 16:43:43,206 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:43,207 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:43,207 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:43:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-03-18 16:43:43,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2022-03-18 16:43:43,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 969 states have (on average 1.4819401444788443) internal successors, (1436), 969 states have internal predecessors, (1436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1440 transitions. [2022-03-18 16:43:43,249 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1440 transitions. Word has length 148 [2022-03-18 16:43:43,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:43,249 INFO L478 AbstractCegarLoop]: Abstraction has 974 states and 1440 transitions. [2022-03-18 16:43:43,249 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:43,249 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1440 transitions. [2022-03-18 16:43:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-18 16:43:43,251 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:43,251 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:43,251 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 16:43:43,252 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:43,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:43,252 INFO L85 PathProgramCache]: Analyzing trace with hash 876192622, now seen corresponding path program 1 times [2022-03-18 16:43:43,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:43,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260367200] [2022-03-18 16:43:43,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:43,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:43,371 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:43:43,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:43,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260367200] [2022-03-18 16:43:43,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260367200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:43,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:43,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:43:43,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201385683] [2022-03-18 16:43:43,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:43,372 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:43:43,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:43,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:43:43,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:43,373 INFO L87 Difference]: Start difference. First operand 974 states and 1440 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:46,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:46,843 INFO L93 Difference]: Finished difference Result 2378 states and 3543 transitions. [2022-03-18 16:43:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:43:46,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-18 16:43:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:46,847 INFO L225 Difference]: With dead ends: 2378 [2022-03-18 16:43:46,848 INFO L226 Difference]: Without dead ends: 1432 [2022-03-18 16:43:46,849 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:46,849 INFO L912 BasicCegarLoop]: 401 mSDtfsCounter, 156 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:46,850 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 595 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 16:43:46,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2022-03-18 16:43:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1432. [2022-03-18 16:43:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1427 states have (on average 1.4800280308339173) internal successors, (2112), 1427 states have internal predecessors, (2112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2116 transitions. [2022-03-18 16:43:46,872 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2116 transitions. Word has length 150 [2022-03-18 16:43:46,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:46,872 INFO L478 AbstractCegarLoop]: Abstraction has 1432 states and 2116 transitions. [2022-03-18 16:43:46,873 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2116 transitions. [2022-03-18 16:43:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-18 16:43:46,875 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:46,876 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-18 16:43:46,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 16:43:46,876 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:46,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:46,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1363996308, now seen corresponding path program 1 times [2022-03-18 16:43:46,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:46,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147832500] [2022-03-18 16:43:46,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:46,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-18 16:43:47,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:47,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147832500] [2022-03-18 16:43:47,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147832500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:47,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:47,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:47,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307626195] [2022-03-18 16:43:47,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:47,025 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:47,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:47,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:47,026 INFO L87 Difference]: Start difference. First operand 1432 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:48,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:49,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:49,413 INFO L93 Difference]: Finished difference Result 2986 states and 4419 transitions. [2022-03-18 16:43:49,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:49,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-03-18 16:43:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:49,417 INFO L225 Difference]: With dead ends: 2986 [2022-03-18 16:43:49,417 INFO L226 Difference]: Without dead ends: 1582 [2022-03-18 16:43:49,418 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:49,419 INFO L912 BasicCegarLoop]: 262 mSDtfsCounter, 40 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:49,419 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 655 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:43:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2022-03-18 16:43:49,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1516. [2022-03-18 16:43:49,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1511 states have (on average 1.4791528788881536) internal successors, (2235), 1511 states have internal predecessors, (2235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2239 transitions. [2022-03-18 16:43:49,443 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2239 transitions. Word has length 179 [2022-03-18 16:43:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:49,443 INFO L478 AbstractCegarLoop]: Abstraction has 1516 states and 2239 transitions. [2022-03-18 16:43:49,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:49,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2239 transitions. [2022-03-18 16:43:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-18 16:43:49,446 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:49,446 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:49,447 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 16:43:49,447 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:49,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2095504041, now seen corresponding path program 1 times [2022-03-18 16:43:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:49,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992375442] [2022-03-18 16:43:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-03-18 16:43:49,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:49,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992375442] [2022-03-18 16:43:49,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992375442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:49,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:49,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900888026] [2022-03-18 16:43:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:49,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:49,580 INFO L87 Difference]: Start difference. First operand 1516 states and 2239 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:52,402 INFO L93 Difference]: Finished difference Result 3221 states and 4741 transitions. [2022-03-18 16:43:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:43:52,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-03-18 16:43:52,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:52,406 INFO L225 Difference]: With dead ends: 3221 [2022-03-18 16:43:52,406 INFO L226 Difference]: Without dead ends: 1733 [2022-03-18 16:43:52,408 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:43:52,408 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 138 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:52,408 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 430 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 16:43:52,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2022-03-18 16:43:52,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1516. [2022-03-18 16:43:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1511 states have (on average 1.4632693580410325) internal successors, (2211), 1511 states have internal predecessors, (2211), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:52,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2215 transitions. [2022-03-18 16:43:52,433 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2215 transitions. Word has length 202 [2022-03-18 16:43:52,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:52,433 INFO L478 AbstractCegarLoop]: Abstraction has 1516 states and 2215 transitions. [2022-03-18 16:43:52,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:52,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2215 transitions. [2022-03-18 16:43:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-18 16:43:52,436 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:52,436 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:52,436 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 16:43:52,436 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:52,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:52,437 INFO L85 PathProgramCache]: Analyzing trace with hash -681149549, now seen corresponding path program 1 times [2022-03-18 16:43:52,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:52,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400104651] [2022-03-18 16:43:52,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:52,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-18 16:43:52,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:52,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400104651] [2022-03-18 16:43:52,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400104651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:52,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:52,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:43:52,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184800539] [2022-03-18 16:43:52,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:52,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:43:52,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:52,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:43:52,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:52,572 INFO L87 Difference]: Start difference. First operand 1516 states and 2215 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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) [2022-03-18 16:43:53,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:54,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:55,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:43:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:43:56,062 INFO L93 Difference]: Finished difference Result 3491 states and 5127 transitions. [2022-03-18 16:43:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:43:56,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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 203 [2022-03-18 16:43:56,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:43:56,067 INFO L225 Difference]: With dead ends: 3491 [2022-03-18 16:43:56,067 INFO L226 Difference]: Without dead ends: 2003 [2022-03-18 16:43:56,068 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:43:56,068 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:43:56,069 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 16:43:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2022-03-18 16:43:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 2003. [2022-03-18 16:43:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.464964964964965) internal successors, (2927), 1998 states have internal predecessors, (2927), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2931 transitions. [2022-03-18 16:43:56,103 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2931 transitions. Word has length 203 [2022-03-18 16:43:56,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:43:56,104 INFO L478 AbstractCegarLoop]: Abstraction has 2003 states and 2931 transitions. [2022-03-18 16:43:56,104 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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) [2022-03-18 16:43:56,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2931 transitions. [2022-03-18 16:43:56,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-18 16:43:56,107 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:43:56,108 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:43:56,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 16:43:56,108 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:43:56,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:43:56,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1744677605, now seen corresponding path program 1 times [2022-03-18 16:43:56,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:43:56,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953064793] [2022-03-18 16:43:56,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:43:56,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:43:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:56,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:43:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:43:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-18 16:43:56,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:43:56,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953064793] [2022-03-18 16:43:56,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953064793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:43:56,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:43:56,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:43:56,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696252602] [2022-03-18 16:43:56,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:43:56,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:43:56,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:43:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:43:56,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:43:56,232 INFO L87 Difference]: Start difference. First operand 2003 states and 2931 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:43:59,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:00,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:00,436 INFO L93 Difference]: Finished difference Result 4047 states and 5931 transitions. [2022-03-18 16:44:00,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:44:00,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2022-03-18 16:44:00,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:00,443 INFO L225 Difference]: With dead ends: 4047 [2022-03-18 16:44:00,444 INFO L226 Difference]: Without dead ends: 2072 [2022-03-18 16:44:00,447 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:44:00,447 INFO L912 BasicCegarLoop]: 256 mSDtfsCounter, 38 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:00,447 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 643 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 16:44:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2022-03-18 16:44:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 2003. [2022-03-18 16:44:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.462962962962963) internal successors, (2923), 1998 states have internal predecessors, (2923), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2927 transitions. [2022-03-18 16:44:00,505 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2927 transitions. Word has length 233 [2022-03-18 16:44:00,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:00,505 INFO L478 AbstractCegarLoop]: Abstraction has 2003 states and 2927 transitions. [2022-03-18 16:44:00,505 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:00,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2927 transitions. [2022-03-18 16:44:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-18 16:44:00,509 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:00,509 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:00,510 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 16:44:00,510 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:00,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:00,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1564687898, now seen corresponding path program 1 times [2022-03-18 16:44:00,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:00,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200926296] [2022-03-18 16:44:00,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:00,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-18 16:44:00,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:00,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200926296] [2022-03-18 16:44:00,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200926296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:00,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:00,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:44:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707878888] [2022-03-18 16:44:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:00,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:44:00,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:44:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:44:00,654 INFO L87 Difference]: Start difference. First operand 2003 states and 2927 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:03,636 INFO L93 Difference]: Finished difference Result 4267 states and 6216 transitions. [2022-03-18 16:44:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:44:03,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-18 16:44:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:03,644 INFO L225 Difference]: With dead ends: 4267 [2022-03-18 16:44:03,644 INFO L226 Difference]: Without dead ends: 2292 [2022-03-18 16:44:03,646 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:44:03,647 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 139 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:03,647 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 420 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 16:44:03,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-03-18 16:44:03,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2003. [2022-03-18 16:44:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.444944944944945) internal successors, (2887), 1998 states have internal predecessors, (2887), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2891 transitions. [2022-03-18 16:44:03,699 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2891 transitions. Word has length 234 [2022-03-18 16:44:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:03,699 INFO L478 AbstractCegarLoop]: Abstraction has 2003 states and 2891 transitions. [2022-03-18 16:44:03,699 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:03,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2891 transitions. [2022-03-18 16:44:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-18 16:44:03,702 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:03,703 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:03,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 16:44:03,703 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:03,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:03,703 INFO L85 PathProgramCache]: Analyzing trace with hash -350585189, now seen corresponding path program 1 times [2022-03-18 16:44:03,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:03,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138236078] [2022-03-18 16:44:03,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:03,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:03,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-03-18 16:44:03,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:03,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138236078] [2022-03-18 16:44:03,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138236078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:03,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:03,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:03,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041374631] [2022-03-18 16:44:03,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:03,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:03,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:03,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:03,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:03,843 INFO L87 Difference]: Start difference. First operand 2003 states and 2891 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:06,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:06,544 INFO L93 Difference]: Finished difference Result 4464 states and 6455 transitions. [2022-03-18 16:44:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:06,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 236 [2022-03-18 16:44:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:06,551 INFO L225 Difference]: With dead ends: 4464 [2022-03-18 16:44:06,551 INFO L226 Difference]: Without dead ends: 2489 [2022-03-18 16:44:06,554 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:06,554 INFO L912 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:06,554 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:44:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2022-03-18 16:44:06,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2022-03-18 16:44:06,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2484 states have (on average 1.4436392914653784) internal successors, (3586), 2484 states have internal predecessors, (3586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3590 transitions. [2022-03-18 16:44:06,606 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3590 transitions. Word has length 236 [2022-03-18 16:44:06,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:06,606 INFO L478 AbstractCegarLoop]: Abstraction has 2489 states and 3590 transitions. [2022-03-18 16:44:06,606 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3590 transitions. [2022-03-18 16:44:06,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-18 16:44:06,610 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:06,610 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:06,611 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 16:44:06,611 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:06,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:06,611 INFO L85 PathProgramCache]: Analyzing trace with hash -48256832, now seen corresponding path program 1 times [2022-03-18 16:44:06,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:06,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431582693] [2022-03-18 16:44:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:06,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-18 16:44:06,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:06,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431582693] [2022-03-18 16:44:06,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431582693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:06,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:06,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:06,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540545712] [2022-03-18 16:44:06,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:06,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:06,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:06,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:06,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:06,747 INFO L87 Difference]: Start difference. First operand 2489 states and 3590 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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) [2022-03-18 16:44:09,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:09,797 INFO L93 Difference]: Finished difference Result 5437 states and 7867 transitions. [2022-03-18 16:44:09,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:09,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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 242 [2022-03-18 16:44:09,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:09,803 INFO L225 Difference]: With dead ends: 5437 [2022-03-18 16:44:09,803 INFO L226 Difference]: Without dead ends: 2976 [2022-03-18 16:44:09,806 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:09,807 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 167 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:09,807 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 16:44:09,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-03-18 16:44:09,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976. [2022-03-18 16:44:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2971 states have (on average 1.4449680242342646) internal successors, (4293), 2971 states have internal predecessors, (4293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:09,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4297 transitions. [2022-03-18 16:44:09,878 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4297 transitions. Word has length 242 [2022-03-18 16:44:09,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:09,878 INFO L478 AbstractCegarLoop]: Abstraction has 2976 states and 4297 transitions. [2022-03-18 16:44:09,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 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) [2022-03-18 16:44:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4297 transitions. [2022-03-18 16:44:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-18 16:44:09,882 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:09,883 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:09,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 16:44:09,883 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:09,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:09,884 INFO L85 PathProgramCache]: Analyzing trace with hash 805139114, now seen corresponding path program 1 times [2022-03-18 16:44:09,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:09,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232913624] [2022-03-18 16:44:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:09,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:10,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-18 16:44:10,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:10,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232913624] [2022-03-18 16:44:10,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232913624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:10,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:10,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:10,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992537407] [2022-03-18 16:44:10,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:10,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:10,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:10,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:10,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:10,055 INFO L87 Difference]: Start difference. First operand 2976 states and 4297 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2022-03-18 16:44:11,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:11,274 INFO L93 Difference]: Finished difference Result 6411 states and 9281 transitions. [2022-03-18 16:44:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:11,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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 244 [2022-03-18 16:44:11,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:11,280 INFO L225 Difference]: With dead ends: 6411 [2022-03-18 16:44:11,281 INFO L226 Difference]: Without dead ends: 3463 [2022-03-18 16:44:11,283 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:11,284 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 168 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:11,284 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 388 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-18 16:44:11,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2022-03-18 16:44:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3463. [2022-03-18 16:44:11,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3458 states have (on average 1.4462116830537883) internal successors, (5001), 3458 states have internal predecessors, (5001), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5005 transitions. [2022-03-18 16:44:11,359 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5005 transitions. Word has length 244 [2022-03-18 16:44:11,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:11,359 INFO L478 AbstractCegarLoop]: Abstraction has 3463 states and 5005 transitions. [2022-03-18 16:44:11,359 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2022-03-18 16:44:11,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5005 transitions. [2022-03-18 16:44:11,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-18 16:44:11,364 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:11,364 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:11,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 16:44:11,365 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:11,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:11,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1286257332, now seen corresponding path program 1 times [2022-03-18 16:44:11,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:11,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016494962] [2022-03-18 16:44:11,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:11,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-18 16:44:11,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:11,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016494962] [2022-03-18 16:44:11,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016494962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:11,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:11,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:11,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479010404] [2022-03-18 16:44:11,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:11,526 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:11,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:11,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:11,527 INFO L87 Difference]: Start difference. First operand 3463 states and 5005 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:13,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:14,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:14,605 INFO L93 Difference]: Finished difference Result 7378 states and 10686 transitions. [2022-03-18 16:44:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:14,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-03-18 16:44:14,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:14,611 INFO L225 Difference]: With dead ends: 7378 [2022-03-18 16:44:14,611 INFO L226 Difference]: Without dead ends: 3943 [2022-03-18 16:44:14,614 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:14,614 INFO L912 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:14,614 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 16:44:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2022-03-18 16:44:14,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3943. [2022-03-18 16:44:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3938 states have (on average 1.4456576942610462) internal successors, (5693), 3938 states have internal predecessors, (5693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 5697 transitions. [2022-03-18 16:44:14,659 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 5697 transitions. Word has length 276 [2022-03-18 16:44:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:14,660 INFO L478 AbstractCegarLoop]: Abstraction has 3943 states and 5697 transitions. [2022-03-18 16:44:14,660 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 5697 transitions. [2022-03-18 16:44:14,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-18 16:44:14,666 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:14,666 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:14,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 16:44:14,666 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:14,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:14,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1534403826, now seen corresponding path program 1 times [2022-03-18 16:44:14,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:14,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737845415] [2022-03-18 16:44:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-18 16:44:14,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:14,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737845415] [2022-03-18 16:44:14,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737845415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:14,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:14,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:14,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441150518] [2022-03-18 16:44:14,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:14,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:14,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:14,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:14,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:14,863 INFO L87 Difference]: Start difference. First operand 3943 states and 5697 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 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) [2022-03-18 16:44:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:16,316 INFO L93 Difference]: Finished difference Result 8312 states and 12034 transitions. [2022-03-18 16:44:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:16,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 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 276 [2022-03-18 16:44:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:16,326 INFO L225 Difference]: With dead ends: 8312 [2022-03-18 16:44:16,326 INFO L226 Difference]: Without dead ends: 4397 [2022-03-18 16:44:16,331 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:16,332 INFO L912 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:16,333 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-18 16:44:16,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2022-03-18 16:44:16,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4397. [2022-03-18 16:44:16,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4392 states have (on average 1.4448998178506376) internal successors, (6346), 4392 states have internal predecessors, (6346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 6350 transitions. [2022-03-18 16:44:16,448 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 6350 transitions. Word has length 276 [2022-03-18 16:44:16,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:16,449 INFO L478 AbstractCegarLoop]: Abstraction has 4397 states and 6350 transitions. [2022-03-18 16:44:16,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 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) [2022-03-18 16:44:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 6350 transitions. [2022-03-18 16:44:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-03-18 16:44:16,456 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:16,456 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:16,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 16:44:16,456 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:16,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:16,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2131522909, now seen corresponding path program 1 times [2022-03-18 16:44:16,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:16,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003299022] [2022-03-18 16:44:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:16,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-03-18 16:44:16,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:16,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003299022] [2022-03-18 16:44:16,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003299022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:16,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:16,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902997314] [2022-03-18 16:44:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:16,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:16,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:16,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:16,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:16,657 INFO L87 Difference]: Start difference. First operand 4397 states and 6350 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) [2022-03-18 16:44:18,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:18,610 INFO L93 Difference]: Finished difference Result 9253 states and 13387 transitions. [2022-03-18 16:44:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:18,611 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 351 [2022-03-18 16:44:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:18,620 INFO L225 Difference]: With dead ends: 9253 [2022-03-18 16:44:18,620 INFO L226 Difference]: Without dead ends: 4884 [2022-03-18 16:44:18,626 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:18,627 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:18,627 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:44:18,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2022-03-18 16:44:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2022-03-18 16:44:18,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 4879 states have (on average 1.4464029514244723) internal successors, (7057), 4879 states have internal predecessors, (7057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:18,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 7061 transitions. [2022-03-18 16:44:18,710 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 7061 transitions. Word has length 351 [2022-03-18 16:44:18,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:18,710 INFO L478 AbstractCegarLoop]: Abstraction has 4884 states and 7061 transitions. [2022-03-18 16:44:18,710 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) [2022-03-18 16:44:18,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 7061 transitions. [2022-03-18 16:44:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-03-18 16:44:18,718 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:18,718 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:18,718 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 16:44:18,718 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:18,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2032087717, now seen corresponding path program 1 times [2022-03-18 16:44:18,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:18,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758206978] [2022-03-18 16:44:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:18,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:18,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-03-18 16:44:18,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:18,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758206978] [2022-03-18 16:44:18,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758206978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:18,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:18,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:18,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139449209] [2022-03-18 16:44:18,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:18,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:18,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:18,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:18,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:18,957 INFO L87 Difference]: Start difference. First operand 4884 states and 7061 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2022-03-18 16:44:20,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:21,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:23,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:23,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:23,837 INFO L93 Difference]: Finished difference Result 10227 states and 14809 transitions. [2022-03-18 16:44:23,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:23,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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 392 [2022-03-18 16:44:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:23,846 INFO L225 Difference]: With dead ends: 10227 [2022-03-18 16:44:23,846 INFO L226 Difference]: Without dead ends: 5371 [2022-03-18 16:44:23,851 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:23,852 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:23,853 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 16:44:23,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2022-03-18 16:44:23,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2022-03-18 16:44:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 5366 states have (on average 1.4478196049198657) internal successors, (7769), 5366 states have internal predecessors, (7769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:23,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7773 transitions. [2022-03-18 16:44:23,944 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7773 transitions. Word has length 392 [2022-03-18 16:44:23,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:23,944 INFO L478 AbstractCegarLoop]: Abstraction has 5371 states and 7773 transitions. [2022-03-18 16:44:23,944 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 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) [2022-03-18 16:44:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7773 transitions. [2022-03-18 16:44:23,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-03-18 16:44:23,952 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:23,953 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:23,953 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 16:44:23,953 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:23,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:23,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2031073003, now seen corresponding path program 1 times [2022-03-18 16:44:23,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:23,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183540763] [2022-03-18 16:44:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:23,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-03-18 16:44:24,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:24,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183540763] [2022-03-18 16:44:24,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183540763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:24,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:24,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:24,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99455806] [2022-03-18 16:44:24,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:24,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:24,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:24,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:24,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:24,189 INFO L87 Difference]: Start difference. First operand 5371 states and 7773 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2022-03-18 16:44:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:26,074 INFO L93 Difference]: Finished difference Result 11195 states and 16224 transitions. [2022-03-18 16:44:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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 399 [2022-03-18 16:44:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:26,080 INFO L225 Difference]: With dead ends: 11195 [2022-03-18 16:44:26,080 INFO L226 Difference]: Without dead ends: 5852 [2022-03-18 16:44:26,087 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:26,088 INFO L912 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:26,088 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-18 16:44:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5852 states. [2022-03-18 16:44:26,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5852 to 5852. [2022-03-18 16:44:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5852 states, 5847 states have (on average 1.4472378997776638) internal successors, (8462), 5847 states have internal predecessors, (8462), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 8466 transitions. [2022-03-18 16:44:26,192 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 8466 transitions. Word has length 399 [2022-03-18 16:44:26,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:26,193 INFO L478 AbstractCegarLoop]: Abstraction has 5852 states and 8466 transitions. [2022-03-18 16:44:26,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 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) [2022-03-18 16:44:26,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 8466 transitions. [2022-03-18 16:44:26,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-03-18 16:44:26,202 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:26,202 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:26,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 16:44:26,202 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:26,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2048463644, now seen corresponding path program 1 times [2022-03-18 16:44:26,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:26,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070973357] [2022-03-18 16:44:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2119 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2022-03-18 16:44:26,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:26,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070973357] [2022-03-18 16:44:26,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070973357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:26,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:26,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:26,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433612285] [2022-03-18 16:44:26,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:26,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:26,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:26,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:26,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:26,473 INFO L87 Difference]: Start difference. First operand 5852 states and 8466 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:28,308 INFO L93 Difference]: Finished difference Result 12163 states and 17619 transitions. [2022-03-18 16:44:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 475 [2022-03-18 16:44:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:28,314 INFO L225 Difference]: With dead ends: 12163 [2022-03-18 16:44:28,314 INFO L226 Difference]: Without dead ends: 6339 [2022-03-18 16:44:28,319 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:28,320 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:28,320 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-18 16:44:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6339 states. [2022-03-18 16:44:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6339 to 6339. [2022-03-18 16:44:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6339 states, 6334 states have (on average 1.4486896116198296) internal successors, (9176), 6334 states have internal predecessors, (9176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 9180 transitions. [2022-03-18 16:44:28,423 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 9180 transitions. Word has length 475 [2022-03-18 16:44:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:28,424 INFO L478 AbstractCegarLoop]: Abstraction has 6339 states and 9180 transitions. [2022-03-18 16:44:28,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 9180 transitions. [2022-03-18 16:44:28,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-03-18 16:44:28,434 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:28,434 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:28,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 16:44:28,434 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:28,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1315373064, now seen corresponding path program 1 times [2022-03-18 16:44:28,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:28,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457909358] [2022-03-18 16:44:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:28,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:28,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:28,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 744 proven. 7 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2022-03-18 16:44:28,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:28,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457909358] [2022-03-18 16:44:28,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457909358] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:44:28,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112264716] [2022-03-18 16:44:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:28,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:44:28,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:44:28,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:44:28,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 16:44:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:29,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2420 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-18 16:44:29,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:44:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2022-03-18 16:44:30,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 16:44:30,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112264716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:30,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-18 16:44:30,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-18 16:44:30,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732291946] [2022-03-18 16:44:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:30,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 16:44:30,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:30,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 16:44:30,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-18 16:44:30,452 INFO L87 Difference]: Start difference. First operand 6339 states and 9180 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 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) [2022-03-18 16:44:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:30,629 INFO L93 Difference]: Finished difference Result 13137 states and 19047 transitions. [2022-03-18 16:44:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 16:44:30,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 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 517 [2022-03-18 16:44:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:30,637 INFO L225 Difference]: With dead ends: 13137 [2022-03-18 16:44:30,637 INFO L226 Difference]: Without dead ends: 6826 [2022-03-18 16:44:30,644 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-18 16:44:30,644 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:30,644 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-18 16:44:30,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2022-03-18 16:44:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 6826. [2022-03-18 16:44:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6826 states, 6821 states have (on average 1.4500806333382201) internal successors, (9891), 6821 states have internal predecessors, (9891), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6826 states to 6826 states and 9895 transitions. [2022-03-18 16:44:30,767 INFO L78 Accepts]: Start accepts. Automaton has 6826 states and 9895 transitions. Word has length 517 [2022-03-18 16:44:30,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:30,767 INFO L478 AbstractCegarLoop]: Abstraction has 6826 states and 9895 transitions. [2022-03-18 16:44:30,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 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) [2022-03-18 16:44:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6826 states and 9895 transitions. [2022-03-18 16:44:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-18 16:44:30,779 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:30,779 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:30,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 16:44:30,986 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,SelfDestructingSolverStorable49 [2022-03-18 16:44:30,986 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:30,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash 627561574, now seen corresponding path program 1 times [2022-03-18 16:44:30,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:30,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340102577] [2022-03-18 16:44:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:31,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-03-18 16:44:31,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:31,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340102577] [2022-03-18 16:44:31,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340102577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:31,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:31,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:44:31,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355119431] [2022-03-18 16:44:31,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:31,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:44:31,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:31,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:44:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:44:31,287 INFO L87 Difference]: Start difference. First operand 6826 states and 9895 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:34,279 INFO L93 Difference]: Finished difference Result 14758 states and 21361 transitions. [2022-03-18 16:44:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:44:34,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-03-18 16:44:34,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:34,286 INFO L225 Difference]: With dead ends: 14758 [2022-03-18 16:44:34,286 INFO L226 Difference]: Without dead ends: 7960 [2022-03-18 16:44:34,292 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:44:34,293 INFO L912 BasicCegarLoop]: 286 mSDtfsCounter, 66 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:34,293 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 703 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 16:44:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7960 states. [2022-03-18 16:44:34,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7960 to 7400. [2022-03-18 16:44:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7400 states, 7395 states have (on average 1.4511156186612577) internal successors, (10731), 7395 states have internal predecessors, (10731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7400 states to 7400 states and 10735 transitions. [2022-03-18 16:44:34,449 INFO L78 Accepts]: Start accepts. Automaton has 7400 states and 10735 transitions. Word has length 525 [2022-03-18 16:44:34,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:34,450 INFO L478 AbstractCegarLoop]: Abstraction has 7400 states and 10735 transitions. [2022-03-18 16:44:34,451 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:34,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7400 states and 10735 transitions. [2022-03-18 16:44:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-18 16:44:34,461 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:34,461 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:34,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-18 16:44:34,462 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:34,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:34,462 INFO L85 PathProgramCache]: Analyzing trace with hash -229264670, now seen corresponding path program 1 times [2022-03-18 16:44:34,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:34,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901723701] [2022-03-18 16:44:34,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:34,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:34,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-03-18 16:44:34,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:34,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901723701] [2022-03-18 16:44:34,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901723701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:34,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:34,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:34,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685139804] [2022-03-18 16:44:34,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:34,726 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:34,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:34,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:34,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:34,727 INFO L87 Difference]: Start difference. First operand 7400 states and 10735 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:37,002 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 [] [2022-03-18 16:44:38,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:38,037 INFO L93 Difference]: Finished difference Result 15295 states and 22210 transitions. [2022-03-18 16:44:38,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:38,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-03-18 16:44:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:38,047 INFO L225 Difference]: With dead ends: 15295 [2022-03-18 16:44:38,047 INFO L226 Difference]: Without dead ends: 7923 [2022-03-18 16:44:38,056 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:38,057 INFO L912 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:38,057 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 16:44:38,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2022-03-18 16:44:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 7923. [2022-03-18 16:44:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7923 states, 7918 states have (on average 1.4504925486233897) internal successors, (11485), 7918 states have internal predecessors, (11485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7923 states to 7923 states and 11489 transitions. [2022-03-18 16:44:38,213 INFO L78 Accepts]: Start accepts. Automaton has 7923 states and 11489 transitions. Word has length 525 [2022-03-18 16:44:38,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:38,213 INFO L478 AbstractCegarLoop]: Abstraction has 7923 states and 11489 transitions. [2022-03-18 16:44:38,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand 7923 states and 11489 transitions. [2022-03-18 16:44:38,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-03-18 16:44:38,224 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:38,224 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 8, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:38,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-18 16:44:38,225 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1052727734, now seen corresponding path program 1 times [2022-03-18 16:44:38,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:38,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763687584] [2022-03-18 16:44:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:38,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 849 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-03-18 16:44:38,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:38,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763687584] [2022-03-18 16:44:38,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763687584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:38,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:38,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:38,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929918342] [2022-03-18 16:44:38,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:38,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:38,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:38,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:38,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:38,493 INFO L87 Difference]: Start difference. First operand 7923 states and 11489 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:41,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:41,855 INFO L93 Difference]: Finished difference Result 16346 states and 23725 transitions. [2022-03-18 16:44:41,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:41,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 602 [2022-03-18 16:44:41,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:41,863 INFO L225 Difference]: With dead ends: 16346 [2022-03-18 16:44:41,863 INFO L226 Difference]: Without dead ends: 8451 [2022-03-18 16:44:41,869 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:41,869 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:41,870 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 16:44:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8451 states. [2022-03-18 16:44:42,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8451 to 8451. [2022-03-18 16:44:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8451 states, 8446 states have (on average 1.451811508406346) internal successors, (12262), 8446 states have internal predecessors, (12262), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8451 states to 8451 states and 12266 transitions. [2022-03-18 16:44:42,032 INFO L78 Accepts]: Start accepts. Automaton has 8451 states and 12266 transitions. Word has length 602 [2022-03-18 16:44:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:42,032 INFO L478 AbstractCegarLoop]: Abstraction has 8451 states and 12266 transitions. [2022-03-18 16:44:42,032 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8451 states and 12266 transitions. [2022-03-18 16:44:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-18 16:44:42,042 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:42,042 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:42,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-18 16:44:42,043 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:42,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:42,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1295387989, now seen corresponding path program 1 times [2022-03-18 16:44:42,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:42,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492119832] [2022-03-18 16:44:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:42,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 3001 trivial. 0 not checked. [2022-03-18 16:44:42,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:42,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492119832] [2022-03-18 16:44:42,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492119832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:42,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:42,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:44:42,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488515541] [2022-03-18 16:44:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:42,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:44:42,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:44:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:42,403 INFO L87 Difference]: Start difference. First operand 8451 states and 12266 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:44,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:44:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:44,766 INFO L93 Difference]: Finished difference Result 8981 states and 13046 transitions. [2022-03-18 16:44:44,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:44:44,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-18 16:44:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:44,776 INFO L225 Difference]: With dead ends: 8981 [2022-03-18 16:44:44,776 INFO L226 Difference]: Without dead ends: 8979 [2022-03-18 16:44:44,777 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:44:44,778 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:44,778 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 378 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 288 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:44:44,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8979 states. [2022-03-18 16:44:44,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8979 to 8979. [2022-03-18 16:44:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8979 states, 8974 states have (on average 1.4530866948963672) internal successors, (13040), 8974 states have internal predecessors, (13040), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8979 states to 8979 states and 13044 transitions. [2022-03-18 16:44:44,938 INFO L78 Accepts]: Start accepts. Automaton has 8979 states and 13044 transitions. Word has length 645 [2022-03-18 16:44:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:44,938 INFO L478 AbstractCegarLoop]: Abstraction has 8979 states and 13044 transitions. [2022-03-18 16:44:44,938 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 8979 states and 13044 transitions. [2022-03-18 16:44:44,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2022-03-18 16:44:44,947 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:44,948 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:44,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-18 16:44:44,948 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:44,948 INFO L85 PathProgramCache]: Analyzing trace with hash -802891572, now seen corresponding path program 1 times [2022-03-18 16:44:44,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:44,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563722961] [2022-03-18 16:44:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:44,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1710 proven. 48 refuted. 0 times theorem prover too weak. 2188 trivial. 0 not checked. [2022-03-18 16:44:45,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:45,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563722961] [2022-03-18 16:44:45,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563722961] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:44:45,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991592148] [2022-03-18 16:44:45,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:45,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:44:45,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:44:45,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:44:45,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 16:44:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:46,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-18 16:44:46,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:44:46,967 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:44:46,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:44:47,078 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-18 16:44:47,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-18 16:44:47,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:44:47,476 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:44:47,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:44:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:44:47,589 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 23 treesize of output 22 [2022-03-18 16:44:47,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-18 16:44:47,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-18 16:44:47,695 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-03-18 16:44:47,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 77 [2022-03-18 16:44:47,836 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-18 16:44:47,837 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 65 treesize of output 49 [2022-03-18 16:44:48,097 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:44:48,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-18 16:44:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2435 proven. 212 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2022-03-18 16:44:48,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:44:48,955 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 77 treesize of output 53 [2022-03-18 16:44:48,960 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 53 treesize of output 41 [2022-03-18 16:44:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 2245 proven. 0 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2022-03-18 16:44:51,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991592148] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:44:51,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:44:51,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 14] total 20 [2022-03-18 16:44:51,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086458140] [2022-03-18 16:44:51,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:51,399 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 16:44:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:51,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 16:44:51,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-03-18 16:44:51,400 INFO L87 Difference]: Start difference. First operand 8979 states and 13044 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:58,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:44:58,078 INFO L93 Difference]: Finished difference Result 26430 states and 38498 transitions. [2022-03-18 16:44:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 16:44:58,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 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 654 [2022-03-18 16:44:58,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:44:58,101 INFO L225 Difference]: With dead ends: 26430 [2022-03-18 16:44:58,101 INFO L226 Difference]: Without dead ends: 17479 [2022-03-18 16:44:58,112 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1325 GetRequests, 1303 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-03-18 16:44:58,113 INFO L912 BasicCegarLoop]: 262 mSDtfsCounter, 277 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:44:58,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 1152 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 633 Invalid, 0 Unknown, 114 Unchecked, 2.3s Time] [2022-03-18 16:44:58,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17479 states. [2022-03-18 16:44:58,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17479 to 15062. [2022-03-18 16:44:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15062 states, 15057 states have (on average 1.4686192468619246) internal successors, (22113), 15057 states have internal predecessors, (22113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:58,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15062 states to 15062 states and 22117 transitions. [2022-03-18 16:44:58,398 INFO L78 Accepts]: Start accepts. Automaton has 15062 states and 22117 transitions. Word has length 654 [2022-03-18 16:44:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:44:58,398 INFO L478 AbstractCegarLoop]: Abstraction has 15062 states and 22117 transitions. [2022-03-18 16:44:58,399 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:44:58,399 INFO L276 IsEmpty]: Start isEmpty. Operand 15062 states and 22117 transitions. [2022-03-18 16:44:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-03-18 16:44:58,418 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:44:58,419 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:44:58,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-18 16:44:58,634 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,SelfDestructingSolverStorable54 [2022-03-18 16:44:58,635 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:44:58,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:44:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash -750557904, now seen corresponding path program 1 times [2022-03-18 16:44:58,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:44:58,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856700248] [2022-03-18 16:44:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:44:58,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:44:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:58,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:44:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:44:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2022-03-18 16:44:58,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:44:58,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856700248] [2022-03-18 16:44:58,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856700248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:44:58,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:44:58,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:44:58,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982341629] [2022-03-18 16:44:58,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:44:58,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:44:58,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:44:58,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:44:58,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:44:58,982 INFO L87 Difference]: Start difference. First operand 15062 states and 22117 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:02,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:02,416 INFO L93 Difference]: Finished difference Result 31224 states and 45740 transitions. [2022-03-18 16:45:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:02,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 656 [2022-03-18 16:45:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:02,432 INFO L225 Difference]: With dead ends: 31224 [2022-03-18 16:45:02,432 INFO L226 Difference]: Without dead ends: 16190 [2022-03-18 16:45:02,446 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:45:02,446 INFO L912 BasicCegarLoop]: 285 mSDtfsCounter, 64 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:02,447 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 701 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 16:45:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16190 states. [2022-03-18 16:45:02,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16190 to 15079. [2022-03-18 16:45:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15079 states, 15074 states have (on average 1.468090752288709) internal successors, (22130), 15074 states have internal predecessors, (22130), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:02,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15079 states to 15079 states and 22134 transitions. [2022-03-18 16:45:02,719 INFO L78 Accepts]: Start accepts. Automaton has 15079 states and 22134 transitions. Word has length 656 [2022-03-18 16:45:02,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:02,719 INFO L478 AbstractCegarLoop]: Abstraction has 15079 states and 22134 transitions. [2022-03-18 16:45:02,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:02,720 INFO L276 IsEmpty]: Start isEmpty. Operand 15079 states and 22134 transitions. [2022-03-18 16:45:02,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-03-18 16:45:02,743 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:02,743 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:02,743 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-18 16:45:02,744 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:02,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1628225588, now seen corresponding path program 1 times [2022-03-18 16:45:02,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:02,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257569578] [2022-03-18 16:45:02,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:02,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2484 proven. 0 refuted. 0 times theorem prover too weak. 2094 trivial. 0 not checked. [2022-03-18 16:45:03,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:03,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257569578] [2022-03-18 16:45:03,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257569578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:03,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:03,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:03,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599054251] [2022-03-18 16:45:03,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:03,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:03,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:03,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:03,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:03,100 INFO L87 Difference]: Start difference. First operand 15079 states and 22134 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:05,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:05,981 INFO L93 Difference]: Finished difference Result 31113 states and 45560 transitions. [2022-03-18 16:45:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:05,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 698 [2022-03-18 16:45:05,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:05,997 INFO L225 Difference]: With dead ends: 31113 [2022-03-18 16:45:05,998 INFO L226 Difference]: Without dead ends: 16062 [2022-03-18 16:45:06,014 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:45:06,015 INFO L912 BasicCegarLoop]: 281 mSDtfsCounter, 79 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:06,015 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 693 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:45:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16062 states. [2022-03-18 16:45:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16062 to 15079. [2022-03-18 16:45:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15079 states, 15074 states have (on average 1.4659678917341117) internal successors, (22098), 15074 states have internal predecessors, (22098), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15079 states to 15079 states and 22102 transitions. [2022-03-18 16:45:06,295 INFO L78 Accepts]: Start accepts. Automaton has 15079 states and 22102 transitions. Word has length 698 [2022-03-18 16:45:06,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:06,296 INFO L478 AbstractCegarLoop]: Abstraction has 15079 states and 22102 transitions. [2022-03-18 16:45:06,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:06,296 INFO L276 IsEmpty]: Start isEmpty. Operand 15079 states and 22102 transitions. [2022-03-18 16:45:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-03-18 16:45:06,312 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:06,312 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:06,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-18 16:45:06,312 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:06,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1196923068, now seen corresponding path program 1 times [2022-03-18 16:45:06,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:06,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611930410] [2022-03-18 16:45:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:06,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:06,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4755 backedges. 2590 proven. 34 refuted. 0 times theorem prover too weak. 2131 trivial. 0 not checked. [2022-03-18 16:45:06,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:06,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611930410] [2022-03-18 16:45:06,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611930410] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:45:06,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262350976] [2022-03-18 16:45:06,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:06,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:06,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:45:06,721 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:45:06,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-18 16:45:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:08,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 3108 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-18 16:45:08,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:45:08,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-18 16:45:08,750 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-03-18 16:45:08,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-03-18 16:45:08,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-03-18 16:45:08,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-03-18 16:45:08,919 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-03-18 16:45:08,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 21 [2022-03-18 16:45:08,926 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 7 treesize of output 3 [2022-03-18 16:45:08,949 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 7 treesize of output 3 [2022-03-18 16:45:09,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:45:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4755 backedges. 2574 proven. 0 refuted. 0 times theorem prover too weak. 2181 trivial. 0 not checked. [2022-03-18 16:45:09,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 16:45:09,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262350976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:09,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-18 16:45:09,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-03-18 16:45:09,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095880733] [2022-03-18 16:45:09,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:09,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:45:09,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:09,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:45:09,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:45:09,311 INFO L87 Difference]: Start difference. First operand 15079 states and 22102 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:10,612 INFO L93 Difference]: Finished difference Result 30997 states and 45394 transitions. [2022-03-18 16:45:10,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:45:10,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 704 [2022-03-18 16:45:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:10,626 INFO L225 Difference]: With dead ends: 30997 [2022-03-18 16:45:10,626 INFO L226 Difference]: Without dead ends: 15946 [2022-03-18 16:45:10,636 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:45:10,636 INFO L912 BasicCegarLoop]: 290 mSDtfsCounter, 67 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:10,638 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 709 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-18 16:45:10,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15946 states. [2022-03-18 16:45:10,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15946 to 15266. [2022-03-18 16:45:10,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15266 states, 15261 states have (on average 1.4669418779896468) internal successors, (22387), 15261 states have internal predecessors, (22387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15266 states to 15266 states and 22391 transitions. [2022-03-18 16:45:10,868 INFO L78 Accepts]: Start accepts. Automaton has 15266 states and 22391 transitions. Word has length 704 [2022-03-18 16:45:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:10,868 INFO L478 AbstractCegarLoop]: Abstraction has 15266 states and 22391 transitions. [2022-03-18 16:45:10,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:10,868 INFO L276 IsEmpty]: Start isEmpty. Operand 15266 states and 22391 transitions. [2022-03-18 16:45:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-03-18 16:45:10,883 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:10,883 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:10,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-18 16:45:11,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:11,084 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:11,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:11,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1120016460, now seen corresponding path program 1 times [2022-03-18 16:45:11,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:11,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553520164] [2022-03-18 16:45:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:11,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 2525 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2022-03-18 16:45:11,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:11,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553520164] [2022-03-18 16:45:11,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553520164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:11,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:11,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:11,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56910719] [2022-03-18 16:45:11,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:11,408 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:11,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:11,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:11,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:11,409 INFO L87 Difference]: Start difference. First operand 15266 states and 22391 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:14,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:15,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:16,342 INFO L93 Difference]: Finished difference Result 30641 states and 44924 transitions. [2022-03-18 16:45:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 706 [2022-03-18 16:45:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:16,356 INFO L225 Difference]: With dead ends: 30641 [2022-03-18 16:45:16,356 INFO L226 Difference]: Without dead ends: 15403 [2022-03-18 16:45:16,361 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:45:16,362 INFO L912 BasicCegarLoop]: 257 mSDtfsCounter, 35 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:16,362 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 646 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 16:45:16,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15403 states. [2022-03-18 16:45:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15403 to 15079. [2022-03-18 16:45:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15079 states, 15074 states have (on average 1.464840122064482) internal successors, (22081), 15074 states have internal predecessors, (22081), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:16,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15079 states to 15079 states and 22085 transitions. [2022-03-18 16:45:16,586 INFO L78 Accepts]: Start accepts. Automaton has 15079 states and 22085 transitions. Word has length 706 [2022-03-18 16:45:16,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:16,586 INFO L478 AbstractCegarLoop]: Abstraction has 15079 states and 22085 transitions. [2022-03-18 16:45:16,586 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:16,586 INFO L276 IsEmpty]: Start isEmpty. Operand 15079 states and 22085 transitions. [2022-03-18 16:45:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2022-03-18 16:45:16,601 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:16,601 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:16,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-18 16:45:16,601 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:16,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:16,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1223537836, now seen corresponding path program 1 times [2022-03-18 16:45:16,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:16,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188713045] [2022-03-18 16:45:16,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 2627 proven. 28 refuted. 0 times theorem prover too weak. 2177 trivial. 0 not checked. [2022-03-18 16:45:16,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:16,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188713045] [2022-03-18 16:45:16,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188713045] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:45:16,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543950194] [2022-03-18 16:45:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:16,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:16,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:45:16,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:45:16,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-18 16:45:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:18,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 3144 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-18 16:45:18,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:45:18,283 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:45:18,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:45:18,330 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:45:18,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:45:18,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:45:18,806 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 36 treesize of output 24 [2022-03-18 16:45:18,826 INFO L356 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-03-18 16:45:18,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 88 [2022-03-18 16:45:18,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:18,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-03-18 16:45:18,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:18,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-03-18 16:45:18,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:18,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 13 [2022-03-18 16:45:19,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:45:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 2622 proven. 220 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2022-03-18 16:45:19,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:45:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4832 backedges. 2617 proven. 0 refuted. 0 times theorem prover too weak. 2215 trivial. 0 not checked. [2022-03-18 16:45:20,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543950194] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:45:20,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:45:20,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-18 16:45:20,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130092028] [2022-03-18 16:45:20,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:20,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:45:20,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:45:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:45:20,002 INFO L87 Difference]: Start difference. First operand 15079 states and 22085 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:21,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:21,662 INFO L93 Difference]: Finished difference Result 32226 states and 47053 transitions. [2022-03-18 16:45:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:45:21,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 710 [2022-03-18 16:45:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:21,681 INFO L225 Difference]: With dead ends: 32226 [2022-03-18 16:45:21,681 INFO L226 Difference]: Without dead ends: 17175 [2022-03-18 16:45:21,694 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1420 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-18 16:45:21,695 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 120 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:21,695 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 577 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-18 16:45:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17175 states. [2022-03-18 16:45:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17175 to 15096. [2022-03-18 16:45:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15096 states, 15091 states have (on average 1.4643164800212047) internal successors, (22098), 15091 states have internal predecessors, (22098), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:22,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15096 states to 15096 states and 22102 transitions. [2022-03-18 16:45:22,022 INFO L78 Accepts]: Start accepts. Automaton has 15096 states and 22102 transitions. Word has length 710 [2022-03-18 16:45:22,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:22,022 INFO L478 AbstractCegarLoop]: Abstraction has 15096 states and 22102 transitions. [2022-03-18 16:45:22,022 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:22,023 INFO L276 IsEmpty]: Start isEmpty. Operand 15096 states and 22102 transitions. [2022-03-18 16:45:22,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-18 16:45:22,038 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:22,039 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:22,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-18 16:45:22,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-03-18 16:45:22,239 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:22,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:22,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1758664862, now seen corresponding path program 1 times [2022-03-18 16:45:22,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:22,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952566376] [2022-03-18 16:45:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:22,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:23,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2052 proven. 363 refuted. 0 times theorem prover too weak. 2444 trivial. 0 not checked. [2022-03-18 16:45:23,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:23,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952566376] [2022-03-18 16:45:23,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952566376] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:45:23,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585064339] [2022-03-18 16:45:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:23,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:23,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:45:23,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:45:23,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-18 16:45:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:24,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-18 16:45:24,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:45:24,734 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:45:24,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:45:25,000 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:45:25,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:45:25,109 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:45:25,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:45:25,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-18 16:45:25,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-18 16:45:25,328 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-18 16:45:25,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-18 16:45:25,403 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-18 16:45:25,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-03-18 16:45:25,501 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:45:25,501 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 [2022-03-18 16:45:25,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:45:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2445 proven. 215 refuted. 0 times theorem prover too weak. 2199 trivial. 0 not checked. [2022-03-18 16:45:25,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:45:26,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-18 16:45:26,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-18 16:45:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2258 proven. 0 refuted. 0 times theorem prover too weak. 2601 trivial. 0 not checked. [2022-03-18 16:45:28,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585064339] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:45:28,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:45:28,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 9] total 23 [2022-03-18 16:45:28,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149727542] [2022-03-18 16:45:28,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:28,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:28,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:28,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:28,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2022-03-18 16:45:28,551 INFO L87 Difference]: Start difference. First operand 15096 states and 22102 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:28,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:28,906 INFO L93 Difference]: Finished difference Result 32503 states and 47727 transitions. [2022-03-18 16:45:28,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:28,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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 712 [2022-03-18 16:45:28,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:28,924 INFO L225 Difference]: With dead ends: 32503 [2022-03-18 16:45:28,925 INFO L226 Difference]: Without dead ends: 17435 [2022-03-18 16:45:28,938 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1446 GetRequests, 1424 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-03-18 16:45:28,938 INFO L912 BasicCegarLoop]: 314 mSDtfsCounter, 228 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:28,939 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 757 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 124 Unchecked, 0.1s Time] [2022-03-18 16:45:28,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17435 states. [2022-03-18 16:45:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17435 to 16342. [2022-03-18 16:45:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16342 states, 16337 states have (on average 1.4777498928811899) internal successors, (24142), 16337 states have internal predecessors, (24142), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16342 states to 16342 states and 24146 transitions. [2022-03-18 16:45:29,223 INFO L78 Accepts]: Start accepts. Automaton has 16342 states and 24146 transitions. Word has length 712 [2022-03-18 16:45:29,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:29,223 INFO L478 AbstractCegarLoop]: Abstraction has 16342 states and 24146 transitions. [2022-03-18 16:45:29,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:29,223 INFO L276 IsEmpty]: Start isEmpty. Operand 16342 states and 24146 transitions. [2022-03-18 16:45:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-18 16:45:29,239 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:29,239 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:29,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-18 16:45:29,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:29,440 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:29,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1522736410, now seen corresponding path program 1 times [2022-03-18 16:45:29,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:29,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814472488] [2022-03-18 16:45:29,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:29,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:29,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4839 backedges. 2578 proven. 0 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2022-03-18 16:45:29,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:29,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814472488] [2022-03-18 16:45:29,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814472488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:29,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:29,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:45:29,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857135718] [2022-03-18 16:45:29,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:29,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:45:29,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:29,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:45:29,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:45:29,805 INFO L87 Difference]: Start difference. First operand 16342 states and 24146 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:31,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:32,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:34,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:35,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:36,342 INFO L93 Difference]: Finished difference Result 34354 states and 50719 transitions. [2022-03-18 16:45:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:45:36,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-18 16:45:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:36,358 INFO L225 Difference]: With dead ends: 34354 [2022-03-18 16:45:36,358 INFO L226 Difference]: Without dead ends: 18040 [2022-03-18 16:45:36,365 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:45:36,365 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:36,365 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 647 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 16:45:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18040 states. [2022-03-18 16:45:36,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18040 to 17334. [2022-03-18 16:45:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17334 states, 17329 states have (on average 1.4753880777886779) internal successors, (25567), 17329 states have internal predecessors, (25567), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:36,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17334 states to 17334 states and 25571 transitions. [2022-03-18 16:45:36,636 INFO L78 Accepts]: Start accepts. Automaton has 17334 states and 25571 transitions. Word has length 712 [2022-03-18 16:45:36,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:36,636 INFO L478 AbstractCegarLoop]: Abstraction has 17334 states and 25571 transitions. [2022-03-18 16:45:36,636 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand 17334 states and 25571 transitions. [2022-03-18 16:45:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-18 16:45:36,654 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:36,654 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:36,654 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-18 16:45:36,654 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:36,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:36,655 INFO L85 PathProgramCache]: Analyzing trace with hash -686894626, now seen corresponding path program 1 times [2022-03-18 16:45:36,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:36,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742431993] [2022-03-18 16:45:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:36,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:37,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4859 trivial. 0 not checked. [2022-03-18 16:45:37,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:37,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742431993] [2022-03-18 16:45:37,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742431993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:45:37,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:45:37,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 16:45:37,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094931484] [2022-03-18 16:45:37,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:45:37,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 16:45:37,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:37,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 16:45:37,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:45:37,683 INFO L87 Difference]: Start difference. First operand 17334 states and 25571 transitions. Second operand has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:39,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:45:40,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:45:40,382 INFO L93 Difference]: Finished difference Result 34661 states and 51134 transitions. [2022-03-18 16:45:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 16:45:40,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-03-18 16:45:40,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:45:40,403 INFO L225 Difference]: With dead ends: 34661 [2022-03-18 16:45:40,403 INFO L226 Difference]: Without dead ends: 17334 [2022-03-18 16:45:40,418 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:45:40,419 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 7 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:45:40,420 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 932 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:45:40,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17334 states. [2022-03-18 16:45:40,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17334 to 17334. [2022-03-18 16:45:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17334 states, 17329 states have (on average 1.475330371054302) internal successors, (25566), 17329 states have internal predecessors, (25566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17334 states to 17334 states and 25570 transitions. [2022-03-18 16:45:40,913 INFO L78 Accepts]: Start accepts. Automaton has 17334 states and 25570 transitions. Word has length 712 [2022-03-18 16:45:40,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:45:40,913 INFO L478 AbstractCegarLoop]: Abstraction has 17334 states and 25570 transitions. [2022-03-18 16:45:40,913 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:45:40,913 INFO L276 IsEmpty]: Start isEmpty. Operand 17334 states and 25570 transitions. [2022-03-18 16:45:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-03-18 16:45:40,933 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:45:40,933 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:45:40,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-18 16:45:40,934 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:45:40,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:45:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1537507868, now seen corresponding path program 1 times [2022-03-18 16:45:40,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:45:40,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917166088] [2022-03-18 16:45:40,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:45:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:45:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1539 proven. 2942 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-03-18 16:45:43,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:45:43,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917166088] [2022-03-18 16:45:43,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917166088] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:45:43,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407830267] [2022-03-18 16:45:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:45:43,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:45:43,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:45:43,055 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:45:43,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-18 16:45:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:45:44,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 92 conjunts are in the unsatisfiable core [2022-03-18 16:45:44,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:45:44,554 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:45:44,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:45:44,664 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-18 16:45:44,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-18 16:45:44,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:45:45,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:45,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-18 16:45:45,295 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-18 16:45:45,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-18 16:45:45,314 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:45:45,315 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 [2022-03-18 16:45:45,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:45,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-18 16:45:45,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:45,877 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-18 16:45:45,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-18 16:45:45,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:45,882 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 [2022-03-18 16:45:45,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:45,951 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 [2022-03-18 16:45:45,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:45,956 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 [2022-03-18 16:45:45,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:45,977 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-18 16:45:45,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-18 16:45:46,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,608 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 16:45:46,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-18 16:45:46,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:46,642 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-18 16:45:46,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-18 16:45:46,695 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-18 16:45:46,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-18 16:45:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,559 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 336 treesize of output 270 [2022-03-18 16:45:47,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:47,570 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 336 treesize of output 276 [2022-03-18 16:45:47,627 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-18 16:45:47,627 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 336 treesize of output 355 [2022-03-18 16:45:53,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,406 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 317 treesize of output 259 [2022-03-18 16:45:53,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,414 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 317 treesize of output 253 [2022-03-18 16:45:53,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,439 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-18 16:45:53,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 317 [2022-03-18 16:45:53,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,722 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 219 treesize of output 159 [2022-03-18 16:45:53,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:53,727 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 159 treesize of output 93 [2022-03-18 16:45:53,773 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-03-18 16:45:53,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 121 treesize of output 149 [2022-03-18 16:45:53,895 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-18 16:45:53,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-18 16:45:54,045 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:45:54,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-18 16:45:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1764 proven. 573 refuted. 0 times theorem prover too weak. 2522 trivial. 0 not checked. [2022-03-18 16:45:54,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:45:56,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:45:56,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:45:56,720 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 268 treesize of output 214 [2022-03-18 16:45:57,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:45:57,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:45:57,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:45:57,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:45:57,155 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-03-18 16:45:57,156 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 2 case distinctions, treesize of input 86 treesize of output 1 [2022-03-18 16:45:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1895 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-03-18 16:45:57,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407830267] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:45:57,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:45:57,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 13] total 46 [2022-03-18 16:45:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632704960] [2022-03-18 16:45:57,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:45:57,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-18 16:45:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:45:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-18 16:45:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1800, Unknown=0, NotChecked=0, Total=2070 [2022-03-18 16:45:57,618 INFO L87 Difference]: Start difference. First operand 17334 states and 25570 transitions. Second operand has 46 states, 46 states have (on average 18.565217391304348) internal successors, (854), 45 states have internal predecessors, (854), 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) [2022-03-18 16:46:00,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:02,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:03,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:05,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:06,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:08,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:11,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:15,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:46:18,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:48:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:48:00,928 INFO L93 Difference]: Finished difference Result 381087 states and 555078 transitions. [2022-03-18 16:48:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 639 states. [2022-03-18 16:48:00,928 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 18.565217391304348) internal successors, (854), 45 states have internal predecessors, (854), 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 712 [2022-03-18 16:48:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:48:01,678 INFO L225 Difference]: With dead ends: 381087 [2022-03-18 16:48:01,679 INFO L226 Difference]: Without dead ends: 363781 [2022-03-18 16:48:01,767 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 2532 GetRequests, 1779 SyntacticMatches, 86 SemanticMatches, 667 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227155 ImplicationChecksByTransitivity, 60.9s TimeCoverageRelationStatistics Valid=34526, Invalid=412366, Unknown=0, NotChecked=0, Total=446892 [2022-03-18 16:48:01,768 INFO L912 BasicCegarLoop]: 1406 mSDtfsCounter, 8539 mSDsluCounter, 30532 mSDsCounter, 0 mSdLazyCounter, 30280 mSolverCounterSat, 1501 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8539 SdHoareTripleChecker+Valid, 31938 SdHoareTripleChecker+Invalid, 42960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 30280 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 11177 IncrementalHoareTripleChecker+Unchecked, 50.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:48:01,768 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [8539 Valid, 31938 Invalid, 42960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1501 Valid, 30280 Invalid, 2 Unknown, 11177 Unchecked, 50.1s Time] [2022-03-18 16:48:01,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363781 states. [2022-03-18 16:48:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363781 to 154832. [2022-03-18 16:48:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154832 states, 154827 states have (on average 1.503523287281934) internal successors, (232786), 154827 states have internal predecessors, (232786), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:48:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154832 states to 154832 states and 232790 transitions. [2022-03-18 16:48:08,410 INFO L78 Accepts]: Start accepts. Automaton has 154832 states and 232790 transitions. Word has length 712 [2022-03-18 16:48:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:48:08,411 INFO L478 AbstractCegarLoop]: Abstraction has 154832 states and 232790 transitions. [2022-03-18 16:48:08,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 18.565217391304348) internal successors, (854), 45 states have internal predecessors, (854), 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) [2022-03-18 16:48:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 154832 states and 232790 transitions. [2022-03-18 16:48:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2022-03-18 16:48:08,588 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:48:08,589 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:48:08,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-18 16:48:08,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:48:08,790 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:48:08,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:48:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash -661721116, now seen corresponding path program 1 times [2022-03-18 16:48:08,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:48:08,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854894157] [2022-03-18 16:48:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:48:08,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:48:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:48:10,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:48:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:48:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 2053 proven. 390 refuted. 0 times theorem prover too weak. 2417 trivial. 0 not checked. [2022-03-18 16:48:10,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:48:10,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854894157] [2022-03-18 16:48:10,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854894157] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:48:10,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813532032] [2022-03-18 16:48:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:48:10,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:48:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:48:10,012 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:48:10,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-18 16:48:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:48:11,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 3177 conjuncts, 115 conjunts are in the unsatisfiable core [2022-03-18 16:48:11,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:48:11,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:11,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:48:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:11,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:11,837 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 16:48:11,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-18 16:48:12,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:48:12,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:12,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:48:12,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:12,423 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 16:48:12,423 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 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:48:12,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:12,719 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 23 treesize of output 22 [2022-03-18 16:48:12,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:12,725 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 23 treesize of output 22 [2022-03-18 16:48:12,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:12,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-18 16:48:12,764 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-18 16:48:12,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-18 16:48:12,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:12,768 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 73 treesize of output 66 [2022-03-18 16:48:13,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:13,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-18 16:48:13,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:13,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-18 16:48:13,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:13,389 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-18 16:48:13,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-18 16:48:13,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:13,437 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 [2022-03-18 16:48:13,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:13,460 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-18 16:48:13,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-18 16:48:13,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:13,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-18 16:48:14,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:14,145 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 16:48:14,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-18 16:48:14,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:14,176 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-18 16:48:14,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-18 16:48:14,218 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-18 16:48:14,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-18 16:48:16,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,849 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 325 treesize of output 253 [2022-03-18 16:48:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,857 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 325 treesize of output 271 [2022-03-18 16:48:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:16,886 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-18 16:48:16,886 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 325 treesize of output 344 [2022-03-18 16:48:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:20,845 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 320 treesize of output 262 [2022-03-18 16:48:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:20,873 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-18 16:48:20,873 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 320 treesize of output 314 [2022-03-18 16:48:20,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:20,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:20,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:20,883 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 327 treesize of output 251 [2022-03-18 16:48:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,190 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 16:48:21,190 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 227 treesize of output 204 [2022-03-18 16:48:21,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 120 [2022-03-18 16:48:21,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,233 INFO L356 Elim1Store]: treesize reduction 89, result has 25.2 percent of original size [2022-03-18 16:48:21,234 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 4 case distinctions, treesize of input 101 treesize of output 102 [2022-03-18 16:48:21,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,350 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 16:48:21,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-18 16:48:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:48:21,358 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 33 treesize of output 35 [2022-03-18 16:48:21,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-18 16:48:21,375 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-18 16:48:21,598 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 16:48:21,598 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 1 case distinctions, treesize of input 23 treesize of output 11 [2022-03-18 16:48:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 1824 proven. 889 refuted. 0 times theorem prover too weak. 2147 trivial. 0 not checked. [2022-03-18 16:48:21,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:48:26,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:48:26,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:48:26,692 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 714 treesize of output 552 [2022-03-18 16:48:26,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:48:26,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 16:48:26,698 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 924 treesize of output 768 [2022-03-18 16:48:45,950 INFO L356 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-03-18 16:48:45,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 810 treesize of output 1 [2022-03-18 16:48:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 1896 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-03-18 16:48:46,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813532032] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:48:46,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:48:46,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24, 14] total 49 [2022-03-18 16:48:46,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954504081] [2022-03-18 16:48:46,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:48:46,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-18 16:48:46,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:48:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-18 16:48:46,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2060, Unknown=7, NotChecked=0, Total=2352 [2022-03-18 16:48:46,482 INFO L87 Difference]: Start difference. First operand 154832 states and 232790 transitions. Second operand has 49 states, 49 states have (on average 16.53061224489796) internal successors, (810), 47 states have internal predecessors, (810), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:48:48,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:48:50,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:48:51,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:48:53,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:49:20,139 WARN L232 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-18 16:49:57,903 WARN L232 SmtUtils]: Spent 14.09s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)